/* ============================================================
   DNS Manager Pro — Main Stylesheet
   Dark Glassmorphism Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --bg-base:        #080b14;
  --bg-surface:     #0f1320;
  --bg-card:        rgba(255,255,255,0.04);
  --bg-card-hover:  rgba(255,255,255,0.07);
  --bg-input:       rgba(255,255,255,0.06);
  --border:         rgba(255,255,255,0.08);
  --border-focus:   rgba(99,102,241,0.6);

  --primary:        #6366f1;
  --primary-light:  #818cf8;
  --secondary:      #8b5cf6;
  --accent:         #06b6d4;
  --success:        #10b981;
  --warning:        #f59e0b;
  --danger:         #ef4444;
  --info:           #3b82f6;

  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #475569;

  --sidebar-w:      260px;
  --topbar-h:       64px;
  --radius-sm:      8px;
  --radius-md:      12px;
  --radius-lg:      16px;
  --radius-xl:      24px;

  --shadow-sm:      0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:      0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg:      0 20px 48px rgba(0,0,0,0.5);
  --shadow-glow:    0 0 30px rgba(99,102,241,0.2);

  --transition:     all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ── Background Gradient ──────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 0%, rgba(99,102,241,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(139,92,246,0.07) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ── Layout ─────────────────────────────────────────────────── */
.layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: var(--transition);
}

.sidebar-logo {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-glow);
}

.sidebar-logo-text { font-weight: 700; font-size: 1rem; line-height: 1.2; }
.sidebar-logo-text small { font-weight: 400; font-size: 0.7rem; color: var(--text-muted); display: block; }

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }

.nav-section-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 16px 8px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  margin-bottom: 2px;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: rgba(99,102,241,0.15);
  color: var(--primary-light);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--primary);
  border-radius: 2px;
}

.nav-icon { width: 18px; font-size: 1rem; text-align: center; }

.nav-badge {
  margin-left: auto;
  background: var(--primary);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.user-card {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.user-name { font-weight: 600; }
.user-role { font-size: 0.72rem; color: var(--text-muted); }

.logout-btn {
  margin-left: auto;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 1.1rem;
  transition: var(--transition);
  padding: 4px;
}
.logout-btn:hover { color: var(--danger); }

/* ── Main Content ─────────────────────────────────────────── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Topbar ──────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: rgba(255,255,255,0.02);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title { font-size: 1.1rem; font-weight: 700; flex: 1; }
.topbar-title small { font-weight: 400; color: var(--text-muted); font-size: 0.8rem; display: block; }

.topbar-actions { display: flex; align-items: center; gap: 10px; }

/* ── Page Content ────────────────────────────────────────────── */
.page-content {
  flex: 1;
  padding: 28px;
}

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}

.card:hover { border-color: rgba(99,102,241,0.2); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Stat Cards ──────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}

.stat-card.primary::before { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
.stat-card.success::before { background: linear-gradient(90deg, var(--success), #34d399); }
.stat-card.warning::before { background: linear-gradient(90deg, var(--warning), #fcd34d); }
.stat-card.danger::before  { background: linear-gradient(90deg, var(--danger), #f87171); }
.stat-card.accent::before  { background: linear-gradient(90deg, var(--accent), #67e8f9); }

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

.stat-icon {
  font-size: 1.5rem;
  margin-bottom: 12px;
  display: inline-block;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-change {
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--success);
}

/* ── Grid Layouts ────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }

/* ── Table ───────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
}

table.dns-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.dns-table thead tr {
  background: rgba(255,255,255,0.04);
}

.dns-table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}

.dns-table td {
  padding: 13px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: middle;
}

.dns-table tbody tr { transition: var(--transition); }
.dns-table tbody tr:hover { background: var(--bg-card-hover); }
.dns-table tbody tr:last-child td { border-bottom: none; }

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-A      { background: rgba(99,102,241,0.2);  color: var(--primary-light); }
.badge-AAAA   { background: rgba(139,92,246,0.2);  color: #c4b5fd; }
.badge-CNAME  { background: rgba(6,182,212,0.2);   color: #67e8f9; }
.badge-MX     { background: rgba(245,158,11,0.2);  color: #fcd34d; }
.badge-TXT    { background: rgba(16,185,129,0.2);  color: #6ee7b7; }
.badge-NS     { background: rgba(239,68,68,0.2);   color: #fca5a5; }
.badge-PTR    { background: rgba(59,130,246,0.2);  color: #93c5fd; }
.badge-SRV    { background: rgba(236,72,153,0.2);  color: #f9a8d4; }

.badge-success { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger  { background: rgba(239,68,68,0.15);  color: var(--danger); }
.badge-info    { background: rgba(59,130,246,0.15); color: var(--info); }
.badge-muted   { background: rgba(255,255,255,0.06); color: var(--text-muted); }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(99,102,241,0.4); }

.btn-secondary {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-card-hover); border-color: rgba(255,255,255,0.15); }

.btn-danger { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.btn-danger:hover { background: rgba(239,68,68,0.25); }

.btn-success { background: rgba(16,185,129,0.15); color: var(--success); border: 1px solid rgba(16,185,129,0.3); }
.btn-success:hover { background: rgba(16,185,129,0.25); }

