/* ═══════════════════════════════════════════════════════════════
   Cross Broker Admin — Premium SaaS Dashboard
   Design System aligned with main app
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Primary palette */
  --admin-primary: #2563eb;
  --admin-primary-dark: #1d4ed8;
  --admin-primary-light: #3b82f6;
  --admin-primary-50: #eff6ff;
  --admin-primary-100: #dbeafe;
  --admin-primary-rgb: 37, 99, 235;

  /* Semantic */
  --admin-success: #10b981;
  --admin-success-light: #d1fae5;
  --admin-warning: #f59e0b;
  --admin-warning-light: #fef3c7;
  --admin-danger: #ef4444;
  --admin-danger-light: #fee2e2;
  --admin-info: #06b6d4;
  --admin-info-light: #cffafe;

  /* Sidebar */
  --admin-sidebar-bg: #0f172a;
  --admin-sidebar-text: #94a3b8;
  --admin-sidebar-hover: rgba(255,255,255,.06);
  --admin-sidebar-active-bg: rgba(37,99,235,.15);
  --admin-sidebar-active-text: #60a5fa;
  --admin-sidebar-width: 250px;

  /* Layout */
  --admin-bg: #f8fafc;
  --admin-card: #ffffff;
  --admin-text: #1e293b;
  --admin-muted: #64748b;
  --admin-border: #e2e8f0;
  --admin-border-light: #f1f5f9;

  /* Radius */
  --admin-radius: 8px;
  --admin-radius-md: 10px;
  --admin-radius-lg: 12px;
  --admin-radius-xl: 16px;

  /* Shadows */
  --admin-shadow-xs: 0 1px 2px rgba(0,0,0,.05);
  --admin-shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --admin-shadow: 0 4px 6px -1px rgba(0,0,0,.05), 0 2px 4px -2px rgba(0,0,0,.05);
  --admin-shadow-md: 0 8px 16px -4px rgba(0,0,0,.08), 0 4px 6px -2px rgba(0,0,0,.03);
  --admin-shadow-lg: 0 16px 32px -8px rgba(0,0,0,.1);
  --admin-shadow-focus: 0 0 0 3px rgba(var(--admin-primary-rgb),.2);

  /* Motion */
  --admin-ease: cubic-bezier(.4,0,.2,1);
  --admin-duration: 200ms;
  --admin-duration-slow: 300ms;
}

* { box-sizing: border-box; }

html { font-size: 14px; }
@media (min-width: 768px) { html { font-size: 15px; } }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--admin-text);
  background: var(--admin-bg);
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--admin-primary-100);
  color: var(--admin-primary-dark);
}

:focus-visible {
  outline: 2px solid var(--admin-primary);
  outline-offset: 2px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ═══ SIDEBAR ═══ */
.admin-sidebar {
  width: var(--admin-sidebar-width);
  min-height: 100vh;
  background: var(--admin-sidebar-bg);
  color: var(--admin-sidebar-text);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition: transform var(--admin-duration-slow) var(--admin-ease);
  border-right: 1px solid rgba(255,255,255,.04);
}

.sidebar-brand {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,.06);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.sidebar-brand span {
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -.01em;
}
.sidebar-brand small {
  background: var(--admin-primary);
  color: #fff;
  font-size: .55rem;
  font-weight: 700;
  padding: .15rem .45rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.sidebar-nav {
  list-style: none;
  padding: .5rem 0;
  margin: 0;
  flex: 1;
}

.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .6rem .85rem;
  color: var(--admin-sidebar-text);
  text-decoration: none;
  font-size: .88rem;
  font-weight: 450;
  letter-spacing: -.005em;
  border-radius: var(--admin-radius);
  margin: 1px .5rem;
  transition: all 150ms var(--admin-ease);
  position: relative;
}

.sidebar-nav li a:hover {
  background: var(--admin-sidebar-hover);
  color: #e2e8f0;
}

.sidebar-nav li a.active {
  background: var(--admin-sidebar-active-bg);
  color: var(--admin-sidebar-active-text);
  font-weight: 550;
}

.sidebar-nav li a.active::before {
  content: '';
  position: absolute;
  left: -.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--admin-primary-light);
  border-radius: 0 3px 3px 0;
}

.sidebar-nav li a i {
  font-size: 1.1rem;
  width: 1.2rem;
  text-align: center;
  opacity: .7;
  transition: opacity 150ms var(--admin-ease);
}

.sidebar-nav li a:hover i,
.sidebar-nav li a.active i { opacity: 1; }

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid rgba(255,255,255,.06);
}

.admin-name {
  display: block;
  color: rgba(255,255,255,.4);
  font-size: .72rem;
  font-weight: 500;
  margin-bottom: .5rem;
  letter-spacing: -.005em;
}

