/* ===========================================
   cbdc.study -- Warm Sci-Fi Institutional
   =========================================== */

/* --- CSS Custom Properties --- */
:root {
    /* Palette -- Muted Vintage */
    --aged-linen: #f5f0e8;
    --parchment-smoke: #e8e1d5;
    --walnut-depth: #3d2b1f;
    --walnut-depth-light: #4a3828;
    --deep-umber: #2c1810;
    --warm-charcoal: #3d3530;
    --warm-slate: #6b6560;
    --burnished-gold: #c4a04a;
    --oxidized-copper: #8b6914;
    --faded-teal: #5a7d7c;
    --aged-vermillion: #a0522d;
    --warm-ivory: #faf7f2;
    --dust-line: #d4cdc4;
    --parchment-alt: #f0ebe3;

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Source Sans 3', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    color: rgba(61, 53, 48, 0.9);
    background-color: var(--aged-linen);
    line-height: 1.65;
    letter-spacing: 0.01em;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

/* Paper-grain texture on background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='noise'%3E%3CfeTurbulence baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23noise)' opacity='0.5'/%3E%3C/svg%3E");
}

/* --- Opening Sequence --- */
#opening-sequence {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--aged-linen);
    transition: opacity 0.5s ease-out;
}

#opening-sequence.fade-out {
    opacity: 0;
    pointer-events: none;
}

#opening-sequence.hidden {
    display: none;
}

#opening-bg {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

#opening-line {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--burnished-gold);
    transform: scaleX(0);
    transform-origin: center;
}

#opening-line.animate {
    animation: drawLine 600ms ease-out forwards;
}

@keyframes drawLine {
    to { transform: scaleX(1); }
}

#opening-title {
    position: relative;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(2.4rem, 5vw, 4rem);
    color: var(--deep-umber);
    letter-spacing: 0.02em;
    opacity: 0;
    transform: translateY(15px);
    z-index: 1;
}

#opening-title.animate {
    animation: riseUp 500ms ease-out forwards;
}

#opening-tagline {
    position: relative;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 16px;
    color: var(--warm-slate);
    opacity: 0;
    transform: translateY(15px);
    z-index: 1;
    margin-top: 8px;
}

#opening-tagline.animate {
    animation: riseUp 500ms ease-out forwards;
}

@keyframes riseUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#opening-line-top,
#opening-line-bottom {
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--burnished-gold);
    opacity: 0;
}

#opening-line-top {
    top: 50%;
}

#opening-line-bottom {
    top: 50%;
}

#opening-line-top.animate {
    opacity: 1;
    animation: splitUp 800ms ease-in-out forwards;
}

#opening-line-bottom.animate {
    opacity: 1;
    animation: splitDown 800ms ease-in-out forwards;
}

@keyframes splitUp {
    to { transform: translateY(-40vh); }
}

@keyframes splitDown {
    to { transform: translateY(40vh); }
}

/* --- Dashboard Layout --- */
#dashboard {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    grid-template-rows: 64px 1fr 48px;
    width: 100vw;
    height: 100vh;
    opacity: 0;
    position: relative;
    z-index: 1;
}

#dashboard.visible {
    opacity: 1;
}

/* --- Header Bar --- */
#header-bar {
    grid-column: 1 / -1;
    grid-row: 1;
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    align-items: center;
    background-color: var(--warm-ivory);
    border-bottom: 1px solid var(--dust-line);
    padding: 0;
    z-index: 10;
}

#header-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--deep-umber);
    letter-spacing: 0.02em;
    padding: 0 24px;
}

#header-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 24px;
    overflow: hidden;
    mask-image: linear-gradient(to right, black 85%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, black 85%, transparent 100%);
}

.breadcrumb-label {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--warm-slate);
    white-space: nowrap;
}

.breadcrumb-label.active {
    color: var(--oxidized-copper);
}

.breadcrumb-sep {
    color: var(--dust-line);
    font-size: 10px;
}

#header-progress {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding: 0 24px;
}

.progress-ring {
    width: 32px;
    height: 32px;
}

.progress-label {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--oxidized-copper);
}

/* --- Mobile Hamburger --- */
#mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 100;
    background: var(--warm-ivory);
    border: 1px solid var(--dust-line);
    padding: 8px;
    cursor: pointer;
}

/* --- Navigation Silo --- */
#nav-silo {
    grid-column: 1;
    grid-row: 2;
    background: linear-gradient(to bottom, var(--walnut-depth), var(--walnut-depth-light));
    padding: 24px 0;
    overflow-y: auto;
    position: relative;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 400ms ease-out, transform 400ms ease-out;
}

