/* ==========================================================================
   REDIAFILE — MODERN UI DESIGN SYSTEM
   Light & Dark theme support via CSS custom properties
   Replaces: stack-interface custom.css + old neon admin skin
   ========================================================================== */

/* ---------- 1. DESIGN TOKENS / THEME VARIABLES ---------- */
:root {
  /* Brand colors */
  --brand-500: #4f7cff;
  --brand-600: #3b63f0;
  --brand-700: #2f4fd6;
  --brand-grad: linear-gradient(135deg, #4f7cff 0%, #6a5cff 100%);
  --accent-500: #00d4a0;
  --accent-grad: linear-gradient(135deg, #00d4a0 0%, #00b4ff 100%);

  /* Status colors */
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* LIGHT THEME (default) */
  --bg-base: #f4f6fb;
  --bg-surface: #ffffff;
  --bg-surface-2: #f8fafc;
  --bg-elevated: #ffffff;
  --bg-muted: #eef1f7;
  --bg-overlay: rgba(15, 23, 42, 0.45);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-inverse: #ffffff;

  --border-color: #e2e8f0;
  --border-strong: #cbd5e1;
  --border-focus: var(--brand-500);

  --shadow-xs: 0 1px 2px rgba(15,23,42,0.06);
  --shadow-sm: 0 2px 8px rgba(15,23,42,0.06);
  --shadow-md: 0 6px 24px rgba(15,23,42,0.08);
  --shadow-lg: 0 18px 48px rgba(15,23,42,0.12);
  --shadow-brand: 0 10px 30px rgba(79,124,255,0.30);

  --ring: 0 0 0 3px rgba(79,124,255,0.25);

  /* Radius */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 22px;
  --r-full: 999px;

  /* Spacing scale */
  --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; --sp-16: 64px; --sp-20: 80px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;
  --fs-xs: 12px; --fs-sm: 13px; --fs-base: 15px; --fs-md: 17px;
  --fs-lg: 20px; --fs-xl: 26px; --fs-2xl: 34px; --fs-3xl: 46px; --fs-hero: 58px;
  --lh-tight: 1.2; --lh-normal: 1.6; --lh-loose: 1.8;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 0.22s;

  /* Layout */
  --nav-height: 68px;
  --sidebar-width: 260px;
  --container-max: 1200px;
  --z-nav: 1000; --z-dropdown: 1100; --z-modal: 1300; --z-toast: 1400;
}

/* ---------- DARK THEME ---------- */
[data-theme="dark"] {
  --brand-500: #5b8bff;
  --brand-600: #4f7cff;
  --brand-700: #3b63f0;
  --brand-grad: linear-gradient(135deg, #5b8bff 0%, #7a6cff 100%);
  --accent-grad: linear-gradient(135deg, #00e0ad 0%, #1cc8ff 100%);

  --bg-base: #0b1020;
  --bg-surface: #131a2c;
  --bg-surface-2: #0f1626;
  --bg-elevated: #1a2238;
  --bg-muted: #1c2540;
  --bg-overlay: rgba(0,0,0,0.60);

  --text-primary: #eaf0ff;
  --text-secondary: #a7b3cc;
  --text-tertiary: #6b7794;
  --text-inverse: #0b1020;

  --border-color: #232c45;
  --border-strong: #2e3a5c;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.30);
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.30);
  --shadow-md: 0 8px 28px rgba(0,0,0,0.40);
  --shadow-lg: 0 20px 52px rgba(0,0,0,0.55);
  --shadow-brand: 0 12px 34px rgba(79,124,255,0.40);

  --ring: 0 0 0 3px rgba(91,139,255,0.35);
}

/* ---------- 2. BASE / RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
h1,h2,h3,h4,h5,h6 { margin: 0 0 var(--sp-3); font-weight: 700; line-height: var(--lh-tight); color: var(--text-primary); }
h1 { font-size: var(--fs-2xl); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }
p { margin: 0 0 var(--sp-4); color: var(--text-secondary); }
a { color: var(--brand-500); text-decoration: none; transition: color var(--dur); }
a:hover { color: var(--brand-700); }
img { max-width: 100%; display: block; }
hr { border: 0; border-top: 1px solid var(--border-color); margin: var(--sp-6) 0; }
ul { margin: 0; padding: 0; list-style: none; }
code, pre { font-family: var(--font-mono); }
pre { background: var(--bg-muted); padding: var(--sp-4); border-radius: var(--r-md); overflow-x: auto; color: var(--text-primary); }

::selection { background: rgba(79,124,255,0.25); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: var(--r-full); }
::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

/* ---------- 3. LAYOUT HELPERS ---------- */
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 var(--sp-5); }
.container--wide { max-width: 1380px; }
.row { display: flex; flex-wrap: wrap; gap: var(--sp-4); }
.grid { display: grid; gap: var(--sp-5); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
.text-center { text-align: center; }
.text-right { text-align: right; }
.lead { font-size: var(--fs-md); color: var(--text-secondary); line-height: var(--lh-loose); }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.section { padding: var(--sp-16) 0; }
.section--sm { padding: var(--sp-10) 0; }
.bg-surface { background: var(--bg-surface); }
.bg-muted { background: var(--bg-muted); }
.bg-grad { background: var(--brand-grad); color: #fff; }

