/* ============================================================
   css/main.css  —  Login System Design System
   Default: Light mode  |  Dark mode via [data-theme="dark"]
   Fonts: DM Sans (body) + Syne (display/headings)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ══════════════════════════════════════════════════════════
   LIGHT MODE (default — applied to :root)
   ══════════════════════════════════════════════════════════ */
:root {
  --bg:           #f4f6fb;
  --bg-card:      #ffffff;
  --bg-hover:     #eef1f8;
  --border:       #e2e7f0;
  --border-light: #d0d8ea;
  --text:         #111827;
  --text-muted:   #4b5675;
  --text-dim:     #9aa3b8;
  --accent:       #e8940e;
  --accent-glow:  rgba(232,148,14,0.14);
  --accent-dark:  #c47a08;
  --admin-hue:    #d44a4a;
  --user-hue:     #2e8fc4;
  --success:      #22b86e;
  --danger:       #d44a4a;
  --info:         #2e8fc4;
  --radius-sm:    6px;
  --radius:       12px;
  --radius-lg:    20px;
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --shadow-card:  0 2px 20px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-btn:   0 2px 10px rgba(232,148,14,0.28);
  --table-head-bg: rgba(0,0,0,0.03);
}

/* ══════════════════════════════════════════════════════════
   DARK MODE — applied when <html data-theme="dark">
   ══════════════════════════════════════════════════════════ */
[data-theme="dark"] {
  --bg:           #0c0f17;
  --bg-card:      #131824;
  --bg-hover:     #1a2035;
  --border:       #1e2840;
  --border-light: #283354;
  --text:         #e8edf8;
  --text-muted:   #6b7a9a;
  --text-dim:     #4a567a;
  --accent:       #f5a623;
  --accent-glow:  rgba(245,166,35,0.18);
  --accent-dark:  #c4831a;
  --admin-hue:    #e05c5c;
  --user-hue:     #5cb8e0;
  --success:      #3dd68c;
  --danger:       #e05c5c;
  --info:         #5cb8e0;
  --shadow-card:  0 4px 32px rgba(0,0,0,0.45);
  --shadow-btn:   0 2px 12px rgba(245,166,35,0.25);
  --table-head-bg: rgba(0,0,0,0.18);
}

/* ── Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s, color 0.3s;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; }

/* Smooth theme transitions on themed elements */
.card, .sidebar, .topbar, .stat-card, .section-card,
.nav-item, .input-wrap input, .welcome-banner, .info-item,
.sidebar-brand, .sidebar-user, .sidebar-footer, .data-table th,
.data-table td, .hint-box, .badge, .sid-code, .btn-danger {
  transition: background-color 0.3s, border-color 0.3s, color 0.3s, box-shadow 0.3s;
}

/* ── Noise overlay ──────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.018;
  pointer-events: none;
  z-index: 0;
}

/* ── Background accent orb ─────────────────────────────── */
.page-bg-accent {
  position: fixed;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ══════════════════════════════════════════════════════════
   THEME TOGGLE BUTTON
   ══════════════════════════════════════════════════════════ */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  transition: opacity 0.25s, transform 0.3s;
  line-height: 0;
}

/* Light mode default: show moon so user can click to go dark */
.theme-toggle .icon-moon { opacity: 1;  transform: rotate(0deg) scale(1); }
.theme-toggle .icon-sun  { opacity: 0;  transform: rotate(90deg) scale(0.6); }

/* Dark mode: flip to show sun so user can click to go light */
[data-theme="dark"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.6); }
[data-theme="dark"] .theme-toggle .icon-sun  { opacity: 1; transform: rotate(0deg) scale(1); }

/* Fixed position on the login page */
.login-theme-toggle {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 200;
}

/* ══════════════════════════════════════════════════════════
   LOGIN PAGE
   ══════════════════════════════════════════════════════════ */
.page-center {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.login-wrap { width: 100%; max-width: 420px; }

.login-brand { text-align: center; margin-bottom: 2.5rem; }
.login-brand .brand-icon { width: 56px; height: 56px; margin: 0 auto 1rem; }

.login-brand h1 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.login-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.35rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent 70%);
}

/* ── Forms ──────────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.input-wrap { position: relative; }

.input-wrap .input-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
  width: 18px; height: 18px;
}

.input-wrap input {
  width: 100%;
  padding: 0.75rem 0.9rem 0.75rem 2.65rem;
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
}

