/* ================================================================
   LinkTracker Pro — app.css v2.0
   Sistema de Análisis y Seguimiento de Enlaces Web
   ================================================================ */

/* ---- Variables ---- */
:root {
  --sidebar-w: 260px;
  --sidebar-collapsed-w: 70px;
  --topbar-h: 62px;

  --bg-page:    #f0f2fa;
  --bg-card:    #ffffff;
  --bg-sidebar: #181b2e;
  --bg-sidebar-active: rgba(102,126,234,0.15);
  --bg-sidebar-hover:  rgba(255,255,255,0.07);

  --primary:   #667eea;
  --secondary: #764ba2;
  --success:   #22c55e;
  --warning:   #f59e0b;
  --danger:    #ef4444;
  --info:      #0ea5e9;

  --text:      #1e2536;
  --text-muted:#8b92a5;
  --text-light:#c5cad8;
  --border:    #e4e8f0;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.09);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);

  --transition: all 0.22s cubic-bezier(.4,0,.2,1);
}

[data-bs-theme="dark"] {
  --bg-page:    #10121f;
  --bg-card:    #181b2e;
  --bg-sidebar: #0c0e1a;
  --text:       #e2e8f8;
  --text-muted: #7480a0;
  --border:     #252a42;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-page);
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.6;
  overflow-x: hidden;
  margin: 0;
}

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

/* ================================================================
   SIDEBAR
   ================================================================ */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  z-index: 1050;
  transition: var(--transition);
  overflow: hidden;
  box-shadow: 4px 0 24px rgba(0,0,0,0.15);
}

/* Brand */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 1.25rem;
  height: var(--topbar-h);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  flex-shrink: 0;
}

.brand-logo {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; color: #fff;
  flex-shrink: 0;
}

.brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  letter-spacing: -0.01em;
}

/* Nav */
.sidebar-nav {
  flex: 1;
  padding: 1rem 0.7rem;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.08) transparent;
}

.nav-label {
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.28);
  padding: 0.3rem 0.65rem;
  margin-bottom: 0.2rem;
  white-space: nowrap;
}

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.6);
  font-weight: 500;
  font-size: 0.875rem;
  transition: var(--transition);
  white-space: nowrap;
  margin-bottom: 2px;
  border-left: 3px solid transparent;
}

.sidebar-nav .nav-link i {
  font-size: 1.05rem;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.sidebar-nav .nav-link:hover {
  background: var(--bg-sidebar-hover);
  color: #fff;
}

.sidebar-nav .nav-link.active {
  background: var(--bg-sidebar-active);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 0.875rem 0.8rem;
  border-top: 1px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.user-info { display: flex; align-items: center; gap: 9px; flex: 1; min-width: 0; }

.user-avatar {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700; color: #fff;
  flex-shrink: 0;
}

.user-details { min-width: 0; }
.user-name  { display: block; font-size: 0.8rem; font-weight: 600; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role  { display: block; font-size: 0.68rem; color: rgba(255,255,255,0.38); text-transform: capitalize; }

.btn-logout {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.4);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  flex-shrink: 0;
}
.btn-logout:hover { background: rgba(239,68,68,0.18); color: var(--danger); }

/* Sidebar collapsed */
.sidebar.collapsed { width: var(--sidebar-collapsed-w); }
.sidebar.collapsed .brand-name,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .user-details { display: none; }
.sidebar.collapsed .nav-link { justify-content: center; padding: 0.65rem; border-left: none; border-radius: var(--radius-sm); }
.sidebar.collapsed .nav-link i { width: auto; }
.sidebar.collapsed .sidebar-footer { justify-content: center; }
.sidebar.collapsed .user-info { justify-content: center; }
.sidebar.collapsed .btn-logout { display: none; }

/* Overlay mobile */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 1040;
  backdrop-filter: blur(2px);
}

/* ================================================================
   MAIN CONTENT
   ================================================================ */
.main-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

body.sidebar-collapsed .main-content { margin-left: var(--sidebar-collapsed-w); }

/* ================================================================
   TOP NAVBAR
   ================================================================ */
.top-navbar {
  height: var(--topbar-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.navbar-left { display: flex; align-items: center; gap: 14px; }
.navbar-right { display: flex; align-items: center; gap: 8px; }