/* ---------- 4. BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  font-family: inherit; font-size: var(--fs-base); font-weight: 600; line-height: 1;
  padding: 12px 22px; border-radius: var(--r-md); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: all var(--dur) var(--ease); user-select: none;
}
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn--primary { background: var(--brand-grad); color: #fff; box-shadow: var(--shadow-brand); }
.btn--primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 14px 36px rgba(79,124,255,0.42); }
.btn--secondary { background: var(--bg-elevated); color: var(--text-primary); border-color: var(--border-color); box-shadow: var(--shadow-xs); }
.btn--secondary:hover { color: var(--text-primary); border-color: var(--brand-500); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--text-secondary); }
.btn--ghost:hover { color: var(--text-primary); background: var(--bg-muted); }
.btn--danger { background: var(--danger); color: #fff; }
.btn--danger:hover { color: #fff; filter: brightness(1.08); }
.btn--sm { padding: 8px 14px; font-size: var(--fs-sm); }
.btn--lg { padding: 15px 30px; font-size: var(--fs-md); }
.btn--block { width: 100%; }
.btn--icon { padding: 10px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

/* ---------- 5. FORM CONTROLS ---------- */
.field { margin-bottom: var(--sp-4); }
.field label { display: block; font-size: var(--fs-sm); font-weight: 600; color: var(--text-primary); margin-bottom: var(--sp-2); }
.input, .textarea, .select {
  width: 100%; font-family: inherit; font-size: var(--fs-base); color: var(--text-primary);
  background: var(--bg-surface); border: 1px solid var(--border-color);
  border-radius: var(--r-md); padding: 12px 14px; transition: all var(--dur) var(--ease);
  -webkit-appearance: none; appearance: none;
}
.input::placeholder, .textarea::placeholder { color: var(--text-tertiary); }
.input:focus, .textarea:focus, .select:focus {
  outline: none; border-color: var(--brand-500); box-shadow: var(--ring); background: var(--bg-surface);
}
.textarea { min-height: 130px; resize: vertical; }
.select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M3 5l4 4 4-4'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 38px; }

.input-group { position: relative; }
.input-group .input { padding-left: 42px; }
.input-group .input-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-tertiary); width: 18px; height: 18px; }
.hint { font-size: var(--fs-xs); color: var(--text-tertiary); margin-top: var(--sp-2); }

/* Checkbox */
.check { display: inline-flex; align-items: center; gap: var(--sp-2); cursor: pointer; font-size: var(--fs-sm); color: var(--text-secondary); }
.check input { width: 17px; height: 17px; accent-color: var(--brand-500); cursor: pointer; }

/* ---------- 6. CARDS ---------- */
.card {
  background: var(--bg-surface); border: 1px solid var(--border-color);
  border-radius: var(--r-lg); padding: var(--sp-6); box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur);
}
.card--hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--brand-500); }
.card--lg { padding: var(--sp-8); }
.card--bordered { border: 1px solid var(--border-color); box-shadow: none; }
.card__title { font-size: var(--fs-md); margin-bottom: var(--sp-2); }
.card__body { color: var(--text-secondary); font-size: var(--fs-sm); }

/* Glass card (hero) */
.glass {
  background: color-mix(in srgb, var(--bg-surface) 78%, transparent);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid color-mix(in srgb, var(--border-color) 60%, transparent);
  border-radius: var(--r-xl); box-shadow: var(--shadow-lg);
}

/* ---------- 7. ALERTS / NOTICES ---------- */
.alert {
  display: flex; align-items: flex-start; gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4); border-radius: var(--r-md);
  font-size: var(--fs-sm); margin-bottom: var(--sp-4); border: 1px solid transparent;
}
.alert__icon { flex-shrink: 0; margin-top: 2px; }
.alert--error { background: color-mix(in srgb, var(--danger) 12%, transparent); border-color: color-mix(in srgb, var(--danger) 30%, transparent); color: var(--danger); }
.alert--success { background: color-mix(in srgb, var(--success) 12%, transparent); border-color: color-mix(in srgb, var(--success) 30%, transparent); color: var(--success); }
.alert--warning { background: color-mix(in srgb, var(--warning) 14%, transparent); border-color: color-mix(in srgb, var(--warning) 35%, transparent); color: var(--warning); }
.alert--info { background: color-mix(in srgb, var(--info) 12%, transparent); border-color: color-mix(in srgb, var(--info) 30%, transparent); color: var(--info); }

