/* Hint App Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

h1, h2, h3, h4 {
    font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", "Helvetica Neue", Arial;
    font-weight: 400;
    color: var(--fg);
    margin: 0;
}

h3 { margin-top: 0; margin-bottom: 20px; }

/* Header Styles */
.header {
    background-color: var(--bg);
    padding: 1rem 2rem;
    color: var(--fg);
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    backdrop-filter: blur(8px);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 18px;
}

.header-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.header-title-link {
    text-decoration: none;
    color: inherit;
    font-size: 1.4rem;
    font-weight: 400;
}

.header-title-link:hover,
.header-title-link:active {
    color: inherit;
    text-decoration: none;
}

.settings-trigger {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.settings-trigger:hover {
    color: var(--accent);
    background-color: rgba(100, 116, 139, 0.08);
}

/* Theme toggle */
.hint-theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 36px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--fg);
    cursor: pointer;
    transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.hint-theme-toggle:hover {
    border-color: rgba(100, 116, 139, 0.35);
    transform: translateY(-1px);
}

.hint-theme-toggle:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22);
}

.hint-theme-toggle-icon {
    width: 18px;
    height: 18px;
    display: none;
}

html.theme-dark .hint-theme-toggle-icon--sun {
    display: block;
}

html:not(.theme-dark) .hint-theme-toggle-icon--moon {
    display: block;
}

.hint-container {
    max-width: 98%;
    margin: 0 auto;
    padding: 10px 20px;
}

.simulation-form {
    display: flex; 
    flex-direction: column;
    align-items: center;
}

.optimizer-page .simulation-form {
    align-items: stretch;
}

.main-column {
    width: 100%;
}

.simulation-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    width: 100%;
    margin-bottom: 30px;
}

.stacked-card-column {
    display: grid;
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 16px;
    height: 100%;
}

/* Card Box - Professional Flat Design */
.card-box {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 24px 20px;
    font-size: 14px;
    color: var(--fg);
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
    height: 100%;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.card-box:hover {
    border-color: rgba(100, 116, 139, 0.2);
}

.card-box h3 {
    font-size: 1.1rem;
    font-weight: 400;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
    color: var(--fg);
    letter-spacing: -0.01em;
}

/* Override input styles inside cards to match design */
.card-box label {
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.01em;
}

.card-box input,
.card-box select,
.card-box textarea,
.card-box .form-control {
    width: 100%;
    padding: 10px 14px;
    border-radius: 6px;
    color: var(--fg);
    font-family: inherit;
    font-size: 14px;
    background-color: var(--bg);
    border: 1px solid var(--line);
    outline: none;
    transition: all 0.15s ease;
}

.card-box input:hover,
.card-box select:hover,
.card-box textarea:hover,
.card-box .form-control:hover {
    border-color: rgba(100, 116, 139, 0.25);
}

.card-box input:focus,
.card-box select:focus,
.card-box textarea:focus,
.card-box .form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.08);
    background-color: var(--bg);
}

.card-box .error-text {
    color: #ff4081;
    font-size: 0.85em;
    margin-top: 4px;
}

.card-box small {
    color: #666;
}

.full-width-card {
    /* Kept for compatibility but not used in 4-col layout */
    grid-column: 1 / -1;
}

button.btn-primary-large {
    background: var(--card) !important;
    border: 1px solid var(--line) !important;
    color: var(--fg) !important;
    padding: 14px 40px !important;
    font-size: 1rem;
    font-weight: 500 !important;
    border-radius: 8px !important;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    text-transform: none;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

button.btn-primary-large:hover {
    background-color: var(--bg) !important;
    border-color: var(--accent) !important;
    color: var(--fg) !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

button.btn-primary-large:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

@media (max-width: 1100px) {
    .simulation-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .simulation-grid {
        grid-template-columns: 1fr;
    }
    .hint-container {
        padding: 10px;
    }
}

.section-separator {
    margin-top: 25px; 
    margin-bottom: 15px; 
    color: var(--accent); 
    border-bottom: 1px solid var(--line); 
    padding-bottom: 5px;
    font-size: 1.1em;
}

/* Tooltip Styles */
.info-tooltip {
    position: relative;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    margin-left: 8px;
    color: var(--muted);
    font-size: 0.9em;
}

.help-icon {
    width: 16px;
    height: 16px;
    display: block;
}
.info-tooltip .tooltip-text {
    visibility: hidden;
    width: 250px;
    background-color: var(--card);
    color: var(--fg);
    text-align: center;
    border-radius: 8px;
    padding: 10px 12px;
    position: absolute;
    z-index: 10;
    bottom: 125%;
    left: 50%;
    margin-left: -125px;
    opacity: 0;
    transition: opacity 0.2s ease;
    font-size: 0.85rem;
    font-weight: normal;
    font-style: normal;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border: 1px solid var(--line);
}
.info-tooltip .tooltip-text::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--card) transparent transparent transparent;
}
.info-tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Forms */
label {
    display: block; 
    font-weight: 400; 
    margin-bottom: 5px;
    color: var(--fg);
    font-size: 0.95em;
}

small {
    color: var(--muted);
    display: block; 
    margin-top: 2px;
}

.error-text {
    color: #ff6b6b; 
    margin-top: 2px;
    font-size: 0.9em;
}

.form-group {
    margin-bottom: 15px;
}

.form-control {
    width: 100%;
    padding: 10px;
    background-color: var(--bg);
    border: 1px solid var(--line);
    color: var(--fg);
    border-radius: 4px;
    box-sizing: border-box;
    font-family: inherit;
}

.form-control:focus {
    border-color: var(--accent);
    outline: none;
}

.form-row {
    display: flex; 
    gap: 20px; 
    flex-wrap: wrap;
}

.form-col {
    flex: 1; 
    min-width: 200px; 
    margin-bottom: 15px;
}

button[type="submit"] {
    padding: 12px 20px;
    font-size: 1.1em;
    font-weight: 500;
    background-color: #ffffff;
    color: #1e293b;
    border: 1px solid rgba(30, 41, 59, 0.1);
    border-radius: 9999px;
    cursor: pointer;
    width: 100%;
    transition: all 0.2s ease;
    font-family: inherit;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

button[type="submit"]:hover {
    background-color: #f8fafc;
    border-color: rgba(30, 41, 59, 0.2);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12);
}

/* Results List */
.result-list {
    list-style: none; 
    padding: 0;
    margin: 0;
}

.result-item {
    padding: 8px 0;
    color: var(--fg);
    display: flex;
    align-items: center;
}

.result-item strong {
    margin-right: 5px;
    font-weight: 400;
}

.result-item.separator {
    margin-bottom: 10px; 
    border-bottom: 1px solid var(--line);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex; 
    justify-content: center; 
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--card);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--line);
}

.modal-header {
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    padding: 1.5rem; 
    border-bottom: 1px solid var(--line);
}

.modal-body { 
    padding: 1.5rem; 
    overflow-y: auto; 
}

.modal-footer {
    display: flex; 
    justify-content: flex-end;
    padding: 1rem 1.5rem; 
    border-top: 1px solid var(--line);
}

.modal-close {
    background: none; 
    border: none; 
    font-size: 1.5rem; 
    cursor: pointer; 
    color: var(--muted);
    padding: 0 8px;
}
.modal-close:hover {
    color: var(--fg);
}

.settings-section { 
    margin-bottom: 2rem; 
}

.settings-section h4 { 
    margin-bottom: 1rem; 
    color: var(--accent); 
    font-size: 1.1em;
}

.modal-subtitle {
    font-size: 0.9em;
    color: var(--muted);
    margin-bottom: 10px;
}

/* Compact form group for IS */
.form-group-compact {
    margin-bottom: 12px;
}
.form-group-compact label {
    margin-bottom: 2px;
}

/* Mode Toggle Switch */
.mode-toggle-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.mode-switch {
    cursor: pointer;
}

.mode-switch input {
    display: none;
}

.mode-switch .mode-btn {
    display: inline-block;
    padding: 10px 24px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--card);
    color: var(--muted);
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s ease;
}

