:root {
    /* Void Space Palette - Swiss Edition (Dark Mode Default) */
    --bg-color: #0d1117;
    --surface-color: #161b22;
    --border-color: rgba(240, 246, 252, 0.15);
    --primary: #ffffff;
    --primary-hover: #c9d1d9;
    --accent: #58a6ff;
    --text-primary: #ffffff;
    --text-secondary: #8b949e;
    
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 32px;
    --space-6: 64px;
    --space-7: 120px;
    
    --radius-sm: 0px; /* Swiss is sharp */
    --radius-md: 0px;
    --radius-lg: 0px;
}

:root.light-mode {
    --bg-color: #f1f5f9;
    --surface-color: #ffffff;
    --border-color: rgba(15, 23, 42, 0.15);
    --primary: #0f172a;
    --primary-hover: #334155;
    --accent: #0284c7;
    --text-primary: #0f172a;
    --text-secondary: #475569;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html.lenis {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

.lenis.lenis-stopped {
  overflow: hidden;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Utilities */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.section {
    padding: var(--space-7) 0;
    border-bottom: 1px solid var(--border-color);
}

.dark-section {
    background-color: var(--surface-color);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid transparent;
    mix-blend-mode: difference;
    transition: background-color 0.3s ease, border-color 0.3s ease, mix-blend-mode 0.3s ease;
}

.navbar.scrolled {
    background-color: var(--bg-color);
    mix-blend-mode: normal;
    border-bottom: 1px solid var(--border-color);
}

.navbar.scrolled .logo,
.navbar.scrolled .nav-links a:not(.btn-primary) {
    color: var(--text-primary);
}

.nav-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: #fff;
    text-decoration: none;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: var(--space-5);
    align-items: center;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: opacity 0.2s ease;
}

.nav-links a:hover {
    opacity: 0.6;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--bg-color) !important;
    padding: 10px 24px;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.full-width {
    width: 100%;
}

.theme-toggle {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.theme-toggle:hover {
    opacity: 0.6;
    transform: rotate(15deg);
}

.navbar.scrolled .theme-toggle {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: flex-end;
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

/* Contrast Overlay */
.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: linear-gradient(to top, var(--bg-color) 10%, transparent 100%);
    z-index: 1;
    pointer-events: none;
}

#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    pointer-events: none;
    text-shadow: 0 4px 24px rgba(0,0,0,0.5); /* Additional contrast */
}

:root.light-mode .hero-content {
    text-shadow: 0 4px 24px rgba(255,255,255,0.8);
}

.hero h1 {
    font-size: clamp(4rem, 12vw, 10rem);
    line-height: 0.85;
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: var(--space-4);
    text-transform: uppercase;
}

.hero h1 .line {
    display: block;
    overflow: hidden;
}

.hero p {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    max-width: 600px;
    font-weight: 500;
}

/* Swiss Layout Grid */
.grid-swiss {
    display: grid;
    grid-template-columns: 4fr 6fr;
    gap: var(--space-6);
}

.swiss-header {
    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 0.9;
    font-weight: 800;
    letter-spacing: -0.03em;
    text-transform: uppercase;
}

.large-body {
    font-size: clamp(1.25rem, 3vw, 2rem);
    line-height: 1.3;
    font-weight: 500;
    margin-bottom: var(--space-6);
}

/* Stats */
.history-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
}

.stat-box {
    background-color: var(--bg-color);
    padding: var(--space-5);
}

.stat-box h3 {
    font-size: 4rem;
    line-height: 1;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-2);
}

.stat-box p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 1px;
}

/* Planner Section */
.section-header {
    margin-bottom: var(--space-6);
}

.planner-container {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--space-4);
    height: 700px;
}

.planner-sidebar {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
}

.input-group {
    margin-bottom: var(--space-4);
}

.input-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-secondary);
}

.input-group input {
    width: 100%;
    padding: 12px 0;
    background-color: transparent;
    border: none;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1.25rem;
    font-weight: 500;
    outline: none;
    transition: border-color 0.3s ease;
}

.input-group input:focus {
    border-color: var(--primary);
}

/* Autocomplete */
.autocomplete-wrapper {
    position: relative;
}

.autocomplete-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    margin-top: var(--space-1);
    list-style: none;
    max-height: 250px;
    overflow-y: auto;
    z-index: 10;
}

.autocomplete-list li {
    padding: 12px 16px;
    font-size: 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

.autocomplete-list li:last-child {
    border-bottom: none;
}

.autocomplete-list li:hover {
    background-color: var(--primary);
    color: var(--bg-color);
}

.hidden {
    display: none !important;
}

/* Map */
.planner-map {
    border: 1px solid var(--border-color);
    overflow: hidden;
}

#map {
    width: 100%;
    height: 100%;
    z-index: 1;
    filter: grayscale(100%) contrast(1.2); /* Brutalist map styling */
}

/* Routing Results */
.route-results {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border-color);
    flex-grow: 1;
    overflow-y: auto;
}

.route-results h3 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: var(--space-4);
    color: var(--accent);
}

.step {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    position: relative;
}

.step::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 16px;
    bottom: -16px;
    width: 2px;
    background-color: var(--border-color);
}

.step:last-child::before {
    display: none;
}

.step-icon {
    width: 10px;
    height: 10px;
    background-color: var(--text-secondary);
    margin-top: 6px;
    z-index: 2;
    border-radius: 50%;
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 1rem;
    font-weight: 600;
}

.step-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Stations Grid */
.stations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1px;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
}

.station-card {
    background-color: var(--bg-color);
    padding: var(--space-4);
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.station-card:hover {
    background-color: var(--surface-color);
    transform: translateY(-2px);
}

.station-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.station-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Footer */
footer {
    padding: var(--space-5) 0;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer p {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-secondary);
}

footer a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

footer a:hover {
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 1024px) {
    .grid-swiss {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    .planner-container {
        grid-template-columns: 1fr;
        height: auto;
    }
    #map {
        height: 500px;
    }
}

@media (max-width: 768px) {
    .nav-grid {
        flex-direction: column;
        gap: var(--space-3);
        padding: var(--space-3);
    }
    .nav-links {
        gap: var(--space-3);
        flex-wrap: wrap;
        justify-content: center;
    }
    .navbar {
        /* On mobile, remove difference so it's always readable over the complex train model */
        mix-blend-mode: normal;
        background-color: var(--bg-color);
        border-bottom: 1px solid var(--border-color);
    }
    .navbar .logo, .navbar .nav-links a:not(.btn-primary), .navbar .theme-toggle {
        color: var(--text-primary);
    }
    .hero {
        align-items: center;
        padding-bottom: 0;
        text-align: center;
    }
    .hero p {
        margin: 0 auto;
    }
    .history-stats {
        grid-template-columns: 1fr;
    }
    .stat-box h3 {
        font-size: 3rem;
    }
    .section {
        padding: var(--space-5) 0;
    }
    footer {
        flex-direction: column;
        gap: var(--space-3);
        text-align: center;
    }
}

@media (max-width: 480px) {
    #map {
        height: 350px;
    }
    .nav-links {
        gap: var(--space-2);
    }
    .btn-primary {
        padding: 8px 16px;
    }
    .stations-grid {
        grid-template-columns: 1fr;
    }
}