/* ══════════════════════════════════════════
   CRYPTOCHE — THEME SYSTEM
   Dark + Light avec switch
   ══════════════════════════════════════════ */

/* ── DARK THEME (default) ── */
:root,
[data-theme="dark"] {
  --bg-body: #0a0e17;
  --bg-surface: #111827;
  --bg-surface-hover: #1a2332;
  --bg-elevated: #060a12;
  --bg-input: #0d1117;
  --border-default: #1e293b;
  --border-light: #2a3a4e;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-dim: #64748b;
  --text-inverse: #0f172a;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-glow: rgba(59, 130, 246, 0.15);
  --accent: #06b6d4;
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --purple: #8b5cf6;
  --pink: #ec4899;
  --gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-accent: linear-gradient(135deg, #06b6d4, #3b82f6);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
  --navbar-bg: rgba(10,14,23,0.85);
  --sidebar-bg: #060a12;
  --header-bg: rgba(10,14,23,0.9);
  --code-bg: #1e293b;
  --scrollbar-track: #060a12;
  --scrollbar-thumb: #2a3a4e;
  color-scheme: dark;
}

/* ── LIGHT THEME ── */
[data-theme="light"] {
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-input: #f1f5f9;
  --border-default: #e2e8f0;
  --border-light: #cbd5e1;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-dim: #94a3b8;
  --text-inverse: #f1f5f9;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.1);
  --accent: #0891b2;
  --success: #059669;
  --success-bg: rgba(5, 150, 105, 0.08);
  --warning: #d97706;
  --warning-bg: rgba(217, 119, 6, 0.08);
  --danger: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.08);
  --purple: #7c3aed;
  --pink: #db2777;
  --gradient: linear-gradient(135deg, #2563eb, #7c3aed);
  --gradient-accent: linear-gradient(135deg, #0891b2, #2563eb);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.1);
  --navbar-bg: rgba(248,250,252,0.9);
  --sidebar-bg: #ffffff;
  --header-bg: rgba(248,250,252,0.95);
  --code-bg: #f1f5f9;
  --scrollbar-track: #f1f5f9;
  --scrollbar-thumb: #cbd5e1;
  color-scheme: light;
}

/* ══════════════════════════════════════════
   GLOBAL BASE (theme-aware)
   ══════════════════════════════════════════ */

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s, color .3s;
}

a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-hover); }

/* ── Theme Switch ── */
.theme-switch {
  display: flex; align-items: center; gap: 8px; cursor: pointer;
  user-select: none; -webkit-user-select: none;
}
.theme-switch-track {
  position: relative; width: 48px; height: 26px;
  background: var(--border-light); border-radius: 13px;
  transition: background .3s;
}
.theme-switch-track::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 20px; height: 20px; border-radius: 50%;
  background: #fff; transition: transform .3s;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
[data-theme="dark"] .theme-switch-track { background: var(--primary); }
[data-theme="dark"] .theme-switch-track::after { transform: translateX(22px); }
[data-theme="light"] .theme-switch-track { background: var(--primary); }
[data-theme="light"] .theme-switch-track::after { transform: translateX(22px); }
[data-theme="dark"] .theme-switch .icon-sun { display: none; }
[data-theme="dark"] .theme-switch .icon-moon { display: inline; }
[data-theme="light"] .theme-switch .icon-sun { display: inline; }
[data-theme="light"] .theme-switch .icon-moon { display: none; }
.theme-switch .icon-sun,
.theme-switch .icon-moon { font-size: 16px; }
.theme-switch-label { font-size: 12px; color: var(--text-dim); font-weight: 500; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 24px; border: none; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; cursor: pointer; transition: all .2s; text-decoration: none; }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 4px 16px rgba(59,130,246,.3); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(59,130,246,.4); color: #fff; }
.btn-outline { background: transparent; color: var(--text-primary); border: 1px solid var(--border-light); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-surface); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }

/* ── Cards ── */
.card { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius); padding: 24px; transition: all .25s; }
.card:hover { border-color: var(--border-light); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border-default); }
.card-header h3 { font-size: 16px; font-weight: 600; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border-default); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border-default); }
th { background: var(--bg-elevated); color: var(--text-dim); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; white-space: nowrap; }
td { font-size: 14px; color: var(--text-primary); }
tr:hover td { background: var(--bg-surface-hover); }
tr:last-child td { border-bottom: none; }

/* ── Forms ── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; }
.form-control { width: 100%; padding: 10px 14px; background: var(--bg-input); border: 1px solid var(--border-default); border-radius: var(--radius-sm); color: var(--text-primary); font-size: 14px; transition: border-color .2s, box-shadow .2s; outline: none; }
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.form-control::placeholder { color: var(--text-dim); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* ── Badges ── */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger); }
.badge-info    { background: var(--primary-glow); color: var(--primary); }
.badge-neutral { background: rgba(148,163,184,.1); color: var(--text-secondary); }

/* ── Stat Cards ── */
.stat-card { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius); padding: 24px; position: relative; overflow: hidden; transition: all .25s; }
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; }
.stat-card.blue::before { background: var(--primary); }
.stat-card.green::before { background: var(--success); }
.stat-card.purple::before { background: var(--purple); }
.stat-card.orange::before { background: var(--warning); }
.stat-card .stat-icon { width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 16px; }
.stat-card.blue .stat-icon { background: var(--primary-glow); color: var(--primary); }
.stat-card.green .stat-icon { background: var(--success-bg); color: var(--success); }
.stat-card.purple .stat-icon { background: rgba(139,92,246,.1); color: var(--purple); }
.stat-card.orange .stat-icon { background: var(--warning-bg); color: var(--warning); }
.stat-card .stat-value { font-size: 28px; font-weight: 700; margin-bottom: 4px; }
.stat-card .stat-label { font-size: 13px; color: var(--text-secondary); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }

/* ── Theme Transition ── */
.theme-transitioning,
.theme-transitioning *,
.theme-transitioning *::before,
.theme-transitioning *::after {
  transition: background .4s, color .3s, border-color .3s, box-shadow .3s !important;
}

/* ── Utilities ── */
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger  { color: var(--danger) !important; }
.text-muted   { color: var(--text-secondary) !important; }
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.font-mono    { font-family: 'JetBrains Mono', monospace; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; } .gap-3 { gap: 24px; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.w-full { width: 100%; }
.hidden { display: none !important; }

:root {
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --sidebar-w: 260px;
  --header-h: 64px;
}