/* ---------- 8. NAVBAR ---------- */
.navbar {
  position: sticky; top: 0; z-index: var(--z-nav);
  height: var(--nav-height); background: color-mix(in srgb, var(--bg-surface) 88%, transparent);
  backdrop-filter: blur(14px) saturate(150%); -webkit-backdrop-filter: blur(14px) saturate(150%);
  border-bottom: 1px solid var(--border-color);
}
.navbar__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: var(--sp-5); }
.navbar__brand { display: flex; align-items: center; gap: var(--sp-3); font-size: var(--fs-lg); font-weight: 800; color: var(--text-primary); letter-spacing: -0.5px; }
.navbar__brand:hover { color: var(--text-primary); }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px; background: var(--brand-grad);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 18px;
  box-shadow: var(--shadow-brand); flex-shrink: 0;
}
.brand-mark svg { width: 22px; height: 22px; }
.navbar__menu { display: flex; align-items: center; gap: var(--sp-1); }
.nav-link {
  position: relative; padding: 8px 14px; border-radius: var(--r-sm); font-size: var(--fs-sm);
  font-weight: 500; color: var(--text-secondary); transition: all var(--dur);
}
.nav-link:hover { color: var(--text-primary); background: var(--bg-muted); }
.nav-link.active { color: var(--brand-500); background: color-mix(in srgb, var(--brand-500) 10%, transparent); }
.nav-actions { display: flex; align-items: center; gap: var(--sp-3); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; color: var(--text-primary); padding: 6px; }
@media (max-width: 980px) {
  .nav-toggle { display: block; }
  .navbar__menu {
    position: fixed; top: var(--nav-height); left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: var(--bg-surface); border-bottom: 1px solid var(--border-color); padding: var(--sp-4);
    gap: var(--sp-1); box-shadow: var(--shadow-md); transform: translateY(-12px); opacity: 0; pointer-events: none; transition: all var(--dur);
  }
  .navbar__menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-link { padding: 12px 14px; }
}

/* Theme toggle switch */
.theme-toggle {
  position: relative; width: 56px; height: 30px; border-radius: var(--r-full);
  background: var(--bg-muted); border: 1px solid var(--border-color); cursor: pointer;
  display: flex; align-items: center; flex-shrink: 0; transition: background var(--dur);
}
.theme-toggle__knob {
  position: absolute; left: 3px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--bg-surface); box-shadow: var(--shadow-sm);
  display: grid; place-items: center; color: var(--brand-500);
  transition: transform var(--dur) var(--ease); 
}
[data-theme="dark"] .theme-toggle__knob { transform: translateX(26px); background: var(--brand-500); color: #fff; }
.theme-toggle__knob svg { width: 14px; height: 14px; }
.theme-toggle .icon-sun, .theme-toggle .icon-moon { position: absolute; top: 50%; transform: translateY(-50%); width: 14px; height: 14px; }
.theme-toggle .icon-sun { left: 8px; color: #f59e0b; }
.theme-toggle .icon-moon { right: 8px; color: var(--text-tertiary); }

/* ---------- 9. AUTH PAGES (login/register/forgot) ---------- */
.auth-wrap {
  min-height: calc(100vh - var(--nav-height));
  display: grid; grid-template-columns: 1fr 1fr; align-items: stretch;
}
@media (max-width: 900px) { .auth-wrap { grid-template-columns: 1fr; } }
.auth-aside {
  position: relative; background: var(--brand-grad); color: #fff; padding: var(--sp-12);
  display: flex; flex-direction: column; justify-content: space-between; overflow: hidden;
}
.auth-aside::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.18), transparent 50%),
              radial-gradient(circle at 10% 90%, rgba(0,212,160,0.25), transparent 45%);
}
.auth-aside > * { position: relative; z-index: 1; }
.auth-aside h2 { color: #fff; font-size: var(--fs-2xl); }
.auth-aside p { color: rgba(255,255,255,0.85); }
.auth-features { display: flex; flex-direction: column; gap: var(--sp-4); margin-top: var(--sp-6); }
.auth-feature { display: flex; gap: var(--sp-3); align-items: flex-start; }
.auth-feature__icon { width: 40px; height: 40px; border-radius: 12px; background: rgba(255,255,255,0.18); display: grid; place-items: center; flex-shrink: 0; }
.auth-feature__icon svg { width: 20px; height: 20px; color: #fff; }
.auth-feature h4 { color: #fff; margin-bottom: 2px; font-size: var(--fs-base); }
.auth-feature p { margin: 0; font-size: var(--fs-sm); color: rgba(255,255,255,0.8); }
.auth-stats { display: flex; gap: var(--sp-8); margin-top: auto; }
.auth-stat__num { font-size: var(--fs-xl); font-weight: 800; }
.auth-stat__label { font-size: var(--fs-sm); color: rgba(255,255,255,0.8); }
@media (max-width: 900px) { .auth-aside { display: none; } }