.sidebar-toggle {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  background: var(--bg-page);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.sidebar-toggle:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

.navbar-time {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  background: var(--bg-page);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.breadcrumb { font-size: 0.8rem; margin: 0; }
.breadcrumb-item a { color: var(--text-muted); }
.breadcrumb-item.active { color: var(--text); font-weight: 500; }
.breadcrumb-item + .breadcrumb-item::before { color: var(--text-light); }

/* ================================================================
   PAGE CONTENT
   ================================================================ */
.page-content { flex: 1; padding: 1.75rem; }

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title   { font-size: 1.4rem; font-weight: 700; margin: 0; color: var(--text); }
.page-subtitle{ font-size: 0.82rem; color: var(--text-muted); margin: 2px 0 0; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.flash-container { padding: 1rem 1.75rem 0; }

/* ================================================================
   CARD / PANEL
   ================================================================ */
.card-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border);
  min-height: 52px;
}

.panel-title  { font-size: 0.875rem; font-weight: 600; margin: 0; color: var(--text); }
.panel-body   { padding: 1.25rem; }
.panel-footer { padding: 0.8rem 1.25rem; border-top: 1px solid var(--border); background: var(--bg-page); }

/* ================================================================
   KPI CARDS
   ================================================================ */
.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.2rem;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.kpi-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.kpi-primary::after { background: linear-gradient(180deg, var(--primary), var(--secondary)); }
.kpi-success::after { background: linear-gradient(180deg, var(--success), #16a34a); }
.kpi-info::after    { background: linear-gradient(180deg, var(--info), #0284c7); }
.kpi-warning::after { background: linear-gradient(180deg, var(--warning), #d97706); }

.kpi-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.kpi-icon {
  width: 46px; height: 46px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.kpi-primary .kpi-icon { background: rgba(102,126,234,0.1); color: var(--primary); }
.kpi-success .kpi-icon { background: rgba(34,197,94,0.1);   color: var(--success); }
.kpi-info    .kpi-icon { background: rgba(14,165,233,0.1);  color: var(--info); }
.kpi-warning .kpi-icon { background: rgba(245,158,11,0.1);  color: var(--warning); }

.kpi-body  { flex: 1; min-width: 0; }
.kpi-value { font-size: 1.65rem; font-weight: 800; line-height: 1.1; color: var(--text); }
.kpi-label { font-size: 0.76rem; color: var(--text-muted); margin-top: 1px; font-weight: 500; }

.kpi-trend { font-size: 0.9rem; font-weight: 700; }
.kpi-trend.up   { color: var(--success); }
.kpi-trend.down { color: var(--danger); }

/* ================================================================
   TABLES
   ================================================================ */
.table-modern { font-size: 0.855rem; margin: 0; }
.table-modern thead th {
  background: var(--bg-page);
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
  border-top: none;
  padding: 0.7rem 1rem;
  white-space: nowrap;
}
.table-modern tbody td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.table-modern tbody tr:last-child td { border-bottom: none; }
.table-modern tbody tr:hover { background: rgba(102,126,234,0.03); }

/* ================================================================
   BUTTONS
   ================================================================ */
.btn-primary-grad {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  color: #fff !important;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1.15rem;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(102,126,234,0.3);
  display: inline-flex; align-items: center;
}
.btn-primary-grad:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(102,126,234,0.42); }

.btn-warning-grad {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border: none; color: #fff !important; font-weight: 600;
  border-radius: var(--radius-sm); padding: 0.5rem 1.15rem;
  transition: var(--transition);
  display: inline-flex; align-items: center;
}
.btn-warning-grad:hover { transform: translateY(-2px); }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted) !important;
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex; align-items: center;
}
.btn-ghost:hover { background: var(--bg-page); color: var(--text) !important; border-color: var(--text-muted); }

.btn-danger-soft {
  background: rgba(239,68,68,0.1); border: none;
  color: var(--danger) !important; border-radius: var(--radius-sm);
  padding: 0.42rem 0.9rem; font-weight: 500; transition: var(--transition);
  display: inline-flex; align-items: center;
}
.btn-danger-soft:hover { background: var(--danger); color: #fff !important; }

