@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');

:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #EFF6FF;
  --bg: #F1F5F9;
  --surface: #FFFFFF;
  --border: #E2E8F0;
  --text: #1E293B;
  --text-muted: #64748B;
  --success: #16A34A;
  --success-bg: #F0FDF4;
  --danger: #DC2626;
  --danger-bg: #FEF2F2;
  --warning: #D97706;
  --warning-bg: #FFFBEB;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
}

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

html {
  font-size: 16px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

/* APP HEADER */
.app-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: 56px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 0 16px;
}

.app-title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
}

.app-title:hover {
  text-decoration: none;
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: 6px;
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--primary-light);
  text-decoration: none;
}

.nav-links a.active {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-links .nav-logout {
  color: var(--danger);
}

.nav-links .nav-logout:hover {
  color: var(--danger);
  background: var(--danger-bg);
}

/* CONTAINER */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
}

/* PAGE HEADER */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
}

/* CARD */
.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}

/* TABLE */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 10px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  vertical-align: middle;
}

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

tr:hover td {
  background: #F8FAFC;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  font-family: 'DM Sans', sans-serif;
  line-height: 1.4;
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
}

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

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

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

.btn-secondary:hover {
  border-color: #CBD5E1;
  background: #E8EEF6;
}

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #FECACA;
}

.btn-danger:hover {
  background: #FEE2E2;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 0.8rem;
  border-radius: 6px;
}

/* FORMS */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text);
}

.form-label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: 'DM Sans', sans-serif;
  color: var(--text);
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
  color: #94A3B8;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ALERTS */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.alert-success {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid #BBF7D0;
}

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

.alert-warning {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid #FDE68A;
}

/* FILTERS CARD */
.filters-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  overflow: hidden;
}

.filters-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  padding: 14px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
}

.filters-toggle:hover {
  background: #F8FAFC;
}

.filters-body {
  padding: 0 20px 20px;
  border-top: 1px solid var(--border);
}

.filters-body .form-row {
  margin-top: 16px;
}

.filters-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

/* FAB */
.fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  z-index: 100;
  box-shadow: var(--shadow-md);
  font-size: 1.5rem;
  font-weight: 300;
  transition: background 0.15s, transform 0.15s;
}

.fab:hover {
  background: var(--primary-dark);
  color: #fff;
  text-decoration: none;
  transform: scale(1.05);
}

/* BADGE */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
}

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

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

/* PAGINATION */
.pagination {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-top: 20px;
  flex-wrap: wrap;
}

.page-link {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--text);
  background: #fff;
  transition: background 0.15s, border-color 0.15s;
  cursor: pointer;
}

.page-link:hover {
  background: var(--bg);
  text-decoration: none;
}

.page-link.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.page-link.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.pagination-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: 8px;
}

/* EMPTY STATE */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.4;
}

.empty-state h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.empty-state p {
  font-size: 0.9rem;
}

/* DETAIL GRID */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.detail-item {
  padding: 0;
}

.detail-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.detail-value {
  font-size: 0.95rem;
  color: var(--text);
}

/* ACTION BAR */
.action-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

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

.stat-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: box-shadow 0.15s, transform 0.15s;
  border: 1px solid transparent;
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  border-color: var(--primary-light);
  text-decoration: none;
  color: var(--text);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* SECTION TITLE */
.section-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

/* LOGIN */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 16px;
}

.login-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 380px;
  padding: 32px;
}

.login-logo {
  text-align: center;
  margin-bottom: 24px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}

.login-logo span {
  color: var(--primary);
}

/* TABLE ACTION BUTTONS */
.td-actions {
  white-space: nowrap;
  display: flex;
  gap: 4px;
  align-items: center;
}

/* WARNING BOX */
.warning-box {
  background: var(--warning-bg);
  border: 1px solid #FDE68A;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--warning);
  margin-bottom: 16px;
}

/* BACK LINK */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.back-link:hover {
  color: var(--primary);
}

/* ========== MEDIA QUERIES ========== */

@media (max-width: 768px) {
  .fab {
    display: flex;
  }

  .btn-new-desktop {
    display: none;
  }

  .filters-body {
    display: none;
  }

  .filters-body.open {
    display: block;
  }

  .hide-mobile {
    display: none;
  }

  .nav-links a {
    font-size: 0.8rem;
    padding: 4px 6px;
  }

  .page-title {
    font-size: 1.2rem;
  }

  .container {
    padding: 12px;
  }

  .card {
    padding: 16px;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .stat-card {
    padding: 14px 12px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

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

  .action-bar {
    gap: 6px;
  }

  .login-card {
    padding: 24px 20px;
  }
}

@media (min-width: 769px) {
  .filters-body {
    display: block !important;
  }

  .fab {
    display: none;
  }

  .filters-toggle .toggle-icon {
    display: none;
  }
}