.auth-main { display: grid; place-items: center; padding: var(--sp-10) var(--sp-5); background: var(--bg-base); }
.auth-card { width: 100%; max-width: 420px; }
.auth-card h1 { font-size: var(--fs-2xl); margin-bottom: var(--sp-2); }
.auth-card .sub { color: var(--text-secondary); margin-bottom: var(--sp-6); }
.auth-divider { display: flex; align-items: center; gap: var(--sp-3); margin: var(--sp-6) 0; color: var(--text-tertiary); font-size: var(--fs-xs); }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border-color); }
.social-btns { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-3); }
.social-btn {
  display: flex; align-items: center; justify-content: center; gap: var(--sp-2);
  padding: 11px; border-radius: var(--r-md); border: 1px solid var(--border-color);
  background: var(--bg-surface); color: var(--text-primary); font-size: var(--fs-sm); font-weight: 600; cursor: pointer; transition: all var(--dur);
}
.social-btn:hover { border-color: var(--brand-500); transform: translateY(-1px); }
.auth-foot { text-align: center; margin-top: var(--sp-6); font-size: var(--fs-sm); color: var(--text-secondary); }
.auth-foot a { font-weight: 600; }

/* ---------- 10. HERO (homepage) ---------- */
.hero { position: relative; padding: var(--sp-16) 0 var(--sp-12); overflow: hidden; }
.hero__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero__bg::before {
  content: ''; position: absolute; top: -20%; right: -10%; width: 60%; height: 120%;
  background: radial-gradient(circle, rgba(79,124,255,0.18), transparent 60%);
}
[data-theme="dark"] .hero__bg::before { background: radial-gradient(circle, rgba(91,139,255,0.22), transparent 60%); }
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--sp-12); align-items: center; }
@media (max-width: 900px) { .hero__inner { grid-template-columns: 1fr; } }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: var(--sp-2); padding: 6px 14px; border-radius: var(--r-full);
  background: color-mix(in srgb, var(--brand-500) 12%, transparent); color: var(--brand-500);
  font-size: var(--fs-xs); font-weight: 600; margin-bottom: var(--sp-4);
}
.hero h1 { font-size: var(--fs-hero); font-weight: 800; letter-spacing: -1.5px; line-height: 1.05; margin-bottom: var(--sp-5); }
.hero h1 .grad { background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero .lead { font-size: var(--fs-md); max-width: 520px; margin-bottom: var(--sp-6); }
.hero__cta { display: flex; gap: var(--sp-3); flex-wrap: wrap; margin-bottom: var(--sp-6); }
.hero__meta { display: flex; gap: var(--sp-6); flex-wrap: wrap; }
.hero__meta-item { display: flex; align-items: center; gap: var(--sp-2); font-size: var(--fs-sm); color: var(--text-secondary); }
.hero__meta-item svg { width: 18px; height: 18px; color: var(--success); }

/* Upload zone mock */
.upload-zone {
  border: 2px dashed var(--border-strong); border-radius: var(--r-xl); padding: var(--sp-10);
  text-align: center; background: var(--bg-surface); transition: all var(--dur);
}
.upload-zone:hover { border-color: var(--brand-500); background: color-mix(in srgb, var(--brand-500) 4%, var(--bg-surface)); }
.upload-zone__icon {
  width: 64px; height: 64px; margin: 0 auto var(--sp-4); border-radius: 50%;
  background: var(--brand-grad); display: grid; place-items: center; box-shadow: var(--shadow-brand);
}
.upload-zone__icon svg { width: 30px; height: 30px; color: #fff; }
.upload-zone h3 { margin-bottom: var(--sp-2); }
.upload-progress { margin-top: var(--sp-5); text-align: left; }
.upload-progress__item { display: flex; align-items: center; gap: var(--sp-3); padding: var(--sp-3); border-radius: var(--r-md); background: var(--bg-muted); margin-bottom: var(--sp-2); }
.upload-progress__bar { flex: 1; height: 6px; border-radius: var(--r-full); background: var(--border-color); overflow: hidden; }
.upload-progress__fill { height: 100%; border-radius: var(--r-full); background: var(--brand-grad); }
.upload-progress__name { font-size: var(--fs-sm); font-weight: 500; min-width: 120px; }

/* ---------- 11. PRICING ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); margin-top: var(--sp-10); }
@media (max-width: 1100px) { .pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .pricing-grid { grid-template-columns: 1fr; } }
.price-card {
  background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--r-lg);
  padding: var(--sp-6); display: flex; flex-direction: column; transition: all var(--dur); position: relative;
}
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--brand-500); }
.price-card--featured { border-color: var(--brand-500); box-shadow: var(--shadow-md); }
.price-card--featured::before {
  content: 'MOST POPULAR'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--brand-grad); color: #fff; font-size: 10px; font-weight: 700; letter-spacing: 0.5px;
  padding: 5px 14px; border-radius: var(--r-full); box-shadow: var(--shadow-brand);
}
.price-card__plan { font-size: var(--fs-sm); font-weight: 600; color: var(--brand-500); text-transform: uppercase; letter-spacing: 0.5px; }
.price-card__price { display: flex; align-items: baseline; gap: 4px; margin: var(--sp-3) 0; }
.price-card__amount { font-size: 40px; font-weight: 800; color: var(--text-primary); }
.price-card__cur { font-size: var(--fs-md); color: var(--text-secondary); }
.price-card__per { font-size: var(--fs-sm); color: var(--text-tertiary); }
.price-card__features { margin: var(--sp-4) 0 var(--sp-6); flex: 1; }
.price-card__features li { display: flex; align-items: center; gap: var(--sp-2); padding: 7px 0; font-size: var(--fs-sm); color: var(--text-secondary); border-bottom: 1px solid var(--border-color); }
.price-card__features li:last-child { border-bottom: 0; }
.price-card__features svg { width: 16px; height: 16px; color: var(--success); flex-shrink: 0; }
.price-card__features li.no svg { color: var(--text-tertiary); }