.mode-switch input:checked + .mode-btn {
    background: var(--accent);
    color: #0a0a0a;
    border-color: var(--accent);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(100, 116, 139, 0.2);
}

/* IRPP Grid Layout */
.irpp-grid-header {
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 15px;
    margin-bottom: 8px; 
    font-weight: 400; 
    font-size: 0.9em; 
    color: var(--muted);
}

.irpp-grid {
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 15px;
}

.irpp-cell {
    width: 100%;
}

.btn-primary {
    padding: 10px 20px;
    background-color: #ffffff;
    color: #1e293b;
    border: 1px solid rgba(30, 41, 59, 0.1);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}
.btn-primary:hover {
    background-color: #f8fafc;
    border-color: rgba(30, 41, 59, 0.2);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12);
}
.btn-primary:active {
    transform: translateY(0);
}

/* Objectives */
.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.objective-tag {
    display: inline-flex;
    align-items: center;
    background-color: var(--card);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 0.875rem;
    color: var(--fg);
    gap: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.objective-tag:hover {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.tag-max {
    border-color: var(--accent);
    color: var(--accent);
    background-color: rgba(100, 116, 139, 0.06);
}

.tag-min {
    border-color: #ff6b6b;
    color: #ff6b6b;
    background-color: rgba(255, 107, 107, 0.08);
}

.tag-constraint {
    border-color: #60a5fa;
    color: #60a5fa;
    background-color: rgba(96, 165, 250, 0.08);
}

.tag-icon {
    width: 14px;
    height: 14px;
}

.remove-tag {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 1.1em;
    padding: 0;
    margin-left: 4px;
    opacity: 0.7;
    display: flex;
    align-items: center;
}
.remove-tag:hover {
    opacity: 1;
}

.btn-secondary {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    background-color: var(--card);
    color: var(--fg);
    border: 1px solid var(--line);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    width: 100%;
}
.btn-secondary:hover {
    border-color: var(--accent);
    background-color: rgba(100, 116, 139, 0.04);
}
.btn-secondary:active {
    transform: scale(0.98);
}

/* Dashboard Styles */
.results-dashboard {
    background-color: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    width: 100%;
}

.optimizer-page .results-dashboard {
    margin-top: 40px;
}

.dashboard-title {
    text-align: center;
    margin-bottom: 24px;
    font-size: 1.4rem;
    font-weight: 400;
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 30px;
}

.summary-card {
    /* Styles handled by .card-box */
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.2s ease;
}

.summary-card:hover {
    border-color: rgba(100, 116, 139, 0.3);
}

.card-accent {
    /* Optional: Special styling for the accent card if needed, 
       but keeping it consistent with card-box for now or just text color */
}

.summary-label {
    font-size: 0.75rem;
    color: var(--muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 400;
}

.summary-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--fg);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.card-accent .summary-value {
    color: var(--accent);
}

.summary-subtext {
    font-size: 0.8rem;
    color: var(--muted);
}

/* Details Grid */
.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .details-grid {
        grid-template-columns: 1fr;
    }
}

.detail-panel {
    /* Styles handled by .card-box */
}

.panel-title {
    margin-bottom: 16px;
    font-size: 1.05rem;
    font-weight: 400;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
    color: var(--fg);
    letter-spacing: -0.01em;
}

/* Flow List */
.flow-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.flow-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    padding: 2px 0;
}

.item-label {
    color: var(--muted);
    display: flex;
    align-items: center;
    font-size: 0.85rem;
}

.item-value {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    font-weight: 600;
    color: var(--fg);
    font-family: monospace;
    font-size: 0.95rem;
    letter-spacing: -0.01em;
}

.item-value .component-monthly {
    text-align: right;
}

.text-red .item-value {
    color: #ff6b6b;
}

.flow-subtotal {
    border-top: 1px dashed var(--line);
    padding-top: 10px;
    margin-top: 4px;
    font-weight: 600;
}

.flow-total {
    border-top: 1px solid var(--line);
    padding-top: 10px;
    margin-top: 4px;
    font-weight: 700;
    font-size: 1rem;
}

.flow-final {
    background-color: rgba(100, 116, 139, 0.06);
    padding: 12px;
    border-radius: 8px;
    margin-top: 8px;
    font-weight: 700;
    color: var(--accent);
    border: 1px solid rgba(100, 116, 139, 0.2);
}

.card-accent-text .item-value {
    color: var(--accent);
}

/* Update tooltip position for flow items */
.flow-item .info-tooltip .tooltip-text {
    bottom: 150%;
    left: 0;
    margin-left: -20px;
}

.flow-item .info-tooltip .tooltip-text::after {
    left: 30px;
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn-loading {
    opacity: 0.7;
    cursor: wait !important;
    pointer-events: none;
}

.optimization-overlay {
    position: fixed;
    inset: 0;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(2, 6, 23, 0.72);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    z-index: 2000;
}

.optimization-overlay[hidden] {
    display: none;
}

.optimization-overlay__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding: 24px;
}

.optimization-overlay__text {
    color: var(--text-primary, #f8fafc);
    font-weight: 600;
}

html:not(.theme-dark) .optimization-overlay__text {
    color: #ffffff;
}

/* From Uiverse.io by andrew-manzyk */
.optimization-loader {
    --color-one: #ffbf48;
    --color-two: #be4a1d;
    --color-three: #ffbf4780;
    --color-four: #bf4a1d80;
    --color-five: #ffbf4740;
    --time-animation: 2s;
    --size: 1;
    position: relative;
    border-radius: 50%;
    transform: scale(var(--size));
    box-shadow:
        0 0 25px 0 var(--color-three),
        0 20px 50px 0 var(--color-four);
    animation: colorize calc(var(--time-animation) * 3) ease-in-out infinite;
}

.optimization-loader::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border-top: solid 1px var(--color-one);
    border-bottom: solid 1px var(--color-two);
    background: linear-gradient(180deg, var(--color-five), var(--color-four));
    box-shadow:
        inset 0 10px 10px 0 var(--color-three),
        inset 0 -10px 10px 0 var(--color-four);
}

.optimization-loader__box {
    width: 100px;
    height: 100px;
    background: linear-gradient(180deg, var(--color-one) 30%, var(--color-two) 70%);
    mask: url(#clipping);
    -webkit-mask: url(#clipping);
}

.optimization-loader svg {
    position: absolute;
}

.optimization-loader svg #clipping {
    filter: contrast(15);
    animation: roundness calc(var(--time-animation) / 2) linear infinite;
}

.optimization-loader svg #clipping polygon {
    filter: blur(7px);
}

.optimization-loader svg #clipping polygon:nth-child(1) {
    transform-origin: 75% 25%;
    transform: rotate(90deg);
}

.optimization-loader svg #clipping polygon:nth-child(2) {
    transform-origin: 50% 50%;
    animation: rotation var(--time-animation) linear infinite reverse;
}

.optimization-loader svg #clipping polygon:nth-child(3) {
    transform-origin: 50% 60%;
    animation: rotation var(--time-animation) linear infinite;
    animation-delay: calc(var(--time-animation) / -3);
}

.optimization-loader svg #clipping polygon:nth-child(4) {
    transform-origin: 40% 40%;
    animation: rotation var(--time-animation) linear infinite reverse;
}

.optimization-loader svg #clipping polygon:nth-child(5) {
    transform-origin: 40% 40%;
    animation: rotation var(--time-animation) linear infinite reverse;
    animation-delay: calc(var(--time-animation) / -2);
}

.optimization-loader svg #clipping polygon:nth-child(6) {
    transform-origin: 60% 40%;
    animation: rotation var(--time-animation) linear infinite;
}

.optimization-loader svg #clipping polygon:nth-child(7) {
    transform-origin: 60% 40%;
    animation: rotation var(--time-animation) linear infinite;
    animation-delay: calc(var(--time-animation) / -1.5);
}

@keyframes rotation {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes roundness {
    0% { filter: contrast(15); }
    20% { filter: contrast(3); }
    40% { filter: contrast(3); }
    60% { filter: contrast(15); }
    100% { filter: contrast(15); }
}