.logout-link {
  color: #f87171;
  font-size: .8rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: .4rem;
  font-weight: 500;
  transition: color 150ms var(--admin-ease);
}
.logout-link:hover { color: #fca5a5; }

/* ═══ MAIN ═══ */
.admin-main {
  margin-left: var(--admin-sidebar-width);
  flex: 1;
  min-height: 100vh;
  padding: 1.75rem 2rem;
  background: var(--admin-bg);
}

/* ═══ PAGE HEADER ═══ */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: .75rem;
}
.page-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  color: var(--admin-text);
  letter-spacing: -.025em;
}

/* ═══ STAT CARDS ═══ */
.stat-card {
  background: var(--admin-card);
  border-radius: var(--admin-radius-lg);
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--admin-border);
  border-left: 4px solid;
  box-shadow: var(--admin-shadow-xs);
  transition: all var(--admin-duration) var(--admin-ease);
}
.stat-card:hover {
  box-shadow: var(--admin-shadow-md);
  transform: translateY(-2px);
}
.stat-card.primary { border-left-color: var(--admin-primary); }
.stat-card.success { border-left-color: var(--admin-success); }
.stat-card.warning { border-left-color: var(--admin-warning); }
.stat-card.danger { border-left-color: var(--admin-danger); }
.stat-card.info { border-left-color: var(--admin-info); }

.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--admin-text);
}
.stat-label {
  font-size: .72rem;
  color: var(--admin-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-top: .3rem;
  font-weight: 500;
}

/* ═══ CARDS ═══ */
.admin-card {
  background: var(--admin-card);
  border-radius: var(--admin-radius-lg);
  border: 1px solid var(--admin-border);
  box-shadow: var(--admin-shadow-xs);
  padding: 1.5rem;
  transition: all var(--admin-duration) var(--admin-ease);
}

.admin-card:hover {
  box-shadow: var(--admin-shadow);
}

.admin-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--admin-border);
}
.admin-card-header h5 {
  margin: 0;
  font-weight: 650;
  font-size: 1rem;
  letter-spacing: -.01em;
}

/* ═══ TABLES ═══ */
.admin-table {
  width: 100%;
  font-size: .88rem;
}
.admin-table th {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--admin-muted);
  font-weight: 600;
  padding: .7rem .85rem;
  border-bottom: 2px solid var(--admin-border);
  white-space: nowrap;
  background: var(--admin-bg);
}
.admin-table td {
  padding: .7rem .85rem;
  border-bottom: 1px solid var(--admin-border-light);
  vertical-align: middle;
  color: #334155;
}
.admin-table tbody tr {
  transition: background 100ms var(--admin-ease);
}
.admin-table tbody tr:hover { background: var(--admin-primary-50); }
.admin-table tbody tr.cursor-pointer { cursor: pointer; }

/* ═══ UTILITIES ═══ */
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fw-550 { font-weight: 550; }

/* ═══ BADGES ═══ */
.badge-status {
  font-size: .72rem;
  font-weight: 600;
  padding: .3rem .65rem;
  border-radius: 6px;
  letter-spacing: .005em;
}
.badge-activo { background: var(--admin-success-light); color: #059669; }
.badge-suspendido { background: var(--admin-danger-light); color: #dc2626; }
.badge-prueba { background: var(--admin-warning-light); color: #d97706; }
.badge-vencido { background: var(--admin-danger-light); color: #dc2626; }
.badge-corriente { background: var(--admin-success-light); color: #059669; }
.badge-sinplan { background: var(--admin-border-light); color: var(--admin-muted); }

/* ═══ FORMS ═══ */
.form-label {
  font-size: .82rem;
  font-weight: 550;
  color: var(--admin-text);
  letter-spacing: -.005em;
  margin-bottom: .35rem;
}
.form-control,
.form-select {
  border-radius: var(--admin-radius);
  border: 1px solid #cbd5e1;
  font-size: .88rem;
  padding: .55rem .85rem;
  transition: all var(--admin-duration) var(--admin-ease);
  box-shadow: var(--admin-shadow-xs);
}
.form-control:hover,
.form-select:hover { border-color: #94a3b8; }
.form-control:focus,
.form-select:focus {
  border-color: var(--admin-primary);
  box-shadow: var(--admin-shadow-focus);
}

