/* ==========================================================================
   ATTENDANCE MANAGER — STYLESHEET
   Paleta Operacional: Esmeralda / Teal (#0d9488, #0f766e)
   ========================================================================== */

:root {
  --primary: #0d9488;
  --primary-hover: #0f766e;
  --primary-dark: #115e59;
  --primary-light: #ccfbf1;
  --primary-subtle: #f0fdfa;

  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-muted: #f1f5f9;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --border-color: #e2e8f0;
  --border-focus: #14b8a6;

  --success: #10b981;
  --success-bg: #ecfdf5;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --danger: #ef4444;
  --danger-bg: #fef2f2;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   PANTALLA DE ACCESO (GOOGLE SIGN-IN)
   ========================================================================== */
.access-card {
  max-width: 480px;
  margin: 80px auto;
  padding: 40px;
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  text-align: center;
}

.access-icon-wrapper {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 50%;
}

.access-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.access-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.access-instructions {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  text-align: center;
}

.google-btn-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 24px 0;
  min-height: 48px;
}

.access-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--primary-dark);
  font-weight: 500;
  font-size: 0.9rem;
}

.access-footer {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.security-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   APP SHELL & NAVBAR
   ========================================================================== */
.navbar {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.navbar-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  color: var(--primary);
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.tenant-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  background-color: var(--primary-light);
  color: var(--primary-dark);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
}

.navbar-nav {
  display: flex;
  gap: 8px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.95rem;
  transition: background-color 0.15s, color 0.15s;
}

.nav-link:hover {
  background-color: var(--bg-muted);
  color: var(--text-main);
}

.nav-link.active {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 16px;
}

.user-details {
  text-align: right;
}

.user-email {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

.role-tag {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   MAIN CONTENT & PAGE LAYOUT
   ========================================================================== */
.main-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

.page-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.breadcrumb {
  margin-bottom: 8px;
}

.breadcrumb a {
  text-decoration: none;
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   CARDS & GRIDS
   ========================================================================== */
.card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 24px;
}

.card-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  transition: transform 0.15s, box-shadow 0.15s;
}

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

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

.stat-header h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.stat-icon {
  font-size: 1.4rem;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}

.info-value {
  font-size: 0.95rem;
  color: var(--text-main);
  font-weight: 500;
}

.code-font {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background-color: var(--bg-muted);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  width: fit-content;
}

/* ==========================================================================
   TABLES
   ========================================================================== */
.table-responsive {
  overflow-x: auto;
}

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

.data-table th {
  background-color: var(--bg-muted);
  color: var(--text-muted);
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

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

.actions-cell {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s, border-color 0.15s, box-shadow 0.15s;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

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

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

.btn-outline:hover {
  background-color: var(--bg-muted);
  border-color: var(--text-muted);
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 0.8rem;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-active, .badge-authorized, .badge-success {
  background-color: var(--success-bg);
  color: var(--success);
}

.badge-inactive, .badge-unauthorized, .badge-danger {
  background-color: var(--danger-bg);
  color: var(--danger);
}

/* ==========================================================================
   FORMS & INPUTS
   ========================================================================== */
.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-main);
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.2);
}

.form-help {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ==========================================================================
   ALERTS & SPINNER
   ========================================================================== */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 20px;
  text-align: left;
}

.alert-error {
  background-color: var(--danger-bg);
  color: #b91c1c;
  border: 1px solid #fca5a5;
}

.alert-success {
  background-color: var(--success-bg);
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--primary-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   MODALS
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-dialog {
  background-color: var(--bg-card);
  width: 100%;
  max-width: 500px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  margin: 16px;
  overflow: hidden;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 4px;
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background-color: var(--bg-muted);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .navbar-container {
    flex-direction: column;
    height: auto;
    padding: 12px 16px;
    gap: 12px;
  }
  .navbar-nav {
    width: 100%;
    justify-content: center;
  }
  .page-header {
    flex-direction: column;
    gap: 16px;
  }
}