/* ---------- 12. ACCOUNT DASHBOARD ---------- */
.dash { display: grid; grid-template-columns: var(--sidebar-width) 1fr; min-height: 100vh; }
@media (max-width: 900px) { .dash { grid-template-columns: 1fr; } }

.dash-sidebar {
  background: var(--bg-surface); border-right: 1px solid var(--border-color);
  padding: var(--sp-5); display: flex; flex-direction: column; gap: var(--sp-2); position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
@media (max-width: 900px) { .dash-sidebar { display: none; } }
.dash-sidebar__brand { display: flex; align-items: center; gap: var(--sp-3); padding: var(--sp-2) var(--sp-3) var(--sp-4); }
.dash-sidebar__brand span { font-size: var(--fs-md); font-weight: 800; }
.dash-nav__label { font-size: 10px; font-weight: 700; letter-spacing: 0.8px; color: var(--text-tertiary); text-transform: uppercase; padding: var(--sp-3) var(--sp-3) var(--sp-2); }
.dash-link {
  display: flex; align-items: center; gap: var(--sp-3); padding: 10px 12px; border-radius: var(--r-sm);
  color: var(--text-secondary); font-size: var(--fs-sm); font-weight: 500; transition: all var(--dur);
}
.dash-link svg { width: 18px; height: 18px; flex-shrink: 0; }
.dash-link:hover { color: var(--text-primary); background: var(--bg-muted); }
.dash-link.active { color: var(--brand-500); background: color-mix(in srgb, var(--brand-500) 12%, transparent); font-weight: 600; }
.dash-link .badge { margin-left: auto; font-size: 10px; padding: 2px 7px; border-radius: var(--r-full); background: var(--brand-500); color: #fff; font-weight: 700; }

.dash-main { display: flex; flex-direction: column; min-width: 0; }
.dash-topbar {
  height: var(--nav-height); display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
  padding: 0 var(--sp-6); background: color-mix(in srgb, var(--bg-surface) 85%, transparent);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: var(--z-nav);
}
.dash-search { flex: 1; max-width: 420px; }
.dash-topbar__actions { display: flex; align-items: center; gap: var(--sp-3); }
.icon-btn { width: 40px; height: 40px; border-radius: var(--r-md); border: 1px solid var(--border-color); background: var(--bg-surface); color: var(--text-secondary); display: grid; place-items: center; cursor: pointer; transition: all var(--dur); position: relative; }
.icon-btn:hover { color: var(--text-primary); border-color: var(--brand-500); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn .dot { position: absolute; top: 8px; right: 9px; width: 8px; height: 8px; border-radius: 50%; background: var(--danger); border: 2px solid var(--bg-surface); }
.avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--brand-grad); display: grid; place-items: center; color: #fff; font-weight: 700; font-size: var(--fs-sm); cursor: pointer; }

.dash-content { padding: var(--sp-6); flex: 1; }
.page-head { margin-bottom: var(--sp-6); }
.page-head h1 { font-size: var(--fs-xl); margin-bottom: 4px; }
.page-head p { margin: 0; font-size: var(--fs-sm); }

/* Stat tiles */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-4); margin-bottom: var(--sp-6); }
@media (max-width: 900px) { .stats-row { grid-template-columns: repeat(2, 1fr); } }
.stat-tile {
  background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--r-lg);
  padding: var(--sp-5); box-shadow: var(--shadow-xs); transition: all var(--dur); position: relative; overflow: hidden;
}
.stat-tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.stat-tile__icon { width: 44px; height: 44px; border-radius: var(--r-md); display: grid; place-items: center; margin-bottom: var(--sp-3); }
.stat-tile__icon svg { width: 22px; height: 22px; }
.stat-tile__icon--blue { background: color-mix(in srgb, var(--info) 15%, transparent); color: var(--info); }
.stat-tile__icon--green { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); }
.stat-tile__icon--purple { background: color-mix(in srgb, #8b5cf6 15%, transparent); color: #8b5cf6; }
.stat-tile__icon--orange { background: color-mix(in srgb, var(--warning) 15%, transparent); color: var(--warning); }
.stat-tile__num { font-size: var(--fs-xl); font-weight: 800; color: var(--text-primary); }
.stat-tile__label { font-size: var(--fs-sm); color: var(--text-secondary); }
.stat-tile__trend { font-size: var(--fs-xs); font-weight: 600; margin-top: var(--sp-2); }
.stat-tile__trend.up { color: var(--success); }
.stat-tile__trend.down { color: var(--danger); }