.btn-success-soft {
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.2);
  color: var(--success) !important;
  border-radius: var(--radius-sm); padding: 0.42rem 0.9rem;
  font-weight: 500; transition: var(--transition);
  display: inline-flex; align-items: center;
}
.btn-success-soft:hover { background: var(--success); color: #fff !important; border-color: var(--success); }

/* Action buttons */
.action-btns { display: flex; gap: 5px; }
.btn-action {
  width: 30px; height: 30px;
  border: none; border-radius: 7px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem; transition: var(--transition);
}
.btn-action.btn-primary { background: rgba(102,126,234,0.1); color: var(--primary); }
.btn-action.btn-info    { background: rgba(14,165,233,0.1);  color: var(--info); }
.btn-action.btn-warning { background: rgba(245,158,11,0.1);  color: var(--warning); }
.btn-action.btn-danger  { background: rgba(239,68,68,0.1);   color: var(--danger); }
.btn-action:hover { transform: scale(1.18); filter: brightness(1.1); }

/* Bootstrap btn-success override */
.btn-success {
  background: linear-gradient(135deg, var(--success), #16a34a) !important;
  border: none !important; font-weight: 600;
  border-radius: var(--radius-sm); box-shadow: 0 4px 12px rgba(34,197,94,0.28);
}
.btn-success:hover { transform: translateY(-2px) !important; }

/* ================================================================
   BADGES
   ================================================================ */
.bg-primary-soft   { background: rgba(102,126,234,0.1) !important; }
.bg-success-soft   { background: rgba(34,197,94,0.1)   !important; }
.bg-danger-soft    { background: rgba(239,68,68,0.1)   !important; }
.bg-warning-soft   { background: rgba(245,158,11,0.1)  !important; }
.bg-info-soft      { background: rgba(14,165,233,0.1)  !important; }
.bg-secondary-soft { background: rgba(139,146,165,0.1) !important; }

.text-primary  { color: var(--primary)   !important; }
.text-success  { color: var(--success)   !important; }
.text-danger   { color: var(--danger)    !important; }
.text-warning  { color: var(--warning)   !important; }
.text-info     { color: var(--info)      !important; }
.text-muted    { color: var(--text-muted) !important; }

/* ================================================================
   FORMS
   ================================================================ */
.form-control-modern,
.form-select.form-control-modern {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.52rem 0.9rem;
  font-size: 0.875rem;
  transition: var(--transition);
  background: var(--bg-card);
  color: var(--text);
}
.form-control-modern:focus,
.form-select.form-control-modern:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102,126,234,0.14);
  outline: none;
  background: var(--bg-card);
  color: var(--text);
}
.form-label  { font-size: 0.84rem; margin-bottom: 0.35rem; color: var(--text); }
.form-hint   { font-size: 0.76rem; color: var(--text-muted); margin-top: 4px; }

.input-group-text.bg-soft {
  background: var(--bg-page) !important;
  border-color: var(--border);
  color: var(--text-muted);
}

/* ================================================================
   LOGIN PAGE
   ================================================================ */
.login-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 2.5rem 2.25rem;
  box-shadow: var(--shadow-lg);
}
.login-header { text-align: center; margin-bottom: 2rem; }
.login-icon {
  width: 60px; height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; color: #fff;
  margin: 0 auto 1rem;
  box-shadow: 0 8px 24px rgba(102,126,234,0.35);
}
.login-footer {
  text-align: center; margin-top: 1.5rem;
  padding-top: 1rem; border-top: 1px solid var(--border);
}

/* ================================================================
   TOP LINKS
   ================================================================ */
.top-links-list {}
.top-link-item {
  display: flex; align-items: center; gap: 12px;
  padding: 0.8rem 1.25rem;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.top-link-item:last-child { border-bottom: none; }
.top-link-item:hover { background: rgba(102,126,234,0.025); }

.top-link-rank {
  width: 26px; height: 26px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; flex-shrink: 0;
}
.rank-1 { background: linear-gradient(135deg,#f59e0b,#d97706); color:#fff; }
.rank-2 { background: linear-gradient(135deg,#94a3b8,#64748b); color:#fff; }
.rank-3 { background: linear-gradient(135deg,#cd7f32,#a0522d); color:#fff; }
.rank-4, .rank-5 { background: var(--bg-page); color: var(--text-muted); border: 1px solid var(--border); }