@keyframes colorize {
    0% { filter: hue-rotate(0deg); }
    20% { filter: hue-rotate(-30deg); }
    40% { filter: hue-rotate(-60deg); }
    60% { filter: hue-rotate(-90deg); }
    80% { filter: hue-rotate(-45deg); }
    100% { filter: hue-rotate(0deg); }
}

/* Constraint Rows (New UX) */
.constraint-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--card);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 10px;
    flex-wrap: wrap;
    transition: all 0.2s ease;
}

.constraint-row:hover {
    border-color: var(--accent);
}

.constraint-row .label-col {
    font-weight: 500;
    min-width: 150px;
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
}

.constraint-row .controls-col {
    display: flex;
    align-items: center;
    gap: 10px;
}

.constraint-row select, .constraint-row input {
    padding: 8px 12px;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--fg);
    border-radius: 6px;
    font-size: 0.9em;
    transition: all 0.15s ease;
}

.constraint-row select:hover, .constraint-row input:hover {
    border-color: rgba(100, 116, 139, 0.25);
}

.constraint-row select:focus, .constraint-row input:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.08);
}

.constraint-row input {
    width: 100px;
}

.constraint-row .remove-btn {
    margin-left: 10px;
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font-size: 1.2em;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s, background-color 0.2s;
}

.constraint-row .remove-btn:hover {
    color: #ff6b6b;
    background-color: rgba(255, 107, 107, 0.1);
}

/* Collapsible Sections */
.collapsible-header {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: color 0.2s;
}

.collapsible-header:hover {
    opacity: 0.8;
}

.collapsible-header .chevron-icon {
    transition: transform 0.3s ease;
    width: 20px;
    height: 20px;
    color: var(--accent);
}

.collapsible-header.collapsed .chevron-icon {
    transform: rotate(-90deg);
}

/* When collapsed, content is hidden via JS inline style, but we can set defaults if needed */
.collapsible-content {
    /* transition: all 0.3s ease;  - Height transition is tricky with auto height, skipping for now */
}


/* Modal / Alert Popup */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--card);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 24px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--line);
    padding-bottom: 12px;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--fg);
}

.modal-close {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    padding: 4px;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--accent);
}

.modal-body {
    color: var(--fg);
    margin-bottom: 24px;
    line-height: 1.5;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
}

.modal-btn {
    background-color: #3b82f6;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}

.modal-btn:hover {
    background-color: #2563eb;
}

/* Buy Credits Modal Styles */
.credits-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.credit-option {
    background: var(--bg);
    border: 2px solid var(--line);
    border-radius: 8px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.credit-option:hover {
    border-color: var(--accent);
    background: rgba(100, 116, 139, 0.05);
    transform: translateY(-2px);
}

.credit-option:active {
    transform: translateY(0);
}

.credit-quantity {
    font-size: 14px;
    font-weight: 600;
    color: var(--fg);
}

.credit-amount {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
}

.credit-price {
    font-size: 14px;
    color: var(--muted);
}

/* Carousel Navigation Styles */
.solution-carousel-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
    padding: 12px 16px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.carousel-btn {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--fg);
    transition: all 0.2s ease;
    padding: 0;
}

.carousel-btn:hover:not(.disabled) {
    background: rgba(100, 116, 139, 0.08);
    border-color: var(--accent);
    color: var(--accent);
    transform: scale(1.05);
}

.carousel-btn:active:not(.disabled) {
    transform: scale(0.98);
}

.carousel-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    color: var(--muted);
    background: var(--card);
}

.solution-info {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.solution-counter {
    font-size: 0.9rem;
    color: var(--fg);
    font-weight: 400;
    letter-spacing: 0.3px;
}

.solution-counter span {
    color: var(--accent);
    font-weight: 400;
}

.solution-metrics {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--muted);
}

.metric-item {
    display: inline-flex;
    gap: 4px;
}

.metric-label {
    color: var(--muted);
}

.metric-value {
    color: var(--fg);
    font-weight: 600;
    font-family: monospace;
}

.metric-separator {
    color: #414141;
}

@media (max-width: 768px) {
    .solution-carousel-container {
        gap: 16px;
        padding: 15px;
    }

    .carousel-btn {
        width: 36px;
        height: 36px;
    }

    .solution-metrics {
        flex-direction: column;
        gap: 4px;
    }

    .metric-separator {
        display: none;
    }
}

/* Action Sidebar - Sticky at bottom of form */
.action-sidebar {
    position: sticky;
    bottom: 0;
    z-index: 45;
    background: var(--bg);
    border-top: 1px solid var(--line);
    padding: 16px 0;
    margin-top: 30px;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.optimization-detail {
    color: #64748b;
    font-style: italic;
    font-size: 0.95rem;
    text-align: center;
}

.btn-cta-floating {
    display: inline-flex !important;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: #ffffff;
    color: #1e293b;
    border: 1px solid rgba(30, 41, 59, 0.1);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.2s ease;
    width: fit-content !important;
    max-width: fit-content !important;
}

.btn-cta-floating:hover {
    background: #f8fafc;
    border-color: rgba(30, 41, 59, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.btn-cta-floating:active {
    transform: translateY(0);
}

.btn-cta-floating svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .action-sidebar {
        padding: 12px 0;
        margin-top: 20px;
    }

    .btn-cta-floating {
        padding: 14px 28px;
        font-size: 0.95rem;
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .btn-cta-floating svg {
        width: 18px;
        height: 18px;
    }
}

.component-label {
    font-size: 0.65rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.component-monthly {
    font-size: 0.75rem;
    color: var(--muted);
    font-weight: 400;
}

/* TRN Section */
.trn-section {
    margin-top: 24px;
    padding: 20px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
}

.trn-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.trn-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--fg);
    display: flex;
    align-items: center;
    gap: 8px;
}

.trn-value {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--accent);
}

.trn-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.trn-legend-item {
    display: grid;
    grid-template-columns: 30px 80px 100px 1fr;
    gap: 12px;
    align-items: center;
    padding: 10px 12px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 8px;
    opacity: 0.5;
    transition: all 0.2s ease;
}

.trn-legend-item.active {
    opacity: 1;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.03);
}

.trn-icon {
    font-size: 1.2rem;
}

.trn-range {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--fg);
}

.trn-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--fg);
}

.trn-desc {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.4;
}

@media (max-width: 768px) {
    .trn-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .trn-value {
        font-size: 1.5rem;
    }

    .trn-legend-item {
        grid-template-columns: 30px 70px 1fr;
        gap: 8px;
        padding: 8px 10px;
    }

    .trn-label {
        display: none;
    }

    .trn-desc {
        font-size: 0.8rem;
        grid-column: 1 / -1;
    }
}

/* Cash Flow Container */
.cash-flow-container {
    margin-bottom: 20px;
}

.optimizer-page .cash-flow-container {
    margin-top: 40px;
}

.cash-flow-title {
    font-size: 1.3rem;
    font-weight: 500;
    margin: 0 0 8px 0;
    color: var(--fg);
}

.cash-flow-subtitle {
    font-size: 0.9rem;
    color: var(--muted);
    margin: 0 0 24px 0;
}

/* Sankey Diagram Container */
.sankey-container {
    min-height: 400px;
    width: 100%;
    margin-bottom: 24px;
}

@media (max-width: 768px) {
    .cash-flow-container {
        display: none; /* Hide entire Sankey section on mobile - not optimal for small screens */
    }
}

/* Flow Details (Collapsible) */
.flow-details {
    margin-top: 20px;
    border-top: 1px solid var(--line);
    padding-top: 16px;
}

.flow-details-toggle {
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 500;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    transition: color 0.2s ease;
}

.flow-details-toggle:hover {
    color: var(--accent);
}

.flow-details-toggle::before {
    content: "▶";
    display: inline-block;
    transition: transform 0.2s ease;
    font-size: 0.8rem;
}

.flow-details[open] .flow-details-toggle::before {
    transform: rotate(90deg);
}

.flow-details-content {
    margin-top: 16px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.flow-details-content--details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