.input-wrap input::placeholder { color: var(--text-dim); }
.input-wrap input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
  box-shadow: var(--shadow-btn);
  letter-spacing: 0.02em;
}

[data-theme="dark"] .btn-primary { color: #0c0f17; }

.btn-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 20px rgba(232,148,14,0.38);
  transform: translateY(-1px);
  text-decoration: none;
  color: #fff;
}

[data-theme="dark"] .btn-primary:hover { color: #0c0f17; }
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  font-size: 0.88rem;
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  text-decoration: none;
}

.btn-danger {
  background: rgba(212,74,74,0.08);
  border: 1px solid rgba(212,74,74,0.25);
  color: var(--danger);
}

[data-theme="dark"] .btn-danger {
  background: rgba(224,92,92,0.12);
  border-color: rgba(224,92,92,0.3);
}

.btn-danger:hover {
  background: rgba(212,74,74,0.15);
  border-color: var(--danger);
  text-decoration: none;
  color: var(--danger);
}

/* ── Alerts ─────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.alert-error {
  background: rgba(212,74,74,0.08);
  border: 1px solid rgba(212,74,74,0.22);
  color: #b83232;
}

[data-theme="dark"] .alert-error {
  background: rgba(224,92,92,0.10);
  border-color: rgba(224,92,92,0.25);
  color: #f09090;
}

.alert-success {
  background: rgba(34,184,110,0.08);
  border: 1px solid rgba(34,184,110,0.22);
  color: #1a7a4e;
}

[data-theme="dark"] .alert-success {
  background: rgba(61,214,140,0.10);
  border-color: rgba(61,214,140,0.25);
  color: #6de8aa;
}

.alert svg { flex-shrink: 0; margin-top: 1px; }

/* ── Hint box ───────────────────────────────────────────── */
.hint-box {
  background: rgba(232,148,14,0.06);
  border: 1px dashed rgba(232,148,14,0.28);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  margin-top: 1.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.hint-box strong { color: var(--accent); }

/* ── Login footer ───────────────────────────────────────── */
.login-footer {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ── Submit spinner ─────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }

.spinner {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

[data-theme="dark"] .spinner {
  border-color: rgba(0,0,0,0.2);
  border-top-color: #0c0f17;
}

.btn-primary.loading .spinner { display: block; }

/* ══════════════════════════════════════════════════════════
   DASHBOARD LAYOUT
   ══════════════════════════════════════════════════════════ */
.dash-layout { display: flex; min-height: 100vh; }

/* ── Sidebar ────────────────────────────────────────────── */
.sidebar {
  width: 240px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s, background-color 0.3s, border-color 0.3s;
}

.sidebar-brand {
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-brand .brand-icon { width: 30px; height: 30px; flex-shrink: 0; }

.sidebar-brand span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.sidebar-user {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── Avatar ─────────────────────────────────────────────── */
.avatar {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
  letter-spacing: 0.04em;
}

.avatar-admin {
  background: rgba(212,74,74,0.10);
  color: var(--admin-hue);
  border: 1px solid rgba(212,74,74,0.20);
}

.avatar-user {
  background: rgba(46,143,196,0.10);
  color: var(--user-hue);
  border: 1px solid rgba(46,143,196,0.20);
}

[data-theme="dark"] .avatar-admin {
  background: rgba(224,92,92,0.15);
  border-color: rgba(224,92,92,0.25);
}

[data-theme="dark"] .avatar-user {
  background: rgba(92,184,224,0.15);
  border-color: rgba(92,184,224,0.25);
}

.sidebar-user-info { overflow: hidden; }

.sidebar-user-info .name {
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-info .role-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 3px;
  margin-top: 3px;
}

.role-badge-admin { background: rgba(212,74,74,0.10); color: var(--admin-hue); }
.role-badge-user  { background: rgba(46,143,196,0.10); color: var(--user-hue); }

[data-theme="dark"] .role-badge-admin { background: rgba(224,92,92,0.15); }
[data-theme="dark"] .role-badge-user  { background: rgba(92,184,224,0.15); }

/* ── Nav ────────────────────────────────────────────────── */
.sidebar-nav {
  flex: 1;
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.nav-section-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.75rem 0.75rem 0.35rem;
  margin-top: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all 0.15s;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
}

.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text);
  text-decoration: none;
}