/* ═══ BUTTONS ═══ */
.btn-admin {
  background: var(--admin-primary);
  color: #fff;
  border: none;
  border-radius: var(--admin-radius);
  padding: .5rem 1.15rem;
  font-weight: 600;
  font-size: .85rem;
  letter-spacing: -.005em;
  transition: all var(--admin-duration) var(--admin-ease);
  box-shadow: 0 1px 2px rgba(var(--admin-primary-rgb),.2);
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.btn-admin:hover {
  background: var(--admin-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(var(--admin-primary-rgb),.25);
}
.btn-admin:active { transform: translateY(0); }

/* ═══ LOGIN ═══ */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: #020617;
  position: relative;
  overflow: hidden;
}

.login-wrapper::before {
  content: '';
  position: absolute;
  width: 140%;
  height: 140%;
  top: -20%;
  left: -20%;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(37,99,235,.12) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 60%, rgba(139,92,246,.08) 0%, transparent 50%);
  animation: admin-bg-drift 12s ease-in-out infinite alternate;
}

@keyframes admin-bg-drift {
  0% { transform: translate(0,0); }
  100% { transform: translate(-2%,1%); }
}

.login-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: rgba(255,255,255,.03);
  border-radius: var(--admin-radius-xl);
  box-shadow:
    0 0 0 1px rgba(255,255,255,.08),
    0 24px 64px -16px rgba(0,0,0,.5),
    0 8px 24px -8px rgba(0,0,0,.3);
  overflow: hidden;
  position: relative;
  z-index: 1;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.login-header {
  background: transparent;
  padding: 2.5rem 1.5rem 1.25rem;
  text-align: center;
  color: #fff;
}
.login-header h3 {
  font-weight: 800;
  margin-bottom: .25rem;
  letter-spacing: -.02em;
}
.login-header p {
  color: rgba(255,255,255,.4);
  font-size: .85rem;
  margin: 0;
}

.login-body {
  padding: 1rem 1.5rem 2rem;
}

.login-body .form-label {
  color: rgba(255,255,255,.5);
  font-size: .8rem;
}

.login-body .form-control {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  color: #fff;
  border-radius: var(--admin-radius);
  padding: .65rem .85rem;
}
.login-body .form-control::placeholder { color: rgba(255,255,255,.2); }
.login-body .form-control:focus {
  background: rgba(255,255,255,.08);
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px rgba(var(--admin-primary-rgb),.25);
  color: #fff;
}

.login-body .btn-primary {
  background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-primary-light) 100%);
  border: none;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(var(--admin-primary-rgb),.3);
  transition: all var(--admin-duration) var(--admin-ease);
}
.login-body .btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(var(--admin-primary-rgb),.4);
}

/* ═══ EMPTY STATE ═══ */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--admin-muted);
}
.empty-state i { font-size: 2.5rem; opacity: .25; display: block; margin-bottom: .75rem; }

/* ═══ ALERTS ═══ */
.alert {
  border-radius: var(--admin-radius-md);
  border: none;
  font-size: .875rem;
  padding: .85rem 1.15rem;
}
.alert-success { background: var(--admin-success-light); color: #065f46; border-left: 3px solid var(--admin-success); }
.alert-danger { background: var(--admin-danger-light); color: #991b1b; border-left: 3px solid var(--admin-danger); }

/* ═══ RESPONSIVE ═══ */
.admin-sidebar-toggle {
  display: none;
  position: fixed;
  top: .85rem;
  left: .85rem;
  z-index: 1100;
  background: var(--admin-sidebar-bg);
  color: #fff;
  border: none;
  border-radius: var(--admin-radius);
  width: 40px;
  height: 40px;
  font-size: 1.15rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  box-shadow: var(--admin-shadow);
  transition: all var(--admin-duration) var(--admin-ease);
}
.admin-sidebar-toggle:hover { background: #1e293b; transform: scale(1.05); }

.admin-sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  backdrop-filter: blur(4px);
  z-index: 999;
}

@media (max-width: 991.98px) {
  .admin-sidebar-toggle { display: flex; }
  .admin-sidebar {
    transform: translateX(-100%);
    width: 280px;
    box-shadow: var(--admin-shadow-lg);
  }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-sidebar.open ~ .admin-sidebar-overlay { display: block; }
  .admin-main {
    margin-left: 0;
    padding: 1.25rem;
    padding-top: 3.75rem;
  }
  .admin-table { font-size: .8rem; }
  .admin-table th, .admin-table td { padding: .45rem .55rem; }
  .stat-value { font-size: 1.4rem; }
}

@media (max-width: 575.98px) {
  .admin-main { padding: .75rem; padding-top: 3.75rem; }
  .page-header h1 { font-size: 1.2rem; }
  .stat-card { padding: 1rem; }
  .stat-value { font-size: 1.25rem; }
}