@media (max-width: 1200px) {
    .flow-details-content--details {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .flow-details-content--details {
        grid-template-columns: 1fr;
    }
}

/* When we remove the "Détail des calculs" title, remove the extra top margin so
   Entreprise/Entrepreneur headers sit higher in the card. */
.flow-details-content--compact-header {
    margin-top: 0;
}

.flow-section {
    background: var(--bg);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--line);
}

/* Optimizer — details block: improve visual hierarchy + scannability */
.optimizer-page .flow-details-content--details {
    gap: 14px;
}

.optimizer-page .flow-section--details:not(.opt-card) {
    background: rgba(15, 23, 42, 0.18);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 12px;
    padding: 14px;
}

.optimizer-page .flow-section--details.flow-section--actions {
    position: relative;
    padding-top: 10px;
    background: rgba(96, 165, 250, 0.12);
    border-color: rgba(96, 165, 250, 0.22);
}

.optimizer-page .flow-section--details.flow-section--actions::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 3px;
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(96, 165, 250, 0.85), rgba(192, 132, 252, 0.65));
}

.optimizer-page .flow-section--details.flow-section--actions .flow-section-title {
    margin: 0 0 8px 0;
    padding-bottom: 6px;
    border-bottom-color: rgba(96, 165, 250, 0.22);
}

.optimizer-page .flow-section--details .flow-section-title {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0 0 10px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.optimizer-page .flow-section--details .flow-list {
    gap: 6px;
}

.optimizer-page .flow-subsection {
    margin-top: 10px;
    padding-top: 10px;
    position: relative;
}

.optimizer-page .flow-subsection::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.18), transparent);
    opacity: 0.9;
}

.optimizer-page .flow-subsection-title {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 8px 0;
    font-size: 0.98rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--fg);
}

.optimizer-page .flow-section--details .flow-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: baseline;
    padding: 3px 0;
}

.optimizer-page .flow-section--details .item-label {
    font-size: 0.87rem;
    line-height: 1.2;
}

.optimizer-page .flow-section--details .item-value {
    font-family: inherit;
    font-variant-numeric: tabular-nums;
    font-size: 0.98rem;
}

.optimizer-page .flow-section--details .component-monthly {
    margin-top: 1px;
    font-size: 0.78rem;
    color: var(--muted);
}

.optimizer-page .flow-section--details .flow-item--sentence {
    grid-template-columns: 1fr;
    align-items: start;
    padding: 2px 0;
}

.optimizer-page .flow-section--details .decision-sentence {
    color: var(--fg);
    font-size: 0.88rem;
    line-height: 1.2;
}

.optimizer-page .flow-section--details .decision-amount {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    color: var(--accent);
}

.optimizer-page .flow-section--details .flow-total {
    background: rgba(96, 165, 250, 0.08);
    border: 1px solid rgba(96, 165, 250, 0.18);
    border-radius: 10px;
    padding: 10px 10px;
    margin-top: 10px;
}

.optimizer-page .flow-section--details .text-red.flow-total {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.2);
}

.flow-section--full {
    grid-column: 1 / -1;
}

/* Minimal look for Entreprise / Entrepreneur sections (no background) */
.flow-section--no-bg {
    background: transparent;
    border: none;
    padding: 0;
}

.flow-section-title {
    font-size: 1rem;
    font-weight: 500;
    margin: 0 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
    color: var(--fg);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.flow-section--no-bg .flow-section-title {
    border-bottom: none;
    padding-bottom: 0;
    /* Create more breathing room between header and the first line item */
    margin-bottom: 18px;
}

.flow-section-title__icon {
    width: 18px;
    height: 18px;
    display: inline-block;
}

/* Dark mode: improve readability of the Entreprise/Entrepreneur icons */
.theme-dark .flow-section-title__icon {
    filter: brightness(0) invert(1) drop-shadow(0 0 0.6px rgba(255, 255, 255, 0.55));
    opacity: 0.95;
}

@media (max-width: 768px) {
    .flow-details-content {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* Results Footer - Inline Navigation */
.results-footer {
    margin: 20px 0;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    display: flex;
    justify-content: center;
}

.results-footer--floating {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    bottom: calc(16px + env(safe-area-inset-bottom));
    z-index: 90;
    margin: 0;
    width: auto;
    max-width: calc(100vw - 24px);
}

.solution-navigation {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 10px 18px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.results-footer--floating .solution-navigation {
    opacity: 0.55;
    transition: opacity 0.2s ease, box-shadow 0.2s ease;
}

.results-footer--floating .solution-navigation:hover,
.results-footer--floating .solution-navigation:focus-within {
    opacity: 0.55;
}

.results-footer--floating .solution-navigation:hover {
    opacity: 1;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}

.results-footer--floating .nav-btn:focus-visible {
    outline: none;
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22);
}

.nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 50%;
    color: var(--fg);
    cursor: pointer;
    transition: all 0.2s ease;
    width: 36px;
    height: 36px;
}

.nav-btn:hover:not(.disabled) {
    background: rgba(100, 116, 139, 0.08);
    border-color: var(--accent);
    color: var(--accent);
}

.nav-btn:active:not(.disabled) {
    transform: scale(0.95);
}

.nav-btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: var(--card);
}

.nav-btn svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.solution-info {
    flex: 0 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 120px;
}

.solution-label {
    font-size: 0.75rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 500;
}

.solution-counter {
    font-size: 1.2rem;
    color: var(--fg);
    font-weight: 700;
}

.solution-counter span {
    color: var(--accent);
}

.info-icon {
    font-size: 1.3rem;
}

.info-detail {
    color: #000;
    font-weight: 600;
}

@media (max-width: 768px) {
    .results-footer {
        margin: 16px 0;
    }

    .results-footer--floating {
        bottom: calc(12px + env(safe-area-inset-bottom));
        margin: 0;
        max-width: calc(100vw - 16px);
    }

    .solution-navigation {
        gap: 8px;
        padding: 8px 14px;
    }

    .nav-btn {
        width: 32px;
        height: 32px;
    }

    .nav-btn svg {
        width: 16px;
        height: 16px;
    }

    .solution-info {
        min-width: 80px;
    }

    .solution-label {
        font-size: 0.65rem;
    }

    .solution-counter {
        font-size: 0.9rem;
    }
}

/* Unlock Section Styles */
.results-locked {
    position: relative;
}

.results-locked > *:not(.unlock-section) {
    filter: blur(8px);
    pointer-events: none;
    user-select: none;
}

.unlock-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
}

.unlock-message {
    flex: 1;
}

.unlock-message p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--fg);
}

.unlock-message strong {
    color: var(--accent);
    font-weight: 600;
}

.unlock-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.btn-unlock-mini,
.btn-subscribe-mini {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-unlock-mini {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.btn-unlock-mini:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-subscribe-mini {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
}

.btn-subscribe-mini:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.btn-unlock-mini .btn-text,
.btn-subscribe-mini .btn-text {
    font-weight: 500;
    color: white;
    font-size: 0.85rem;
}

.btn-unlock-mini .btn-price {
    font-weight: 500;
    font-size: 0.95rem;
    color: white;
}

.btn-subscribe-mini .btn-price {
    font-weight: 500;
    font-size: 0.95rem;
    color: white;
}

.credits-display {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
    padding: 4px 10px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid #f59e0b;
    border-radius: 10px;
    font-size: 0.85rem;
    color: #f59e0b;
}

.credits-display svg {
    flex-shrink: 0;
}

/* Mobile Responsive for Unlock Section */
@media (max-width: 768px) {
    .unlock-section {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
        padding: 16px;
    }

    .unlock-message p {
        font-size: 0.9rem;
        text-align: left;
    }

    .unlock-actions {
        width: 100%;
        justify-content: stretch;
    }

    .btn-unlock-mini,
    .btn-subscribe-mini {
        flex: 1;
        padding: 10px 16px;
    }
}

/* Toggle Switch Styles */
.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.toggle-text {
    font-weight: 500;
    flex: 1 1 auto;
    min-width: 0;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    flex: 0 0 48px;
}