/* Wood-grain texture */
#nav-silo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(74, 56, 40, 0.15) 2px,
        rgba(74, 56, 40, 0.15) 3px,
        transparent 3px,
        transparent 5px,
        rgba(74, 56, 40, 0.1) 5px,
        rgba(74, 56, 40, 0.1) 6px
    );
    opacity: 0.3;
}

#nav-silo.animate {
    opacity: 1;
    transform: translateX(0);
}

.nav-group {
    margin-bottom: 8px;
    position: relative;
}

.nav-group::after {
    content: '';
    display: block;
    margin: 8px 20px;
    height: 1px;
    background-color: rgba(107, 101, 96, 0.2);
}

.nav-group:last-child::after {
    display: none;
}

.nav-group-label {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.1em;
    color: rgba(196, 160, 74, 0.5);
    padding: 4px 24px 8px;
    text-transform: uppercase;
    position: relative;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(232, 225, 213, 0.7);
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: transform 200ms ease-out, color 200ms ease-out, border-color 200ms ease-out;
    position: relative;
}

.nav-item:hover {
    transform: translateX(4px);
    color: rgba(232, 225, 213, 1);
    border-left-color: var(--burnished-gold);
}

.nav-item:hover .nav-icon {
    transform: translateY(-2px) rotate(5deg);
    stroke: var(--burnished-gold);
}

.nav-item.active {
    color: var(--burnished-gold);
    border-left: 3px solid transparent;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid var(--burnished-gold);
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
}

.nav-icon {
    flex-shrink: 0;
    stroke: rgba(232, 225, 213, 0.5);
    transition: transform 200ms ease-out, stroke 200ms ease-out;
}

.nav-item.active .nav-icon {
    stroke: var(--burnished-gold);
}

/* --- Primary Viewport --- */
#primary-viewport {
    grid-column: 2;
    grid-row: 2;
    overflow-y: auto;
    padding: 32px;
    background-color: var(--aged-linen);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 400ms ease-out, transform 400ms ease-out;
}

#primary-viewport.animate {
    opacity: 1;
    transform: translateY(0);
}

/* Scrollbar styling for primary viewport */
#primary-viewport::-webkit-scrollbar {
    width: 6px;
}
#primary-viewport::-webkit-scrollbar-track {
    background: transparent;
}
#primary-viewport::-webkit-scrollbar-thumb {
    background-color: var(--dust-line);
    border-radius: 3px;
}

/* --- Study Panels --- */
.study-panel {
    position: relative;
    border: 2px solid rgba(139, 105, 20, 0.4);
    border-radius: 6px;
    background-color: var(--warm-ivory);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    margin-bottom: 24px;
    padding: 28px 32px;
    transition: transform 250ms cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 250ms ease-out;
    opacity: 0;
    transform: translateY(20px);
}

.study-panel.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 400ms ease-out, transform 400ms ease-out;
}

.study-panel:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.06);
}

.study-panel.visible:hover {
    transform: translateY(-4px);
}

.study-panel:hover .panel-corner-accent {
    opacity: 0.6;
}

/* Triangular Corner Accent */
.panel-corner-accent {
    position: absolute;
    top: 0;
    right: 0;
    width: 12px;
    height: 12px;
    clip-path: polygon(0 0, 100% 0, 100% 100%);
    background-color: var(--burnished-gold);
    opacity: 0.3;
    transition: opacity 250ms ease-out;
    border-radius: 0 6px 0 0;
}

/* Panel Header */
.panel-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.panel-icon {
    flex-shrink: 0;
    transition: transform 200ms ease-out, stroke 200ms ease-out;
}

.study-panel:hover .panel-icon {
    transform: translateY(-2px);
    stroke: var(--burnished-gold);
}

/* Panel Body */
.panel-body p {
    max-width: 65ch;
    margin-bottom: 16px;
    color: rgba(61, 53, 48, 0.9);
}

.panel-body p:last-child {
    margin-bottom: 0;
}

/* --- Typography --- */
h1 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 3.2rem);
    color: var(--deep-umber);
    letter-spacing: 0.02em;
    line-height: 1.2;
}

h2 {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    color: var(--deep-umber);
    letter-spacing: 0.03em;
    line-height: 1.3;
}

h3 {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: var(--warm-charcoal);
    letter-spacing: 0.03em;
    line-height: 1.4;
    margin-bottom: 12px;
    margin-top: 20px;
}

h3:first-child {
    margin-top: 0;
}

/* --- Chevron List --- */
.chevron-list {
    list-style: none;
    padding: 0;
    margin-bottom: 16px;
}

