/* ============================================
   License Manager — Panel SaaS
   Tema oscuro por defecto, acentos azul/verde
   ============================================ */

:root {
  /* Dark theme (default) */
  --bg-body: #0a0a0b;
  --bg-sidebar: #111113;
  --bg-card: #161618;
  --bg-input: #1c1c1f;
  --border: #27272a;
  --border-hover: #3f3f46;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --text-dim: #71717a;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-soft: rgba(59, 130, 246, 0.15);
  --accent-green: #22c55e;
  --accent-green-soft: rgba(34, 197, 94, 0.15);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.15);
  --warning: #eab308;
  --warning-soft: rgba(234, 179, 8, 0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  --transition: 0.2s ease;
}

[data-theme="light"] {
  --bg-body: #fafafa;
  --bg-sidebar: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #f4f4f5;
  --border: #e4e4e7;
  --border-hover: #d4d4d8;
  --text: #18181b;
  --text-muted: #52525b;
  --text-dim: #71717a;
  --accent-soft: rgba(59, 130, 246, 0.12);
  --accent-green-soft: rgba(34, 197, 94, 0.12);
  --danger-soft: rgba(239, 68, 68, 0.12);
  --warning-soft: rgba(234, 179, 8, 0.12);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-body);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

.app {
  display: flex;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.sidebar-header {
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0.75rem;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  margin-bottom: 2px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

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

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

.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 1rem 0.75rem;
  border-top: 1px solid var(--border);
}

.btn-logout {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.6rem 1rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  box-sizing: border-box;
}

.btn-logout:hover {
  background: var(--danger-soft);
  color: var(--danger);
}

/* ---------- Main wrap ---------- */
.main-wrap {
  flex: 1;
  margin-left: 260px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg-body);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.sidebar-toggle:hover {
  background: var(--border-hover);
}

.sidebar-toggle svg {
  width: 20px;
  height: 20px;
}

.page-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  transition: background var(--transition), transform 0.15s ease;
}

.theme-toggle button:hover {
  background: var(--border-hover);
}

.theme-toggle button:active {
  transform: scale(0.96);
}

.theme-toggle .icon-light { display: none; }
.theme-toggle .icon-dark { display: block; }
.theme-toggle svg { width: 20px; height: 20px; }

[data-theme="light"] .theme-toggle .icon-light { display: block; }
[data-theme="light"] .theme-toggle .icon-dark { display: none; }

.badge-admin {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 6px;
}

.server-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 0 2px var(--accent-green-soft);
  animation: pulse-dot 2s ease-in-out infinite;
}

.server-status.offline .status-dot {
  background: var(--danger);
  box-shadow: 0 0 0 2px var(--danger-soft);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ---------- Content ---------- */
.content {
  flex: 1;
  padding: 1.5rem;
}

.panel-section {
  display: none;
  animation: fadeIn 0.3s ease;
}

.panel-section.is-visible {
  display: block;
}

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

/* ---------- Stats grid (Dashboard) ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.stat-value.stat-accent {
  color: var(--accent);
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
}

.card-title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.chart-card .card-title {
  margin-bottom: 1.25rem;
}

.chart-wrap {
  height: 220px;
  position: relative;
}

/* ---------- Form ---------- */
.form-create {
  max-width: 420px;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.65rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-group input::placeholder {
  color: var(--text-dim);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform 0.15s ease, border-color var(--transition);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-lg {
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  margin-top: 0.5rem;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  background: var(--bg-input);
  color: var(--text);
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

.btn-copy {
  margin-top: 0.5rem;
}

/* ---------- License result ---------- */
.license-result {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  animation: fadeIn 0.3s ease;
}

.license-result[hidden] {
  display: none !important;
}

.license-result-label {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.license-result-key {
  margin: 0;
  font-family: ui-monospace, monospace;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  word-break: break-all;
}

/* ---------- Table ---------- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th,
.data-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: var(--bg-input);
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr {
  transition: background var(--transition);
}

.data-table tbody tr:hover {
  background: var(--bg-input);
}

.license-key-cell {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  padding: 0.25rem 0.5rem;
  background: var(--bg-input);
  border-radius: 4px;
}

.empty-state {
  color: var(--text-dim);
  text-align: center;
  padding: 2rem !important;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-active {
  background: var(--accent-green-soft);
  color: var(--accent-green);
}

.badge-expired {
  background: var(--danger-soft);
  color: var(--danger);
}

.badge-suspended {
  background: var(--warning-soft);
  color: var(--warning);
}

/* ---------- Utilities ---------- */
.text-muted {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ---------- Overlay (mobile) ---------- */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 90;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.sidebar-overlay.is-visible {
  display: block;
  opacity: 1;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.is-open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
  }

  .main-wrap {
    margin-left: 0;
  }

  .sidebar-toggle {
    display: flex;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .content {
    padding: 1rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    padding: 0.75rem 1rem;
  }

  .page-title {
    font-size: 1.1rem;
  }

  .badge-admin {
    display: none;
  }

  .data-table th,
  .data-table td {
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
  }
}

/* ---------- Login page ---------- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
}

.login-wrap {
  width: 100%;
  max-width: 400px;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.login-logo {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
}

.login-subtitle {
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
}

.login-error {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background: var(--danger-soft);
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 0.875rem;
  text-align: center;
}

.login-form .form-group {
  margin-bottom: 1.1rem;
}

.btn-block {
  width: 100%;
  margin-top: 0.25rem;
}

.login-footer {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
}