/* File manager toolbar + table */
.fm-toolbar { display: flex; align-items: center; gap: var(--sp-3); margin-bottom: var(--sp-4); flex-wrap: wrap; }
.fm-tabs { display: flex; gap: var(--sp-1); margin-bottom: var(--sp-4); border-bottom: 1px solid var(--border-color); }
.fm-tab { padding: 10px 16px; font-size: var(--fs-sm); font-weight: 600; color: var(--text-secondary); border-bottom: 2px solid transparent; cursor: pointer; transition: all var(--dur); }
.fm-tab:hover { color: var(--text-primary); }
.fm-tab.active { color: var(--brand-500); border-color: var(--brand-500); }

.file-table { width: 100%; border-collapse: collapse; }
.file-table th { text-align: left; font-size: var(--fs-xs); font-weight: 700; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--border-color); }
.file-table td { padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--border-color); font-size: var(--fs-sm); color: var(--text-secondary); }
.file-table tr { transition: background var(--dur); }
.file-table tbody tr:hover { background: var(--bg-muted); }
.file-table .file-name { display: flex; align-items: center; gap: var(--sp-3); color: var(--text-primary); font-weight: 500; }
.file-icon { width: 36px; height: 36px; border-radius: var(--r-sm); display: grid; place-items: center; flex-shrink: 0; }
.file-icon svg { width: 20px; height: 20px; }
.file-icon--img { background: color-mix(in srgb, #8b5cf6 14%, transparent); color: #8b5cf6; }
.file-icon--doc { background: color-mix(in srgb, var(--info) 14%, transparent); color: var(--info); }
.file-icon--vid { background: color-mix(in srgb, var(--danger) 14%, transparent); color: var(--danger); }
.file-icon--zip { background: color-mix(in srgb, var(--warning) 14%, transparent); color: var(--warning); }
.file-icon--aud { background: color-mix(in srgb, var(--success) 14%, transparent); color: var(--success); }
.badge-status { font-size: var(--fs-xs); padding: 3px 10px; border-radius: var(--r-full); font-weight: 600; }
.badge-status--active { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); }
.badge-status--paused { background: color-mix(in srgb, var(--warning) 15%, transparent); color: var(--warning); }

/* Storage meter */
.storage-meter { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--r-lg); padding: var(--sp-6); margin-bottom: var(--sp-6); }
.storage-meter__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--sp-3); }
.storage-meter__bar { height: 10px; border-radius: var(--r-full); background: var(--bg-muted); overflow: hidden; }
.storage-meter__fill { height: 100%; border-radius: var(--r-full); background: var(--brand-grad); transition: width 0.6s var(--ease); }
.storage-meter__legend { display: flex; gap: var(--sp-5); margin-top: var(--sp-3); font-size: var(--fs-xs); color: var(--text-secondary); flex-wrap: wrap; }
.storage-meter__legend span { display: inline-flex; align-items: center; gap: 6px; }
.storage-meter__legend i { width: 10px; height: 10px; border-radius: 3px; }

/* ---------- 13. FAQ / ACCORDION ---------- */
.accordion-item { border: 1px solid var(--border-color); border-radius: var(--r-md); margin-bottom: var(--sp-3); overflow: hidden; background: var(--bg-surface); transition: border-color var(--dur); }
.accordion-item.open { border-color: var(--brand-500); }
.accordion-q { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4); padding: var(--sp-4) var(--sp-5); cursor: pointer; font-weight: 600; font-size: var(--fs-base); color: var(--text-primary); }
.accordion-q__icon { width: 22px; height: 22px; flex-shrink: 0; color: var(--brand-500); transition: transform var(--dur); }
.accordion-item.open .accordion-q__icon { transform: rotate(45deg); }
.accordion-a { max-height: 0; overflow: hidden; transition: max-height var(--dur) var(--ease); }
.accordion-a__inner { padding: 0 var(--sp-5) var(--sp-5); color: var(--text-secondary); font-size: var(--fs-sm); line-height: var(--lh-loose); }

/* ---------- 14. FOOTER ---------- */
.footer { background: var(--bg-surface); border-top: 1px solid var(--border-color); padding: var(--sp-10) 0 var(--sp-6); margin-top: var(--sp-16); }
.footer__grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: var(--sp-8); margin-bottom: var(--sp-8); }
@media (max-width: 800px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer__grid { grid-template-columns: 1fr; } }
.footer__brand { font-size: var(--fs-lg); font-weight: 800; margin-bottom: var(--sp-3); display: flex; align-items: center; gap: var(--sp-3); }
.footer__col h4 { font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-tertiary); margin-bottom: var(--sp-4); }
.footer__col a { display: block; color: var(--text-secondary); font-size: var(--fs-sm); padding: 5px 0; transition: color var(--dur); }
.footer__col a:hover { color: var(--brand-500); }
.footer__bottom { border-top: 1px solid var(--border-color); padding-top: var(--sp-5); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--sp-3); font-size: var(--fs-sm); color: var(--text-tertiary); }
.footer__social { display: flex; gap: var(--sp-2); }
.footer__social a { width: 36px; height: 36px; border-radius: var(--r-sm); border: 1px solid var(--border-color); display: grid; place-items: center; color: var(--text-secondary); transition: all var(--dur); }
.footer__social a:hover { color: var(--brand-500); border-color: var(--brand-500); transform: translateY(-2px); }
.footer__social svg { width: 18px; height: 18px; }