.top-link-info { flex: 1; min-width: 0; }
.top-link-name { font-size: 0.855rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top-link-code { font-size: 0.74rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top-link-code a { color: var(--primary); }

/* ================================================================
   SHORT URL
   ================================================================ */
.short-url-wrap { display: flex; align-items: center; gap: 5px; }
.short-url { font-size: 0.78rem; color: var(--primary); }
.btn-copy {
  background: none; border: none;
  color: var(--text-muted); cursor: pointer;
  padding: 2px 5px; border-radius: 5px;
  transition: var(--transition); font-size: 0.8rem;
}
.btn-copy:hover { background: rgba(102,126,234,0.1); color: var(--primary); }
.btn-copy.copied { color: var(--success); }

.dest-url { font-size: 0.77rem; color: var(--text-muted); }
.code-link { font-family: 'Courier New', monospace; font-size: 0.83rem; }
.ip-code {
  font-size: 0.76rem;
  background: var(--bg-page);
  padding: 2px 7px; border-radius: 5px;
  border: 1px solid var(--border);
  font-family: 'Courier New', monospace;
}

/* ================================================================
   RADIO CARDS
   ================================================================ */
.radio-card {
  display: flex; align-items: center; gap: 8px;
  padding: 0.55rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer; font-size: 0.875rem; font-weight: 500;
  transition: var(--transition);
}
.radio-card input { display: none; }
.radio-card.checked,
.radio-card:has(input:checked) { border-color: var(--primary); background: rgba(102,126,234,0.06); }

/* ================================================================
   URL PREVIEW
   ================================================================ */
.url-preview {
  background: rgba(102,126,234,0.05);
  border: 1.5px dashed var(--primary);
  border-radius: var(--radius-sm);
  padding: 1rem;
}
.preview-label  { font-size: 0.73rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.preview-item   { display: flex; align-items: center; gap: 8px; }
.preview-badge  { font-size: 0.68rem; background: var(--primary); color: #fff; padding: 2px 8px; border-radius: 20px; white-space: nowrap; flex-shrink: 0; }
.preview-url    { font-size: 0.8rem; color: var(--text); word-break: break-all; font-family: monospace; }

/* ================================================================
   TIP STEPS
   ================================================================ */
.tip-steps { display: flex; flex-direction: column; gap: 12px; }
.tip-step  { display: flex; align-items: flex-start; gap: 12px; font-size: 0.875rem; }
.tip-num {
  width: 22px; height: 22px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem; font-weight: 700;
  flex-shrink: 0; margin-top: 1px;
}

/* ================================================================
   STATS INFO BOX
   ================================================================ */
.stats-info-box {
  background: var(--bg-page);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  display: flex; gap: 20px; flex-wrap: wrap;
  border: 1px solid var(--border);
}
.stat-info-item { display: flex; align-items: center; gap: 8px; font-size: 0.84rem; }

/* ================================================================
   QR
   ================================================================ */
.qr-container {
  display: flex; align-items: center; justify-content: center;
  min-height: 200px;
}
.qr-container img {
  border-radius: var(--radius-sm);
  border: 8px solid #fff;
  box-shadow: var(--shadow-md);
}

/* ================================================================
   DELETE MODAL
   ================================================================ */
.delete-icon {
  width: 58px; height: 58px;
  background: rgba(239,68,68,0.1);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; color: var(--danger);
  margin: 0 auto;
}

.modal-modern { border: none; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.modal-modern .modal-header { border-bottom: 1px solid var(--border); }
.modal-modern .modal-footer { border-top: 1px solid var(--border); }

/* ================================================================
   NAV TABS MODERN
   ================================================================ */
.nav-tabs-modern {
  display: flex; gap: 3px;
  border-bottom: 2px solid var(--border);
  flex-wrap: wrap; padding-bottom: 0;
}
.nav-tab {
  background: none; border: none;
  padding: 0.6rem 1.2rem;
  font-size: 0.875rem; font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: pointer; transition: var(--transition); white-space: nowrap;
}
.nav-tab:hover { color: var(--primary); background: rgba(102,126,234,0.05); }
.nav-tab.active {
  color: var(--primary); font-weight: 600;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-bottom: 2px solid var(--bg-card);
  margin-bottom: -2px;
}

