/* ============================================================
   ThodThube 2026 — CSS Variable Foundation
   ============================================================ */

/* --- Dark Theme (Default) --- */
:root,
[data-theme="dark"] {
    /* Backgrounds */
    --bg-base: #0e0e12;
    --bg-card: #16161b;
    --bg-card-alt: #1a1a20;
    --bg-hover: #1f1f26;
    --bg-elevated: #24242b;
    --bg-surface: #2a2a32;
    --bg-overlay: rgba(0,0,0,0.6);

    /* Text */
    --text-primary: #e2e4e9;
    --text-secondary: #a0a3ad;
    --text-muted: #6b6e7a;
    --text-inverse: #0e0e12;

    /* Borders */
    --border: #2a2a33;
    --border-light: #333340;
    --border-focus: var(--accent);

    /* Accent (default Ocean Blue, overridden by JS) */
    --accent: #03a9f4;
    --accent-hover: #29b6f6;
    --accent-soft: rgba(3, 169, 244, 0.12);
    --accent-glow: rgba(3, 169, 244, 0.25);
    --accent-text: #03a9f4;

    /* Semantic */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 20px var(--accent-glow);

    /* Layout */
    --sidebar-width: 280px;
    --header-height: 60px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 100px;
    --content-max: 1400px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Scrollbar */
    --scrollbar-bg: var(--bg-base);
    --scrollbar-thumb: #3a3a44;

    /* Font */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Poppins', var(--font-body);
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* --- Light Theme --- */
[data-theme="light"] {
    --bg-base: #f5f6f8;
    --bg-card: #ffffff;
    --bg-card-alt: #f9fafb;
    --bg-hover: #eef0f3;
    --bg-elevated: #e8eaed;
    --bg-surface: #dfe1e5;
    --bg-overlay: rgba(0,0,0,0.3);

    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;

    --border: #d1d5db;
    --border-light: #e5e7eb;
    --border-focus: var(--accent);

    --accent-soft: rgba(3, 169, 244, 0.08);
    --accent-glow: rgba(3, 169, 244, 0.15);

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);

    --scrollbar-bg: #f0f0f0;
    --scrollbar-thumb: #c4c4cc;
}

/* --- Auto: follow system --- */
@media (prefers-color-scheme: light) {
    [data-theme="auto"] {
        --bg-base: #f5f6f8;
        --bg-card: #ffffff;
        --bg-card-alt: #f9fafb;
        --bg-hover: #eef0f3;
        --bg-elevated: #e8eaed;
        --bg-surface: #dfe1e5;
        --bg-overlay: rgba(0,0,0,0.3);
        --text-primary: #111827;
        --text-secondary: #4b5563;
        --text-muted: #9ca3af;
        --text-inverse: #ffffff;
        --border: #d1d5db;
        --border-light: #e5e7eb;
        --accent-soft: rgba(3, 169, 244, 0.08);
        --accent-glow: rgba(3, 169, 244, 0.15);
        --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
        --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
        --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
        --scrollbar-bg: #f0f0f0;
        --scrollbar-thumb: #c4c4cc;
    }
}

/* --- Accent Presets (applied via JS) --- */
[data-accent="ocean"]   { --accent: #03a9f4; --accent-hover: #29b6f6; --accent-soft: rgba(3,169,244,0.12); --accent-glow: rgba(3,169,244,0.25); --accent-text: #03a9f4; }
[data-accent="violet"]  { --accent: #8b5cf6; --accent-hover: #a78bfa; --accent-soft: rgba(139,92,246,0.12); --accent-glow: rgba(139,92,246,0.25); --accent-text: #8b5cf6; }
[data-accent="emerald"] { --accent: #10b981; --accent-hover: #34d399; --accent-soft: rgba(16,185,129,0.12); --accent-glow: rgba(16,185,129,0.25); --accent-text: #10b981; }
[data-accent="crimson"] { --accent: #ef4444; --accent-hover: #f87171; --accent-soft: rgba(239,68,68,0.12); --accent-glow: rgba(239,68,68,0.25); --accent-text: #ef4444; }
[data-accent="amber"]   { --accent: #f59e0b; --accent-hover: #fbbf24; --accent-soft: rgba(245,158,11,0.12); --accent-glow: rgba(245,158,11,0.25); --accent-text: #f59e0b; }
[data-accent="rose"]    { --accent: #ec4899; --accent-hover: #f472b6; --accent-soft: rgba(236,72,153,0.12); --accent-glow: rgba(236,72,153,0.25); --accent-text: #ec4899; }
[data-accent="silver"]  { --accent: #94a3b8; --accent-hover: #b0bec5; --accent-soft: rgba(148,163,184,0.12); --accent-glow: rgba(148,163,184,0.25); --accent-text: #94a3b8; }