/* ---------- 15. ERROR PAGES ---------- */
.error-wrap { min-height: calc(100vh - var(--nav-height)); display: grid; place-items: center; text-align: center; padding: var(--sp-10) var(--sp-5); }
.error-code { font-size: 140px; font-weight: 800; line-height: 1; background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: var(--sp-2); }
.error-wrap h2 { font-size: var(--fs-xl); margin-bottom: var(--sp-3); }
.error-wrap p { max-width: 480px; margin: 0 auto var(--sp-6); }

/* ---------- 16. UTILITY / MISC ---------- */
.divider { height: 1px; background: var(--border-color); margin: var(--sp-6) 0; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: var(--r-full); background: var(--bg-muted); font-size: var(--fs-xs); font-weight: 600; color: var(--text-secondary); }
.chip--brand { background: color-mix(in srgb, var(--brand-500) 12%, transparent); color: var(--brand-500); }
.kbd { font-family: var(--font-mono); font-size: var(--fs-xs); padding: 2px 7px; border-radius: 6px; background: var(--bg-muted); border: 1px solid var(--border-color); color: var(--text-secondary); }

/* Feature list (homepage) */
.feature-card { text-align: left; }
.feature-card__icon { width: 52px; height: 52px; border-radius: var(--r-md); display: grid; place-items: center; margin-bottom: var(--sp-4); }
.feature-card__icon svg { width: 26px; height: 26px; }

/* Copy input row */
.copy-row { display: flex; gap: var(--sp-2); }
.copy-row .input { font-family: var(--font-mono); font-size: var(--fs-sm); }

/* ==========================================================================
   17. DOWNLOAD PAGE COMPONENTS
   ========================================================================== */

/* Download page wrapper */
.rf-dl { max-width: 960px; margin: 0 auto; padding: var(--sp-10) var(--sp-5); }
.rf-dl__header { text-align: center; margin-bottom: var(--sp-8); }
.rf-dl__filename { font-size: var(--fs-xl); font-weight: 800; color: var(--text-primary); word-break: break-all; }

/* File info card — used on download pages */
.rf-filecard {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.rf-filecard__top {
  display: flex; align-items: center; gap: var(--sp-4); padding: var(--sp-5) var(--sp-6);
  background: var(--bg-surface-2); border-bottom: 1px solid var(--border-color);
}
.rf-filecard__icon {
  width: 56px; height: 64px; border-radius: var(--r-sm); flex-shrink: 0;
  background: var(--brand-grad); display: grid; place-items: center;
  color: #fff; font-size: var(--fs-xs); font-weight: 700; text-transform: uppercase;
  position: relative; letter-spacing: 0.5px;
}
.rf-filecard__icon::after {
  content: ''; position: absolute; top: 0; right: 0; width: 14px; height: 14px;
  background: var(--bg-surface); border-bottom-left-radius: var(--r-sm);
}
.rf-filecard__meta { flex: 1; min-width: 0; }
.rf-filecard__name { font-size: var(--fs-md); font-weight: 700; color: var(--text-primary); word-break: break-all; margin-bottom: 4px; }
.rf-filecard__sub { font-size: var(--fs-sm); color: var(--text-secondary); }
.rf-filecard__actions { display: flex; gap: var(--sp-2); flex-shrink: 0; }
.rf-filecard__actions a { color: var(--text-tertiary); font-size: var(--fs-md); transition: color var(--dur); padding: 6px; border-radius: var(--r-sm); }
.rf-filecard__actions a:hover { color: var(--brand-500); background: var(--bg-muted); }
.rf-filecard__body { padding: var(--sp-6); }

/* Download timer button area */
.rf-dl-action { text-align: center; padding: var(--sp-6); }
.rf-dl-action .btn { min-width: 280px; justify-content: center; }
@media (max-width: 575px) { .rf-dl-action .btn { min-width: 100%; } }

/* Download metadata grid */
.rf-dl-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); margin: var(--sp-5) 0; }
@media (max-width: 700px) { .rf-dl-meta { grid-template-columns: 1fr; } }
.rf-dl-meta__item { text-align: center; padding: var(--sp-4); background: var(--bg-surface-2); border-radius: var(--r-md); border: 1px solid var(--border-color); }
.rf-dl-meta__label { font-size: var(--fs-xs); color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.rf-dl-meta__value { font-size: var(--fs-base); font-weight: 600; color: var(--text-primary); }