.patrimoine-container--stacked {
    margin-top: 16px;
}

.toggle-switch input[type="checkbox"] {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #cbd5e1;
    transition: 0.3s;
    border-radius: 26px;
    border: 2px solid #94a3b8;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: #ffffff;
    transition: 0.3s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input[type="checkbox"]:checked + .toggle-slider {
    background-color: #22C55E;
    border-color: #16a34a;
}

.toggle-switch input[type="checkbox"]:checked + .toggle-slider:before {
    transform: translateX(22px);
}

.toggle-switch input[type="checkbox"]:focus + .toggle-slider {
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.toggle-switch input[type="checkbox"]:disabled + .toggle-slider {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Landing page */
.landing-page {
    position: relative;
    overflow-x: hidden;
}

.landing-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(1100px 780px at 15% 10%, rgba(96, 165, 250, 0.22), transparent 60%),
        radial-gradient(900px 700px at 90% 15%, rgba(192, 132, 252, 0.20), transparent 60%),
        radial-gradient(950px 720px at 55% 105%, rgba(110, 231, 183, 0.16), transparent 60%),
        linear-gradient(180deg, #0b1220 0%, #050814 100%);
}

.landing-bg::before {
    content: "";
    position: absolute;
    inset: -20% -10% -10% -10%;
    pointer-events: none;
    background:
        radial-gradient(closest-side at 30% 35%, rgba(248, 250, 252, 0.05), transparent 60%),
        radial-gradient(closest-side at 70% 55%, rgba(248, 250, 252, 0.035), transparent 60%);
    opacity: 0.9;
}

.landing-header,
main {
    position: relative;
    z-index: 1;
}

.landing-hero {
    text-align: center;
    padding: clamp(6rem, 10vw, 8rem) 1rem 4.5rem;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    isolation: isolate;
}

.landing-hero::before {
    content: "";
    position: absolute;
    inset: -120px -80px -40px -80px;
    pointer-events: none;
    background:
        radial-gradient(closest-side at 35% 35%, rgba(96, 165, 250, 0.18), transparent 70%),
        radial-gradient(closest-side at 65% 35%, rgba(192, 132, 252, 0.16), transparent 70%),
        radial-gradient(closest-side at 50% 70%, rgba(110, 231, 183, 0.12), transparent 70%);
    filter: blur(0.2px);
    z-index: -1;
}

.landing-hero h1 {
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(2.2rem, 5.8vw, 3.5rem);
    font-weight: 600;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.landing-hero p {
    font-size: clamp(1.05rem, 2.4vw, 1.25rem);
    color: var(--text-secondary, #94a3b8);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons--spacious {
    margin-top: 0.75rem;
}

.landing-hero-points {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2rem;
    flex-wrap: wrap;
    color: var(--text-secondary, #94a3b8);
}

.landing-hero-points li {
    padding: 0.5rem 0.9rem;
    border: 1px solid var(--border-color, #334155);
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.06);
    font-size: 0.95rem;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(226, 232, 240, 0.92));
    color: #1e293b;
    padding: 1rem 2.5rem;
    border-radius: 12px;
    font-weight: 500;
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
    font-size: 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

.cta-button--small {
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
}

.cta-button--secondary {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: none;
}

.cta-button--secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.45);
}

.cta-button:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(241, 245, 249, 0.95));
    color: #1e293b;
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
}

.cta-button:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22), 0 12px 28px rgba(0, 0, 0, 0.28);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 2rem auto 6rem;
    padding: 0 1rem;
}

.feature-card {
    background: rgba(30, 41, 59, 0.56);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.14);
    text-align: center;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
    transition: border-color 0.18s ease, transform 0.18s ease;
}

.feature-card:hover {
    border-color: rgba(226, 232, 240, 0.18);
    transform: translateY(-2px);
}

.feature-icon {
    color: var(--text-primary, #f8fafc);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.feature-icon-svg {
    width: 56px;
    height: 56px;
    display: block;
    background-color: currentColor;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
    -webkit-mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
    mask-size: contain;
}

.feature-icon-svg--genetic-data {
    -webkit-mask-image: url("../icons/genetic-data-svgrepo-com.svg");
    mask-image: url("../icons/genetic-data-svgrepo-com.svg");
}

.feature-icon-svg--double-helix {
    -webkit-mask-image: url("../icons/double-helix-svgrepo-com.svg");
    mask-image: url("../icons/double-helix-svgrepo-com.svg");
}

.feature-icon-svg--gene-sequencing {
    -webkit-mask-image: url("../icons/gene-sequencing-svgrepo-com.svg");
    mask-image: url("../icons/gene-sequencing-svgrepo-com.svg");
}

.features-grid .feature-card:nth-child(1) .feature-icon { color: #6ee7b7; }
.features-grid .feature-card:nth-child(2) .feature-icon { color: #60a5fa; }
.features-grid .feature-card:nth-child(3) .feature-icon { color: #c084fc; }

.feature-title {
    font-weight: 600;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary, #f8fafc);
    font-family: "Space Grotesk", sans-serif;
}

.feature-desc {
    color: var(--text-secondary, #94a3b8);
    font-size: 1rem;
    line-height: 1.5;
}

.audience-section {
    text-align: center;
    padding: 6rem 1rem;
    background: linear-gradient(180deg, rgba(148, 163, 184, 0.05), transparent 65%);
    position: relative;
    isolation: isolate;
}

.audience-section::before {
    content: "";
    position: absolute;
    inset: -120px 0 auto 0;
    height: 220px;
    background: radial-gradient(closest-side at 50% 100%, rgba(148, 163, 184, 0.10), transparent);
    opacity: 0.55;
    z-index: -1;
}

.audience-inner {
    max-width: 700px;
    margin: 0 auto;
}

.audience-title {
    font-family: "Space Grotesk", sans-serif;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.audience-text {
    color: var(--text-secondary, #94a3b8);
    font-size: 1.15rem;
    line-height: 1.6;
}

.landing-section {
    padding: 5.5rem 1rem;
    border-top: none;
    position: relative;
    isolation: isolate;
}

.landing-section::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -120px;
    height: 220px;
    pointer-events: none;
    background: radial-gradient(closest-side at 50% 100%, rgba(148, 163, 184, 0.10), transparent);
    opacity: 0.45;
    z-index: -1;
}

.landing-section--cta {
    background: linear-gradient(to bottom, rgba(100, 116, 139, 0.04), transparent);
}

.landing-section-inner {
    max-width: 900px;
    margin: 0 auto 2.5rem;
    text-align: center;
}

.landing-section-title {
    font-family: "Space Grotesk", sans-serif;
    font-size: 2.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
    color: #ffffff;
}

.landing-section-lead {
    color: var(--text-secondary, #94a3b8);
    font-size: 1.15rem;
    line-height: 1.6;
}

.landing-section--split {
    padding: 5.5rem 1rem;
}

.landing-split {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
    align-items: center;
}

.landing-split--reverse .landing-split-text {
    order: 2;
}

.landing-split--reverse .landing-split-visual {
    order: 1;
}

.landing-split-title {
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.7rem, 3.2vw, 2.2rem);
    margin: 0 0 1.2rem;
    font-weight: 600;
    color: #ffffff;
}

.landing-keyline {
    margin-top: 1.5rem;
    padding: 1rem 1.1rem;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(2, 6, 23, 0.24);
    color: var(--text-primary, #f8fafc);
    font-size: 1.05rem;
    line-height: 1.55;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

.landing-visual-card {
    background: rgba(30, 41, 59, 0.56);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
    color: var(--text-secondary, #94a3b8);
}

.landing-visual-card--transparent {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    backdrop-filter: none;
}

.landing-visual-card--transparent .landing-loop-node,
.landing-visual-card--transparent .landing-stacked-card {
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
}

.landing-visual-card--transparent .landing-loop-node {
    border-color: rgba(148, 163, 184, 0.22);
}

.landing-visual-card--transparent .landing-stacked-card {
    border-color: rgba(148, 163, 184, 0.20);
}

