/* ═══════════════════════════════════════════════════════════════════════════
   XFS Manager — CSS Theme Variables (Dark/Light)
   MEGA.nz-inspired with modern design tokens
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    /* Spacing */
    --sp-1: 4px;
    --sp-2: 8px;
    --sp-3: 12px;
    --sp-4: 16px;
    --sp-5: 20px;
    --sp-6: 24px;
    --sp-8: 32px;
    --sp-10: 40px;
    --sp-12: 48px;

    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;
    --fs-xs: 0.75rem;
    --fs-sm: 0.8125rem;
    --fs-base: 0.875rem;
    --fs-md: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 2rem;

    /* Layout */
    --sidebar-width: 260px;
    --topbar-height: 56px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);
}

/* ─── Dark Theme (default) ─── */
[data-theme="dark"] {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-tertiary: #1a1a24;
    --bg-elevated: #1e1e2a;
    --bg-hover: #252533;
    --bg-active: #2a2a3a;
    --bg-card: #14141e;
    --bg-input: #16161f;
    --bg-overlay: rgba(0, 0, 0, 0.7);

    --border-primary: #2a2a3a;
    --border-secondary: #1e1e2e;
    --border-hover: #3a3a4f;
    --border-focus: #6366f1;

    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-tertiary: #6b6b80;
    --text-muted: #4a4a5e;
    --text-inverse: #0a0a0f;

    --accent-primary: #6366f1;
    --accent-primary-hover: #818cf8;
    --accent-primary-muted: rgba(99, 102, 241, 0.15);
    --accent-secondary: #ec4899;
    --accent-secondary-muted: rgba(236, 72, 153, 0.15);

    --success: #22c55e;
    --success-muted: rgba(34, 197, 94, 0.15);
    --warning: #f59e0b;
    --warning-muted: rgba(245, 158, 11, 0.15);
    --danger: #ef4444;
    --danger-muted: rgba(239, 68, 68, 0.15);
    --info: #3b82f6;
    --info-muted: rgba(59, 130, 246, 0.15);

    --scrollbar-track: #111118;
    --scrollbar-thumb: #2a2a3a;
    --scrollbar-thumb-hover: #3a3a4f;

    --gradient-hero: linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 50%, #0a1a2e 100%);
    --gradient-card: linear-gradient(145deg, #14141e 0%, #1a1a28 100%);
    --gradient-accent: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
}

/* ─── Light Theme ─── */
[data-theme="light"] {
    --bg-primary: #fafafe;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f5f5fa;
    --bg-elevated: #ffffff;
    --bg-hover: #f0f0f5;
    --bg-active: #e8e8f0;
    --bg-card: #ffffff;
    --bg-input: #f5f5fa;
    --bg-overlay: rgba(0, 0, 0, 0.4);

    --border-primary: #e0e0ea;
    --border-secondary: #eaeaf0;
    --border-hover: #d0d0da;
    --border-focus: #6366f1;

    --text-primary: #1a1a2e;
    --text-secondary: #5a5a70;
    --text-tertiary: #8a8a9e;
    --text-muted: #b0b0c0;
    --text-inverse: #ffffff;

    --accent-primary: #6366f1;
    --accent-primary-hover: #4f46e5;
    --accent-primary-muted: rgba(99, 102, 241, 0.1);
    --accent-secondary: #ec4899;
    --accent-secondary-muted: rgba(236, 72, 153, 0.1);

    --success: #16a34a;
    --success-muted: rgba(22, 163, 74, 0.1);
    --warning: #d97706;
    --warning-muted: rgba(217, 119, 6, 0.1);
    --danger: #dc2626;
    --danger-muted: rgba(220, 38, 38, 0.1);
    --info: #2563eb;
    --info-muted: rgba(37, 99, 235, 0.1);

    --scrollbar-track: #f5f5fa;
    --scrollbar-thumb: #d0d0da;
    --scrollbar-thumb-hover: #b0b0c0;

    --gradient-hero: linear-gradient(135deg, #f5f5ff 0%, #eff0ff 50%, #f0f5ff 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #fafaff 100%);
    --gradient-accent: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);

    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.5;
    overflow: hidden;
    height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}
::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* Selection */
::selection {
    background: var(--accent-primary);
    color: white;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
}

img {
    max-width: 100%;
}

.hidden {
    display: none !important;
}