/* Download info list (status sidebar) */
.rf-dl-infolist { list-style: none; padding: 0; margin: 0; border: 1px solid var(--border-color); border-radius: var(--r-md); overflow: hidden; background: var(--bg-surface); }
.rf-dl-infolist li { display: flex; justify-content: space-between; align-items: center; padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--border-color); font-size: var(--fs-sm); }
.rf-dl-infolist li:last-child { border-bottom: 0; }
.rf-dl-infolist li strong { color: var(--text-secondary); display: inline-flex; align-items: center; gap: 6px; }
.rf-dl-infolist li span { color: var(--text-primary); font-weight: 600; }

/* About text section */
.rf-dl-about { margin-top: var(--sp-5); }
.rf-dl-about h1 { font-size: var(--fs-md); font-weight: 700; margin-bottom: var(--sp-2); color: var(--text-primary); }
.rf-dl-about p { font-size: var(--fs-sm); color: var(--text-secondary); line-height: var(--lh-loose); }

/* Compare table */
.rf-compare {
  width: 100%; border-collapse: collapse; background: var(--bg-surface);
  border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}
.rf-compare th, .rf-compare td { padding: var(--sp-4) var(--sp-5); text-align: left; border-bottom: 1px solid var(--border-color); font-size: var(--fs-sm); }
.rf-compare tbody tr:last-child td { border-bottom: 0; }
.rf-compare tbody tr:nth-child(even) { background: var(--bg-surface-2); }
.rf-compare th { font-weight: 700; color: var(--text-primary); }
.rf-compare th.rf-compare__head { font-size: var(--fs-base); }
.rf-compare td.rf-compare__label { color: var(--text-secondary); font-weight: 500; }
.rf-compare td strong { color: var(--brand-500); }
.rf-compare__free, .rf-compare__reg { color: var(--text-secondary); }
@media (max-width: 700px) {
  .rf-compare__mobile-hide { display: none; }
}

/* Compare download cards (slow vs fast) */
.rf-compare-cards { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); margin-top: var(--sp-8); }
@media (max-width: 700px) { .rf-compare-cards { grid-template-columns: 1fr; } }
.rf-compare-card {
  background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--r-lg);
  padding: var(--sp-6); box-shadow: var(--shadow-sm); transition: transform var(--dur), box-shadow var(--dur), border-color var(--dur);
}
.rf-compare-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.rf-compare-card--featured { border-color: var(--brand-500); box-shadow: var(--shadow-md); }
.rf-compare-card h4 { font-size: var(--fs-md); font-weight: 700; margin-bottom: var(--sp-2); color: var(--text-primary); }
.rf-compare-card p { font-size: var(--fs-sm); color: var(--text-secondary); margin-bottom: var(--sp-5); line-height: var(--lh-normal); }

/* Captcha card */
.rf-captcha-card {
  background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--r-lg);
  box-shadow: var(--shadow-md); padding: var(--sp-8); text-align: center; max-width: 520px; margin: 0 auto;
}
.rf-captcha-card__title { font-size: var(--fs-lg); font-weight: 700; margin-bottom: var(--sp-2); color: var(--text-primary); }
.rf-captcha-card__sub { font-size: var(--fs-sm); color: var(--text-secondary); margin-bottom: var(--sp-5); }
.rf-captcha-card__field { margin-bottom: var(--sp-5); }
.rf-captcha-card .input { text-align: center; font-size: var(--fs-md); letter-spacing: 2px; }

/* File info page — download URLs */
.rf-dl-urls { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--r-lg); padding: var(--sp-6); margin-top: var(--sp-5); }
.rf-dl-urls h4 { font-size: var(--fs-md); font-weight: 700; margin-bottom: var(--sp-4); color: var(--text-primary); }
.rf-dl-urls__item { padding: var(--sp-3) 0; border-bottom: 1px solid var(--border-color); }
.rf-dl-urls__item:last-child { border-bottom: 0; }
.rf-dl-urls__label { font-size: var(--fs-xs); color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.rf-dl-urls__code { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--text-secondary); background: var(--bg-muted); border-radius: var(--r-sm); padding: var(--sp-3); overflow-x: auto; white-space: pre-wrap; word-break: break-all; }

/* Advert wrapper */
.rf-advert { text-align: center; padding: var(--sp-4) 0; }

/* Download page two-column layout */
.rf-dl-layout { display: grid; grid-template-columns: 1fr 280px; gap: var(--sp-6); }
@media (max-width: 900px) { .rf-dl-layout { grid-template-columns: 1fr; } }
.rf-dl-sidebar { display: flex; flex-direction: column; gap: var(--sp-4); }

/* Animations */
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp 0.5s var(--ease) both; }
.fade-up:nth-child(2) { animation-delay: 0.06s; }
.fade-up:nth-child(3) { animation-delay: 0.12s; }
.fade-up:nth-child(4) { animation-delay: 0.18s; }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
.pulse { animation: pulse 1.6s var(--ease) infinite; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}