.landing-visual-icon {
    width: 22px;
    height: 22px;
    display: inline-block;
    background-color: currentColor;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
    -webkit-mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
    mask-size: contain;
    margin-right: 0.55rem;
    color: #e2e8f0;
}

.landing-visual-icon--constraints {
    -webkit-mask-image: url("../icons/doc-constraints.svg");
    mask-image: url("../icons/doc-constraints.svg");
}

.landing-visual-icon--income {
    -webkit-mask-image: url("../icons/doc-income.svg");
    mask-image: url("../icons/doc-income.svg");
}

.landing-visual-icon--optimizer {
    -webkit-mask-image: url("../icons/doc-optimizer.svg");
    mask-image: url("../icons/doc-optimizer.svg");
}

.landing-visual-icon--refresh {
    -webkit-mask-image: url("../icons/doc-refresh.svg");
    mask-image: url("../icons/doc-refresh.svg");
}

.landing-visual-icon--growth {
    -webkit-mask-image: url("../icons/doc-growth.svg");
    mask-image: url("../icons/doc-growth.svg");
}

.landing-visual-icon--objective {
    -webkit-mask-image: url("../icons/doc-objective.svg");
    mask-image: url("../icons/doc-objective.svg");
}

.landing-visual-icon--crr {
    -webkit-mask-image: url("../icons/doc-crr.svg");
    mask-image: url("../icons/doc-crr.svg");
}

.landing-loop-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    flex-wrap: nowrap;
}

@media (max-width: 640px) {
    .landing-loop-diagram {
        flex-wrap: wrap;
    }
}

.landing-loop-node {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    background: rgba(2, 6, 23, 0.22);
    color: var(--text-primary, #f8fafc);
    font-weight: 500;
    white-space: nowrap;
}

.landing-loop-arrow {
    color: rgba(148, 163, 184, 0.9);
    font-size: 1.2rem;
    line-height: 1;
}

.landing-flow-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: nowrap;
    gap: 0.75rem;
}

@media (max-width: 640px) {
    .landing-flow-diagram {
        flex-wrap: wrap;
    }
}

.landing-flow-inputs {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.landing-pill {
    padding: 0.55rem 0.9rem;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    background: rgba(2, 6, 23, 0.18);
    color: var(--text-primary, #f8fafc);
    font-weight: 500;
    text-align: center;
}

.landing-flow-arrow {
    color: rgba(148, 163, 184, 0.9);
    font-size: 1.2rem;
    line-height: 1;
    padding: 0.25rem 0.25rem;
}

.landing-flow-core,
.landing-flow-output {
    padding: 0.8rem 1.1rem;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    background: rgba(2, 6, 23, 0.22);
    color: var(--text-primary, #f8fafc);
    font-weight: 600;
    text-align: center;
}

.landing-flow-output {
    background: rgba(96, 165, 250, 0.10);
    border-color: rgba(96, 165, 250, 0.22);
}

.landing-flow-diagram .landing-pill,
.landing-flow-diagram .landing-flow-output {
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
}

.landing-timeline {
    list-style: none;
    margin: 0;
    padding: 0;
    position: relative;
}

.landing-timeline::before {
    content: "";
    position: absolute;
    left: 14px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: rgba(148, 163, 184, 0.22);
}

.landing-timeline-item {
    position: relative;
    padding-left: 2.2rem;
    margin: 0.95rem 0;
    color: var(--text-primary, #f8fafc);
    font-weight: 500;
    display: flex;
    align-items: center;
    min-height: 28px;
}

.landing-timeline-item::before {
    content: "";
    position: absolute;
    left: 8px;
    width: 14px;
    height: 14px;
    border-radius: 999px;
    background: rgba(96, 165, 250, 0.30);
    border: 1px solid rgba(96, 165, 250, 0.38);
}

.landing-timeline-item .landing-visual-icon {
    color: rgba(226, 232, 240, 0.95);
}

.landing-solution-chart-title {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    color: var(--text-primary, #f8fafc);
    margin-bottom: 1.1rem;
}

.landing-solution-chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 0.55rem;
    height: 130px;
}

.landing-solution-chart-bar {
    flex: 1;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.14);
    background: rgba(148, 163, 184, 0.10);
}

.landing-solution-chart-bar--rejected {
    height: 100%;
    background: rgba(148, 163, 184, 0.10);
}

.landing-solution-chart-bar--kept {
    height: 35%;
    background: rgba(110, 231, 183, 0.16);
    border-color: rgba(110, 231, 183, 0.28);
}

.landing-solution-chart-legend {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 1rem;
    color: var(--text-secondary, #94a3b8);
    font-size: 0.95rem;
}

.landing-solution-chart-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    display: inline-block;
}

.landing-solution-chart-dot--rejected {
    background: rgba(148, 163, 184, 0.38);
}

.landing-solution-chart-dot--kept {
    background: rgba(110, 231, 183, 0.55);
}

.landing-stacked-cards {
    position: relative;
    height: 175px;
}

.landing-stacked-card {
    position: absolute;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    padding: 0.95rem 1.1rem;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    background: rgba(2, 6, 23, 0.22);
    color: var(--text-primary, #f8fafc);
    box-shadow: 0 18px 46px rgba(0, 0, 0, 0.22);
}

.landing-stacked-card:nth-child(1) {
    transform: translateY(0) rotate(-1deg);
    z-index: 3;
}

.landing-stacked-card:nth-child(2) {
    transform: translateY(44px) rotate(1deg);
    z-index: 2;
    opacity: 0.98;
}

.landing-stacked-card:nth-child(3) {
    transform: translateY(88px) rotate(-0.5deg);
    z-index: 1;
    opacity: 0.96;
}

@media (max-width: 860px) {
    .landing-split {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .landing-split--reverse .landing-split-text,
    .landing-split--reverse .landing-split-visual {
        order: initial;
    }

    .landing-visual-card {
        padding: 1.6rem;
    }
}

.landing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
}

.landing-card {
    background: rgba(30, 41, 59, 0.56);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.14);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
}

.landing-card-title {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    color: var(--text-primary, #f8fafc);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.landing-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.landing-list li {
    position: relative;
    padding-left: 1.1rem;
    margin: 0.7rem 0;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.5;
}

.landing-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    top: 0;
    color: #ffffff;
    opacity: 0.75;
}

.landing-list--center {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem;
}

.landing-use-cases {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    gap: 0.9rem;
}

.landing-use-case {
    margin: 0;
    padding: 1.05rem 1.25rem;
    background: rgba(30, 41, 59, 0.56);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 16px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
    color: var(--text-secondary, #94a3b8);
    line-height: 1.6;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
}

.pricing-card {
    background: rgba(30, 41, 59, 0.56);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 16px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pricing-card--featured {
    border-color: rgba(110, 231, 183, 0.26);
    box-shadow: 0 18px 46px rgba(0, 0, 0, 0.30);
}

.pricing-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
}

.pricing-card-title {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    color: var(--text-primary, #f8fafc);
    font-size: 1.25rem;
    margin: 0;
}

.pricing-price {
    text-align: right;
}

.pricing-price-main {
    color: #ffffff;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.pricing-price-sub {
    margin-top: 0.25rem;
    color: var(--text-secondary, #94a3b8);
    font-size: 0.95rem;
}

.pricing-features {
    display: grid;
    gap: 0.6rem;
}

.pricing-feature {
    margin: 0;
    padding-left: 0;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.55;
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
}

.pricing-feature::before {
    content: none;
}

.pricing-feature-icon {
    flex: 0 0 auto;
    margin-top: 0.15rem;
    /* Default (light mode): keep the original SVG color so it stays visible. */
    filter: none;
    opacity: 0.9;
}

/* Dark mode: make the icon visible on dark backgrounds */
.theme-dark .pricing-feature-icon {
    filter: brightness(0) invert(1);
    opacity: 0.82;
}

.pricing-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.6rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: rgba(248, 250, 252, 0.92);
    background: rgba(110, 231, 183, 0.14);
    border: 1px solid rgba(110, 231, 183, 0.22);
    margin-bottom: 0.5rem;
    width: fit-content;
}