.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: rgba(232,148,14,0.18);
}

.nav-item.active svg { color: var(--accent); }

.sidebar-footer {
  padding: 1rem 0.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* ── Main area ──────────────────────────────────────────── */
.dash-main {
  margin-left: 240px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Top bar ────────────────────────────────────────────── */
.topbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.topbar-actions { display: flex; align-items: center; gap: 0.6rem; }

/* ── Dash content ───────────────────────────────────────── */
.dash-content { padding: 2rem; flex: 1; }

/* ── Stat cards ─────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, background-color 0.3s, box-shadow 0.3s;
}

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

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  height: 3px; width: 100%;
}

.stat-card.c-amber::after { background: var(--accent); }
.stat-card.c-red::after   { background: var(--admin-hue); }
.stat-card.c-blue::after  { background: var(--user-hue); }
.stat-card.c-green::after { background: var(--success); }

.stat-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.stat-icon.amber { background: var(--accent-glow);        color: var(--accent); }
.stat-icon.red   { background: rgba(212,74,74,0.10);      color: var(--admin-hue); }
.stat-icon.blue  { background: rgba(46,143,196,0.10);     color: var(--user-hue); }
.stat-icon.green { background: rgba(34,184,110,0.10);     color: var(--success); }

[data-theme="dark"] .stat-icon.red   { background: rgba(224,92,92,0.12); }
[data-theme="dark"] .stat-icon.blue  { background: rgba(92,184,224,0.12); }
[data-theme="dark"] .stat-icon.green { background: rgba(61,214,140,0.12); }

.stat-icon svg { width: 20px; height: 20px; }

.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── Section cards ──────────────────────────────────────── */
.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.5rem;
  transition: background-color 0.3s, border-color 0.3s;
}

.section-card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-card-header h2 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-card-header h2 svg { width: 18px; height: 18px; color: var(--accent); }

/* ── Data table ─────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }

.data-table th {
  text-align: left;
  padding: 0.75rem 1.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  background: var(--table-head-bg);
}

.data-table td {
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--bg-hover); color: var(--text); }

/* ── Status dots ────────────────────────────────────────── */
.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8rem;
}

.status-dot::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.active::before   { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.inactive::before { background: var(--text-dim); }

/* ── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-admin { background: rgba(212,74,74,0.10); color: var(--admin-hue); }
.badge-user  { background: rgba(46,143,196,0.10); color: var(--user-hue); }

[data-theme="dark"] .badge-admin { background: rgba(224,92,92,0.15); }
[data-theme="dark"] .badge-user  { background: rgba(92,184,224,0.15); }

/* ── Welcome banner ─────────────────────────────────────── */
.welcome-banner {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(232,148,14,0.04) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.welcome-banner::after {
  content: '';
  position: absolute;
  right: -30px; top: -30px;
  width: 150px; height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.welcome-banner h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.welcome-banner h2 span { color: var(--accent); }
.welcome-banner p { color: var(--text-muted); font-size: 0.9rem; max-width: 520px; }

/* ── Info grid ──────────────────────────────────────────── */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.info-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
}

.info-item label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: block;
  margin-bottom: 0.3rem;
}

.info-item span { font-size: 0.92rem; font-weight: 500; color: var(--text); }

/* ── Session id code ────────────────────────────────────── */
.sid-code {
  font-family: monospace;
  font-size: 0.72rem;
  color: var(--text-dim);
  background: var(--bg-hover);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--border);
}

/* ── Profile card ───────────────────────────────────────── */
.profile-avatar {
  width: 60px; height: 60px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  flex-shrink: 0;
  background: rgba(46,143,196,0.12);
  color: var(--user-hue);
  border: 1px solid rgba(46,143,196,0.22);
}

[data-theme="dark"] .profile-avatar {
  background: rgba(92,184,224,0.15);
  border-color: rgba(92,184,224,0.25);
}

/* ── Mobile menu btn ────────────────────────────────────── */
.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s;
}

.mobile-menu-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .dash-main { margin-left: 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .dash-content { padding: 1.25rem; }
  .topbar { padding: 0.85rem 1.25rem; }
  .mobile-menu-btn { display: flex; align-items: center; }
  .data-table th:nth-child(n+4),
  .data-table td:nth-child(n+4) { display: none; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .card { padding: 1.5rem 1.25rem; }
}