.btn-icon { width: 34px; height: 34px; padding: 0; justify-content: center; }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; }
.btn-lg { padding: 12px 28px; font-size: 1rem; }

/* ── Forms ───────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="search"],
select,
textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  padding: 10px 14px;
  transition: var(--transition);
  outline: none;
  -webkit-appearance: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
  background: rgba(255,255,255,0.07);
}

select { cursor: pointer; }
select option { background: #1a1d2e; }
textarea { resize: vertical; min-height: 80px; }

.input-group {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}
.input-group > * { flex: 1; }
.input-group > .btn { flex: 0; }

.form-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 5px; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

/* ── Alerts / Flash ──────────────────────────────────────────── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.alert-success { background: rgba(16,185,129,0.1);  border: 1px solid rgba(16,185,129,0.3);  color: #6ee7b7; }
.alert-error   { background: rgba(239,68,68,0.1);   border: 1px solid rgba(239,68,68,0.3);   color: #fca5a5; }
.alert-warning { background: rgba(245,158,11,0.1);  border: 1px solid rgba(245,158,11,0.3);  color: #fcd34d; }
.alert-info    { background: rgba(59,130,246,0.1);  border: 1px solid rgba(59,130,246,0.3);  color: #93c5fd; }

/* ── Modal ───────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  max-width: 520px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  animation: scaleIn 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.modal-title { font-size: 1.1rem; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 1.4rem; cursor: pointer; padding: 4px; line-height: 1; }
.modal-close:hover { color: var(--text-primary); }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* ── DoH Status Indicator ────────────────────────────────────── */
.doh-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.doh-status.active {
  background: rgba(16,185,129,0.12);
  color: var(--success);
  border: 1px solid rgba(16,185,129,0.25);
}

.doh-status.inactive {
  background: rgba(239,68,68,0.12);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,0.25);
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.85); }
}

/* ── Login Page ──────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background:
    radial-gradient(ellipse 100% 80% at 0% 0%, rgba(99,102,241,0.12) 0%, transparent 50%),
    radial-gradient(ellipse 80% 60% at 100% 100%, rgba(139,92,246,0.1) 0%, transparent 50%),
    var(--bg-base);
}

.login-card {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  max-width: 420px;
  width: 100%;
  box-shadow: var(--shadow-lg), 0 0 60px rgba(99,102,241,0.08);
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 16px;
  box-shadow: var(--shadow-glow);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

.login-logo h1 { font-size: 1.5rem; font-weight: 800; }
.login-logo p  { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; }

/* ── Monospace ───────────────────────────────────────────────── */
.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--accent);
}

/* ── Charts ──────────────────────────────────────────────────── */
.chart-wrap { position: relative; height: 220px; }

/* ── QR Code block ───────────────────────────────────────────── */
.qr-wrap {
  background: white;
  padding: 12px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.qr-wrap img { display: block; }

/* ── Code blocks ─────────────────────────────────────────────── */
.code-block {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: #e2e8f0;
  overflow-x: auto;
  position: relative;
}

.code-block .copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 0.7rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.code-block .copy-btn:hover { color: var(--text-primary); background: var(--bg-card-hover); }

/* ── Progress bar ────────────────────────────────────────────── */
.progress {
  height: 6px;
  background: var(--bg-input);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transition: width 0.5s ease;
}

/* ── Tabs ────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: 20px;
}

.tab-btn {
  flex: 1;
  padding: 9px 16px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.tab-btn.active {
  background: rgba(99,102,241,0.2);
  color: var(--primary-light);
}

/* ── Search bar ──────────────────────────────────────────────── */
.search-wrap {
  position: relative;
  flex: 1;
  max-width: 340px;
}
.search-wrap input {
  padding-left: 38px;
}
.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  pointer-events: none;
}

/* ── Pagination ──────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
.page-btn:hover, .page-btn.active {
  background: rgba(99,102,241,0.2);
  border-color: rgba(99,102,241,0.4);
  color: var(--primary-light);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }
  .sidebar { transform: translateX(-260px); width: 260px; }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .page-content { padding: 16px; }
  .login-card { padding: 32px 24px; }
}

/* ── Tooltip ─────────────────────────────────────────────────── */
[data-tip] { position: relative; cursor: help; }
[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e2235;
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-size: 0.75rem;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: var(--transition);
  z-index: 999;
}
[data-tip]:hover::after { opacity: 1; }

/* ── Animations ──────────────────────────────────────────────── */
.fade-in { animation: fadeIn 0.4s ease; }
.slide-up { animation: slideUp 0.3s ease; }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* ── Empty state ─────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}
.empty-state-icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.5; }
.empty-state h3 { font-size: 1rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.empty-state p  { font-size: 0.85rem; }

/* ── Dividers ────────────────────────────────────────────────── */
hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ── Utility ─────────────────────────────────────────────────── */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.8rem; }
.text-xs { font-size: 0.72rem; }
.font-mono { font-family: 'JetBrains Mono', monospace; }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary-light); }
.fw-bold { font-weight: 700; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px; }
.hidden { display: none !important; }