/* Keep header alignment consistent between pricing cards */
.pricing-badge--placeholder {
    visibility: hidden;
}

.pricing-who {
    border-top: 1px solid rgba(148, 163, 184, 0.12);
    padding-top: 1rem;
    display: grid;
    gap: 0.35rem;
}

.pricing-who-title {
    color: rgba(248, 250, 252, 0.92);
    font-weight: 600;
    font-size: 0.95rem;
}

.pricing-who-desc {
    margin: 0;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.55;
}

.pricing-actions {
    margin-top: auto;
    display: flex;
}

.pricing-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.9rem 1.1rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    color: #1e293b;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(226, 232, 240, 0.92));
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.pricing-button:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(241, 245, 249, 0.95));
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.26);
}

.pricing-button:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22), 0 12px 28px rgba(0, 0, 0, 0.26);
}

.pricing-button--featured {
    background: linear-gradient(135deg, rgba(110, 231, 183, 0.92), rgba(96, 165, 250, 0.90));
    color: #061018;
    border-color: rgba(110, 231, 183, 0.22);
}

.pricing-button--featured:hover {
    background: linear-gradient(135deg, rgba(110, 231, 183, 0.97), rgba(96, 165, 250, 0.94));
}

.landing-section--cta .landing-section-lead {
    margin: 0.75rem auto 2.25rem;
    max-width: 760px;
}

.landing-steps {
    list-style: none;
    margin: 0 auto;
    padding: 0 1rem;
    max-width: 900px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.landing-step {
    background: rgba(30, 41, 59, 0.56);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 16px;
    padding: 1.6rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
}

.landing-step-title {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    color: var(--text-primary, #f8fafc);
    margin-bottom: 0.75rem;
}

.landing-step-desc {
    color: var(--text-secondary, #94a3b8);
    line-height: 1.55;
}

.landing-faq {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    gap: 0.75rem;
}

.landing-faq-item {
    background: rgba(30, 41, 59, 0.56);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
}

@media (prefers-reduced-motion: reduce) {
    .cta-button,
    .feature-card {
        transition: none;
        transform: none;
    }
}

.landing-faq-item summary {
    list-style: none;
}

.landing-faq-item summary::-webkit-details-marker {
    display: none;
}

.landing-faq-question {
    padding: 1.1rem 1.4rem;
    cursor: pointer;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    color: var(--text-primary, #f8fafc);
}

.landing-faq-answer {
    padding: 0 1.4rem 1.2rem;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.6;
}

.landing-faq-answer ul {
    margin: 0.75rem 0 0.25rem;
    padding-left: 1.25rem;
    list-style: disc;
    list-style-position: outside;
}

.landing-faq-answer li {
    margin: 0.35rem 0;
}

.landing-seo {
    margin-top: 2rem;
    color: var(--text-secondary, #94a3b8);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Header overrides */
.landing-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

.landing-logo {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    font-size: 1.5rem;
    color: white;
    text-decoration: none;
}

.landing-header-links {
    display: flex;
    align-items: center;
    gap: 14px;
}

.header-link {
    color: var(--text-secondary, #94a3b8);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.header-link:hover {
    color: white;
}

@media (max-width: 640px) {
    .landing-header {
        position: sticky;
        padding: 0.9rem 1rem;
        padding-left: max(1rem, env(safe-area-inset-left));
        padding-right: max(1rem, env(safe-area-inset-right));
        flex-wrap: wrap;
        gap: 0.75rem;
        background: rgba(11, 18, 32, 0.55);
        border-bottom: 1px solid rgba(148, 163, 184, 0.12);
        backdrop-filter: blur(12px);
    }

    .landing-hero {
        padding: 4.75rem 1rem 3.25rem;
    }

    .landing-hero::before {
        inset: -90px -50px -30px -50px;
    }

    .landing-hero p {
        margin-bottom: 2rem;
    }

    .landing-section {
        padding: 4.25rem 1rem;
    }

    .landing-section-inner {
        margin-bottom: 2rem;
    }

    .cta-buttons {
        gap: 0.85rem;
    }

    .landing-hero .cta-buttons,
    .landing-section--cta .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .landing-hero .cta-buttons .cta-button,
    .landing-section--cta .cta-buttons .cta-button {
        width: 100%;
        max-width: 420px;
        margin-left: auto;
        margin-right: auto;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
        margin: 1.5rem auto 4.5rem;
    }

    .feature-card,
    .landing-card,
    .landing-step {
        padding: 1.6rem;
    }

    .landing-cards,
    .landing-steps {
        grid-template-columns: 1fr;
    }

    .landing-hero-points {
        gap: 0.5rem;
        margin-top: 1.5rem;
    }
}

@media (max-width: 420px) {
    .landing-hero {
        padding: 4.5rem 0.9rem 3rem;
    }

    .landing-section {
        padding: 4rem 0.9rem;
    }

    .landing-hero-points li {
        padding: 0.45rem 0.8rem;
        font-size: 0.92rem;
    }

    .landing-hero .cta-button,
    .landing-section--cta .cta-button {
        padding: 0.95rem 1.4rem;
        font-size: 1.05rem;
    }
}

/* Optimizer page (match landing: soft background + non-brutal separators) */
.optimizer-page {
    position: relative;
    overflow-x: hidden;
    background-color: #F5F7FA;
}

html.theme-dark .optimizer-page {
    background-color: var(--bg);
}

.optimizer-page::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(1100px 780px at 15% 10%, rgba(96, 165, 250, 0.16), transparent 60%),
        radial-gradient(900px 700px at 90% 15%, rgba(192, 132, 252, 0.14), transparent 60%),
        radial-gradient(950px 720px at 55% 105%, rgba(110, 231, 183, 0.12), transparent 60%),
        linear-gradient(180deg, #0b1220 0%, #050814 100%);
}

/* Keep the header above the page content so dropdowns (user menu) don't get covered */
.optimizer-page .hint-container,
.optimizer-page .hint-footer {
    position: relative;
    z-index: 1;
}

.optimizer-page .hint-container {
    padding-bottom: 120px;
}

.optimizer-page .header {
    z-index: 100;
    background: rgba(11, 18, 32, 0.42);
    border-bottom: none;
    box-shadow: none;
    backdrop-filter: blur(12px);
}

.optimizer-page .header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.18), transparent);
    opacity: 0.9;
}

.optimizer-page .card-box {
    background: rgba(30, 41, 59, 0.56);
    border-color: rgba(148, 163, 184, 0.14);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
}

.optimizer-page .trn-section {
    background: rgba(30, 41, 59, 0.56);
    border-color: rgba(148, 163, 184, 0.14);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
    backdrop-filter: blur(12px);
}

.optimizer-page .card-box:hover {
    border-color: rgba(226, 232, 240, 0.18);
}

.optimizer-page .card-box h3 {
    border-bottom: none;
    padding-bottom: 0;
    position: relative;
}

.optimizer-page .card-box h3::after {
    content: "";
    display: block;
    height: 1px;
    margin-top: 12px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.22), transparent);
    opacity: 0.9;
}

/* Optimizer — reduce extra vertical space between "Details de l'optimisation" header and the first section card */
.optimizer-page .calculation-details-container {
    margin-top: 40px;
    gap: 12px;
}

.optimizer-page .calculation-details-container > h3 {
    margin-bottom: 0;
}

.optimizer-page .calculation-details-container .flow-details-content--details {
    margin-top: 0;
}

.optimizer-page .panel-title {
    border-bottom: none;
    padding-bottom: 0;
    position: relative;
}

.optimizer-page .panel-title::after {
    content: "";
    display: block;
    height: 1px;
    margin-top: 10px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.22), transparent);
    opacity: 0.85;
}

.flow-item--divider {
    margin-top: 16px;
    padding-top: 16px;
    position: relative;
}

.optimizer-page .flow-item--divider::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.18), transparent);
    opacity: 0.9;
}

.optimizer-page .flow-subtotal,
.optimizer-page .flow-total {
    border-top: none;
    position: relative;
}

.optimizer-page .flow-subtotal::before,
.optimizer-page .flow-total::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.18), transparent);
    opacity: 0.9;
}