.chevron-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    max-width: 65ch;
}

.chevron-list li::before {
    content: '\25B8';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--oxidized-copper);
    font-size: 14px;
    line-height: 1.65;
}

.chevron-list li strong {
    font-weight: 600;
    color: var(--warm-charcoal);
}

/* --- Diagonal Divider --- */
.diagonal-divider {
    height: 20px;
    margin: 20px 0;
    background: linear-gradient(15deg, transparent 49.5%, var(--dust-line) 49.5%, var(--dust-line) 50.5%, transparent 50.5%);
}

/* --- Key Stats --- */
.key-stats {
    display: flex;
    gap: 32px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 28px;
    font-weight: 400;
    color: var(--oxidized-copper);
    letter-spacing: 0.02em;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    color: var(--warm-slate);
    text-transform: uppercase;
}

/* --- Timeline --- */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--dust-line);
}

.timeline-entry {
    position: relative;
    margin-bottom: 28px;
}

.timeline-entry:last-child {
    margin-bottom: 0;
}

.timeline-entry::before {
    content: '';
    position: absolute;
    left: -28px;
    top: 4px;
    width: 0;
    height: 0;
    border-left: 6px solid var(--burnished-gold);
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
}

.timeline-year {
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--oxidized-copper);
    display: block;
    margin-bottom: 4px;
}

.timeline-content h3 {
    margin-top: 0;
    margin-bottom: 6px;
    font-size: 1.1rem;
}

.timeline-content p {
    max-width: 60ch;
    color: rgba(61, 53, 48, 0.85);
    font-size: 15px;
}

/* --- Comparison Table --- */
.comparison-table {
    border: 1px solid var(--dust-line);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 16px;
}

.comparison-row {
    display: grid;
    grid-template-columns: 120px 1fr 100px 100px;
    border-bottom: 1px solid var(--dust-line);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-header {
    background-color: var(--parchment-alt);
}

.comparison-header .comparison-cell {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--warm-slate);
}

.comparison-cell {
    padding: 10px 14px;
    font-size: 14px;
    border-right: 1px solid var(--dust-line);
}

.comparison-cell:last-child {
    border-right: none;
}

.comparison-cell.label {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--oxidized-copper);
    font-weight: 400;
}

/* --- Country Grid --- */
.country-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 12px;
}

.country-card {
    position: relative;
    padding: 20px;
    background-color: var(--parchment-alt);
    border: 1px solid var(--dust-line);
    border-radius: 4px;
    transition: transform 200ms ease-out, box-shadow 200ms ease-out;
}

.country-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.country-card h3 {
    margin-top: 0;
    margin-bottom: 8px;
    font-size: 1rem;
}

.country-card p {
    font-size: 14px;
    color: rgba(61, 53, 48, 0.85);
    max-width: none;
}

.country-status {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 2px;
    margin-bottom: 10px;
}

.country-status.launched {
    background-color: rgba(90, 125, 124, 0.15);
    color: var(--faded-teal);
}

.country-status.pilot {
    background-color: rgba(196, 160, 74, 0.15);
    color: var(--oxidized-copper);
}

/* --- Context Shelf --- */
#context-shelf {
    grid-column: 3;
    grid-row: 2;
    background-color: var(--parchment-alt);
    padding: 24px 20px;
    overflow-y: auto;
    border-left: 1px solid var(--dust-line);
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 400ms ease-out, transform 400ms ease-out;
    position: relative;
}

/* Diagonal crosshatch pattern */
#context-shelf::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(212, 205, 196, 0.15) 10px,
            rgba(212, 205, 196, 0.15) 11px
        ),
        repeating-linear-gradient(
            135deg,
            transparent,
            transparent 10px,
            rgba(212, 205, 196, 0.15) 10px,
            rgba(212, 205, 196, 0.15) 11px
        );
}

#context-shelf.animate {
    opacity: 1;
    transform: translateX(0);
}

/* Shelf scrollbar */
#context-shelf::-webkit-scrollbar {
    width: 4px;
}
#context-shelf::-webkit-scrollbar-track {
    background: transparent;
}
#context-shelf::-webkit-scrollbar-thumb {
    background-color: var(--dust-line);
    border-radius: 2px;
}