/* ================================================================
   PROFILE
   ================================================================ */
.profile-avatar {
  width: 78px; height: 78px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.9rem; font-weight: 700; color: #fff;
  box-shadow: 0 8px 24px rgba(102,126,234,0.35);
}

.security-tips {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
  font-size: 0.875rem;
}

/* Password Strength */
.strength-bar {
  height: 5px; background: var(--border);
  border-radius: 3px; overflow: hidden; margin-bottom: 4px;
}
.strength-fill {
  height: 100%; border-radius: 3px;
  transition: width 0.4s ease, background 0.4s ease; width: 0;
}
.strength-label { font-size: 0.74rem; font-weight: 600; }

/* System Info */
.sys-info-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.875rem;
}
.sys-info-item {
  display: flex; flex-direction: column; gap: 2px;
  padding: 0.7rem 0.9rem;
  background: var(--bg-page); border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.sys-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); }
.sys-value { font-size: 0.855rem; font-weight: 600; color: var(--text); word-break: break-all; }

/* ================================================================
   LINK BANNER
   ================================================================ */
.link-info-banner {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.25rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; box-shadow: var(--shadow-sm);
}
.link-banner-left  { display: flex; align-items: flex-start; gap: 14px; flex: 1; min-width: 0; }
.link-banner-right { flex-shrink: 0; }
.link-banner-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: #fff; flex-shrink: 0;
}
.link-qr-thumb { border-radius: var(--radius-sm); border: 4px solid #fff; box-shadow: var(--shadow-sm); }
.banner-url { font-size: 0.79rem; }

/* ================================================================
   RANK BADGE
   ================================================================ */
.rank-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px;
  background: var(--bg-page); border: 1px solid var(--border);
  border-radius: 50%; font-size: 0.74rem; font-weight: 700;
}

/* ================================================================
   EXPORT CARDS
   ================================================================ */
.export-card { text-align: center; padding: 2rem 1.75rem; }
.export-icon {
  width: 70px; height: 70px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.9rem; margin: 0 auto;
}
.col-info-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--bg-page); border: 1px solid var(--border);
  font-size: 0.8rem;
}
.col-info-item i { font-size: 0.95rem; margin-top: 1px; flex-shrink: 0; }

/* ================================================================
   EMPTY STATE
   ================================================================ */
.empty-chart {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 2.5rem 1rem; text-align: center; color: var(--text-muted);
}
.empty-chart i { opacity: 0.3; }

/* ================================================================
   PAGINATION
   ================================================================ */
.pagination { gap: 3px; }
.page-link {
  border-radius: var(--radius-sm) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  padding: 0.32rem 0.65rem;
  font-size: 0.81rem;
  background: var(--bg-card) !important;
}
.page-item.active .page-link {
  background: linear-gradient(135deg, var(--primary), var(--secondary)) !important;
  border-color: transparent !important;
  color: #fff !important;
}
.page-link:hover { background: var(--bg-page) !important; }

/* ================================================================
   ANIMATIONS
   ================================================================ */
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.spin { animation: spin 0.65s linear !important; display: inline-block; }

@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}
.live-dot { animation: livePulse 2s ease-in-out infinite; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.card-panel, .kpi-card {
  animation: fadeInUp 0.3s ease both;
}

/* ================================================================
   UTILITY
   ================================================================ */
.fw-500 { font-weight: 500 !important; }
.fw-600 { font-weight: 600 !important; }
.fw-700 { font-weight: 700 !important; }
.fw-800 { font-weight: 800 !important; }

/* ================================================================
   SCROLLBAR
   ================================================================ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-light); }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 991px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.show { display: block; }
  .main-content { margin-left: 0 !important; }
  body.sidebar-collapsed .main-content { margin-left: 0 !important; }
}

@media (max-width: 767px) {
  .page-content { padding: 1rem; }
  .top-navbar   { padding: 0 1rem; }
  .kpi-value    { font-size: 1.4rem; }
  .panel-body   { padding: 1rem; }
  .link-info-banner { flex-direction: column; }
  .link-banner-right { display: none; }
  .sys-info-grid { grid-template-columns: 1fr; }
}

@media (max-width: 575px) {
  .page-header { gap: 8px; }
  .page-title  { font-size: 1.2rem; }
  .action-btns { gap: 4px; }
  .btn-action  { width: 28px; height: 28px; }
}