/* Sticky bottom action bar: remove harsh full-width background + separator */
.optimizer-page .action-sidebar {
    background: transparent;
    border-top: none;
    backdrop-filter: none;
}

.optimizer-page .action-sidebar::before {
    content: none;
}

/* Softer footer separator on illustration-like pages */
.landing-page .hint-footer,
.optimizer-page .hint-footer {
    border-top: none;
    position: relative;
    background: linear-gradient(to bottom, rgba(148, 163, 184, 0.05), transparent);
}

.landing-page .hint-footer::before,
.optimizer-page .hint-footer::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(148, 163, 184, 0.18), transparent);
    opacity: 0.9;
}

/* Hint Footer */
.hint-footer {
    margin-top: 32px;
    padding: 20px 16px;
    border-top: 1px solid var(--line);
}

.hint-footer-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.hint-disclaimer {
    margin: 0;
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.4;
}

.hint-disclaimer--page {
    margin-top: 12px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: rgba(100, 116, 139, 0.08);
}

.hint-footer-links {
    display: flex;
    gap: 16px;
}

.hint-footer-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.hint-footer-link:hover {
    text-decoration: underline;
}

/* Legal page */
.legal-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 16px 32px;
}

.legal-section {
    line-height: 1.6;
}

.legal-section h1 {
    margin-top: 0;
    margin-bottom: 12px;
    font-weight: 600;
    font-size: 1.6rem;
}

.legal-section h2 {
    margin-top: 18px;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 1.15rem;
}

.legal-section h3 {
    margin-top: 14px;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 1rem;
}

.legal-section ul {
    margin: 8px 0 12px;
    padding-left: 20px;
}

.legal-section a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    word-break: break-word;
}

.legal-section a:hover {
    text-decoration: underline;
}

.legal-divider {
    border: none;
    border-top: 1px solid var(--line);
    margin: 16px 0;
}

/* Light mode overrides for the Hint landing page */
html:not(.theme-dark) .landing-bg {
    background:
        radial-gradient(1100px 780px at 15% 10%, rgba(96, 165, 250, 0.16), transparent 60%),
        radial-gradient(900px 700px at 90% 15%, rgba(192, 132, 252, 0.14), transparent 60%),
        radial-gradient(950px 720px at 55% 105%, rgba(110, 231, 183, 0.14), transparent 60%),
        linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
}

html:not(.theme-dark) .landing-bg::before {
    background:
        radial-gradient(closest-side at 30% 35%, rgba(15, 23, 42, 0.05), transparent 60%),
        radial-gradient(closest-side at 70% 55%, rgba(15, 23, 42, 0.035), transparent 60%);
}

html:not(.theme-dark) .landing-logo {
    color: var(--text-primary);
}

html:not(.theme-dark) .header-link {
    color: var(--text-secondary);
}

html:not(.theme-dark) .header-link:hover {
    color: var(--text-primary);
}

html:not(.theme-dark) .landing-hero h1 {
    background: none;
    -webkit-text-fill-color: var(--text-primary);
    color: var(--text-primary);
}

html:not(.theme-dark) .cta-button--secondary {
    color: var(--text-primary);
    border-color: rgba(15, 23, 42, 0.12);
}

html:not(.theme-dark) .cta-button--secondary:hover {
    background: rgba(15, 23, 42, 0.04);
    border-color: rgba(15, 23, 42, 0.2);
    color: var(--text-primary);
}

html:not(.theme-dark) .landing-section-title {
    color: var(--text-primary);
}

html:not(.theme-dark) .landing-split-title {
    color: var(--text-primary);
}

html:not(.theme-dark) .landing-keyline {
    background: rgba(255, 255, 255, 0.86);
    border-color: rgba(15, 23, 42, 0.10);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

html:not(.theme-dark) .landing-list li::before {
    color: var(--text-primary);
}

html:not(.theme-dark) .feature-card,
html:not(.theme-dark) .landing-card,
html:not(.theme-dark) .landing-use-case,
html:not(.theme-dark) .landing-visual-card,
html:not(.theme-dark) .pricing-card,
html:not(.theme-dark) .landing-faq-item,
html:not(.theme-dark) .landing-step {
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

html:not(.theme-dark) .landing-visual-card--transparent {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
}

html:not(.theme-dark) .landing-visual-card--transparent .landing-loop-node,
html:not(.theme-dark) .landing-visual-card--transparent .landing-stacked-card {
    background: transparent;
    border-color: rgba(15, 23, 42, 0.18);
    box-shadow: none;
}

html:not(.theme-dark) .landing-visual-icon,
html:not(.theme-dark) .landing-timeline-item .landing-visual-icon {
    color: rgba(15, 23, 42, 0.72);
}

html:not(.theme-dark) .landing-loop-node,
html:not(.theme-dark) .landing-pill,
html:not(.theme-dark) .landing-flow-core,
html:not(.theme-dark) .landing-flow-output,
html:not(.theme-dark) .landing-stacked-card {
    background: rgba(15, 23, 42, 0.04);
    border-color: rgba(15, 23, 42, 0.10);
    color: var(--text-primary);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

html:not(.theme-dark) .landing-flow-output {
    background: rgba(96, 165, 250, 0.10);
    border-color: rgba(96, 165, 250, 0.22);
}

html:not(.theme-dark) .landing-flow-diagram .landing-pill,
html:not(.theme-dark) .landing-flow-diagram .landing-flow-output {
    background: transparent;
    box-shadow: none;
}

html:not(.theme-dark) .landing-loop-arrow,
html:not(.theme-dark) .landing-flow-arrow {
    color: rgba(71, 85, 105, 0.9);
}

html:not(.theme-dark) .landing-timeline::before {
    background: rgba(15, 23, 42, 0.12);
}

/* Light mode overrides for the Hint optimizer page */
html:not(.theme-dark) .optimizer-page::before {
    background:
        radial-gradient(1100px 780px at 15% 10%, rgba(96, 165, 250, 0.16), transparent 60%),
        radial-gradient(900px 700px at 90% 15%, rgba(192, 132, 252, 0.14), transparent 60%),
        radial-gradient(950px 720px at 55% 105%, rgba(110, 231, 183, 0.14), transparent 60%),
        linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
}

html:not(.theme-dark) .optimizer-page .header {
    background: rgba(248, 250, 252, 0.82);
    border-bottom: none;
    box-shadow: none;
}

html:not(.theme-dark) .optimizer-page .header::after {
    background: linear-gradient(90deg, transparent, rgba(15, 23, 42, 0.12), transparent);
}

html:not(.theme-dark) .optimizer-page .card-box,
html:not(.theme-dark) .optimizer-page .trn-section {
    background: rgba(255, 255, 255, 0.86);
    border-color: rgba(15, 23, 42, 0.08);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

html:not(.theme-dark) .optimizer-page .card-box:hover {
    border-color: rgba(15, 23, 42, 0.18);
}

html:not(.theme-dark) .optimizer-page .card-box h3::after,
html:not(.theme-dark) .optimizer-page .panel-title::after,
html:not(.theme-dark) .optimizer-page .flow-item--divider::before,
html:not(.theme-dark) .optimizer-page .flow-subtotal::before,
html:not(.theme-dark) .optimizer-page .flow-total::before,
html:not(.theme-dark) .optimizer-page .hint-footer::before {
    background: linear-gradient(90deg, transparent, rgba(15, 23, 42, 0.12), transparent);
}

html:not(.theme-dark) .optimizer-page .hint-footer {
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.03), transparent);
}

html:not(.theme-dark) .optimizer-page .unlock-section {
    background: rgba(15, 23, 42, 0.04);
    border-color: rgba(15, 23, 42, 0.08);
}

html:not(.theme-dark) .pricing-price-main,
html:not(.theme-dark) .pricing-who-title {
    color: var(--text-primary);
}

html:not(.theme-dark) .pricing-badge {
    color: #065f46;
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.25);
}

@media (max-width: 640px) {
    html:not(.theme-dark) .landing-header {
        background: rgba(248, 250, 252, 0.82);
        border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    }
}