/* Tulpa Theme System */

:root {
    /* Base palette - warm amber / aged gold */
    --accent-1: #c8a44e;
    --accent-2: #8b6914;
    --accent-1-dim: #c8a44e18;
    --accent-2-dim: #8b691418;
    --accent-warm: #d4a237;
    --accent-copper: #a67c52;

    /* Font families */
    --font-display: 'Cinzel', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;

    /* Spacing */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
}

/* Dark theme (default) */
[data-theme="dark"] {
    --bg-primary: #121010;
    --bg-secondary: #1a1614;
    --bg-tertiary: #231e1a;
    --bg-card: #1e1916;
    --bg-hover: #2a2320;
    --bg-inset: #0e0c0b;

    --text-primary: #ddd5c8;
    --text-secondary: #a89e90;
    --text-muted: #6e645a;
    --text-accent: #c8a44e;

    --border: #2e2720;
    --border-bright: #3d342a;

    --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.5);

    --scrollbar-track: #1a1614;
    --scrollbar-thumb: #3d342a;
    --scrollbar-thumb-hover: #c8a44e;
}

/* Light theme */
[data-theme="light"] {
    --bg-primary: #f5f0e8;
    --bg-secondary: #ede4d3;
    --bg-tertiary: #e2d6c1;
    --bg-card: #faf7f2;
    --bg-hover: #efe9dd;
    --bg-inset: #e8dfce;

    --text-primary: #2c2418;
    --text-secondary: #5c4f3e;
    --text-muted: #8a7d6b;
    --text-accent: #8b6914;

    --border: #d6ccb8;
    --border-bright: #c4b89e;

    --shadow-card: 0 2px 12px rgba(90, 70, 40, 0.1);
    --shadow-hover: 0 4px 20px rgba(90, 70, 40, 0.15);

    --scrollbar-track: #ede4d3;
    --scrollbar-thumb: #c4b89e;
    --scrollbar-thumb-hover: #8b6914;
}

/* ===== Scrollbar Styles ===== */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

::-webkit-scrollbar-corner {
    background: var(--scrollbar-track);
}

/* 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);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: 3rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

/* Utility classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.text-muted {
    color: var(--text-muted);
}

.text-secondary {
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-1);
    color: #1a1210;
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--accent-warm);
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-bright);
}

.btn-outline:hover {
    background: var(--bg-hover);
    border-color: var(--accent-1);
    color: var(--text-accent);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-card);
}

.card:hover {
    border-color: var(--border-bright);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-accent {
    background: var(--accent-1-dim);
    color: var(--text-accent);
    border: 1px solid var(--accent-copper);
}

/* Divider */
.divider {
    width: 60px;
    height: 2px;
    background: var(--accent-1);
    margin: 0 auto;
    opacity: 0.6;
}

/* ===== Site Navigation ===== */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-accent);
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.nav-brand:hover {
    opacity: 0.85;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    padding: 0.4rem 0.7rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-accent);
    background: var(--bg-hover);
}

.nav-link-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.35rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.25rem;
}

.theme-toggle:hover {
    color: var(--text-accent);
    border-color: var(--accent-1);
}

@media (max-width: 600px) {
    .nav-link { padding: 0.35rem 0.45rem; font-size: 0.8rem; }
    .nav-inner { padding: 0 1rem; }
}

/* Animations */
@keyframes fade-in {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.animate-fade-in {
    animation: fade-in 0.5s ease-out forwards;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}