.shelf-section {
    margin-bottom: 28px;
    position: relative;
}

.shelf-title {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--warm-slate);
    margin-bottom: 16px;
    margin-top: 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--dust-line);
}

/* --- Definition Cards --- */
.definition-card {
    position: relative;
    background-color: var(--warm-ivory);
    border: 1px solid var(--dust-line);
    border-radius: 3px;
    padding: 12px 14px;
    margin-bottom: 10px;
    transition: transform 200ms ease-out, box-shadow 200ms ease-out;
}

.definition-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.definition-card:hover .definition-fold {
    transform: rotate(-5deg);
}

/* Folded Corner Effect */
.definition-fold {
    position: absolute;
    top: 0;
    right: 0;
    width: 16px;
    height: 16px;
    background: linear-gradient(225deg, var(--parchment-smoke) 50%, var(--dust-line) 50%);
    border-radius: 0 3px 0 0;
    transition: transform 200ms ease-out;
}

.definition-card dt {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--oxidized-copper);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.definition-card dd {
    font-size: 13px;
    line-height: 1.5;
    color: rgba(61, 53, 48, 0.85);
}

/* --- Related Links --- */
.related-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.related-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--warm-charcoal);
    text-decoration: none;
    padding: 6px 8px;
    border-radius: 3px;
    transition: background-color 200ms ease-out, color 200ms ease-out;
}

.related-link:hover {
    background-color: rgba(196, 160, 74, 0.1);
    color: var(--oxidized-copper);
}

.related-icon {
    flex-shrink: 0;
}

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

.source-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(61, 53, 48, 0.8);
}

/* --- Footer Bar --- */
#footer-bar {
    grid-column: 1 / -1;
    grid-row: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background-color: var(--walnut-depth);
    border-top: 1px solid rgba(196, 160, 74, 0.2);
    padding: 0 24px;
}

.footer-label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    color: rgba(232, 225, 213, 0.4);
    text-transform: uppercase;
}

.footer-divider {
    color: rgba(232, 225, 213, 0.15);
    font-size: 10px;
}

/* --- Bottom gradient hover on panels --- */
.study-panel::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to top, rgba(196, 160, 74, 0), rgba(196, 160, 74, 0));
    border-radius: 0 0 6px 6px;
    pointer-events: none;
    transition: background 300ms ease-out;
}

.study-panel:hover::after {
    background: linear-gradient(to top, rgba(196, 160, 74, 0.05), transparent);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    #dashboard {
        grid-template-columns: 1fr;
        grid-template-rows: 64px 1fr auto 48px;
    }

    #header-bar {
        grid-template-columns: 1fr;
        padding: 0 16px;
    }

    #header-title {
        padding: 0;
    }

    #header-breadcrumb,
    #header-progress {
        display: none;
    }

    #mobile-menu-toggle {
        display: block;
    }

    #nav-silo {
        position: fixed;
        top: 0;
        left: -300px;
        width: 280px;
        height: 100vh;
        z-index: 200;
        grid-column: auto;
        grid-row: auto;
        transition: left 300ms ease-out, opacity 400ms ease-out;
    }

    #nav-silo.mobile-open {
        left: 0;
        opacity: 1;
        transform: translateX(0);
    }

    #primary-viewport {
        grid-column: 1;
        grid-row: 2;
        padding: 20px 16px;
    }

    #context-shelf {
        grid-column: 1;
        grid-row: 3;
        border-left: none;
        border-top: 1px solid var(--dust-line);
        max-height: 300px;
    }

    #footer-bar {
        grid-column: 1;
        grid-row: 4;
    }

    .country-grid {
        grid-template-columns: 1fr;
    }

    .comparison-row {
        grid-template-columns: 100px 1fr 80px 80px;
    }

    .key-stats {
        gap: 20px;
    }
}

@media (max-width: 600px) {
    #header-title {
        padding-left: 48px;
    }

    .comparison-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .comparison-header {
        display: none;
    }

    .comparison-cell {
        border-right: none;
        border-bottom: 1px solid var(--dust-line);
        padding: 8px 12px;
    }

    .comparison-cell.label {
        background-color: var(--parchment-alt);
    }

    .study-panel {
        padding: 20px 16px;
    }
}

/* Mobile overlay */
#nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(44, 24, 16, 0.3);
    z-index: 150;
}

@media (max-width: 1024px) {
    #nav-overlay.visible {
        display: block;
    }
}