/* ============================================
   PERPUSTAKAAN UNNUR — Design System
   Modern, responsive, consistent UI
   ============================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- CSS Variables ---- */
:root {
  /* Primary Colors */
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --primary-light: #818cf8;
  --primary-bg: #eef2ff;

  /* Accent */
  --accent: #06b6d4;
  --accent-dark: #0891b2;

  /* Neutral */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Semantic */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);

  /* Radius */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transition */
  --transition: all 0.2s ease;
  --transition-slow: all 0.3s ease;

  /* Sidebar */
  --sidebar-width: 280px;
  --sidebar-collapsed: 0px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--gray-800);
  background-color: var(--gray-50);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  color: var(--primary-dark);
}

/* ============================================
   LANDING PAGE
   ============================================ */
.landing-page {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.landing-bg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

.landing-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.landing-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(15,23,42,0.75) 0%, rgba(79,70,229,0.6) 100%);
  z-index: 1;
}

.landing-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 40px 20px;
  max-width: 800px;
}

.landing-logo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255,255,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  animation: float 3s ease-in-out infinite;
}

.landing-logo img {
  width: 50px;
  height: 50px;
  filter: brightness(0) invert(1);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.landing-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.landing-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 48px;
  font-weight: 300;
}

.landing-cards {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.landing-card {
  width: 260px;
  padding: 36px 28px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: var(--transition-slow);
  cursor: pointer;
  text-decoration: none;
  color: #fff;
  display: block;
}

.landing-card:hover {
  transform: translateY(-8px);
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.4);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  color: #fff;
}

.landing-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.landing-card-icon img {
  width: 32px;
  height: 32px;
  filter: brightness(0) invert(1);
}

.landing-card-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.landing-card-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-top: 6px;
}

.landing-footer {
  position: absolute;
  bottom: 24px;
  z-index: 2;
  color: rgba(255,255,255,0.4);
  font-size: 0.8rem;
}

/* ============================================
   ADMIN LAYOUT
   ============================================ */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
  color: #fff;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  transition: var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 28px 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

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

.sidebar-brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-brand-icon img {
  width: 24px;
  height: 24px;
  filter: brightness(0) invert(1);
}

.sidebar-brand-text {
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  color: var(--gray-400);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  margin-bottom: 4px;
  text-decoration: none;
}

.sidebar-nav-item:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}

.sidebar-nav-item.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 12px rgba(79,70,229,0.4);
}

.sidebar-nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.sidebar-footer .sidebar-nav-item {
  color: var(--gray-500);
}

.sidebar-footer .sidebar-nav-item:hover {
  color: #ef4444;
  background: rgba(239,68,68,0.1);
}

/* ---- Main Content ---- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 32px;
  min-height: 100vh;
  transition: var(--transition-slow);
}

.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.main-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gray-900);
  margin: 0;
}

.main-title small {
  display: block;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--gray-500);
  margin-top: 4px;
}

/* ---- Mobile Toggle ---- */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 200;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--primary);
  border: none;
  color: #fff;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

.sidebar-toggle svg {
  width: 24px;
  height: 24px;
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

/* ============================================
   STAT CARDS
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

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

.stat-card-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-500);
  margin-bottom: 8px;
}

.stat-card-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat-card-desc {
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-top: 4px;
}

/* ============================================
   DATA TABLE CARD
   ============================================ */
.data-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}

.data-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-200);
}

.data-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-800);
  margin: 0;
}

.data-card-body {
  padding: 0;
}

.data-card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
}

/* ---- Search Bar ---- */
.search-bar {
  display: flex;
  gap: 8px;
  padding: 16px 24px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-100);
}

.search-bar .form-control {
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  padding: 8px 16px;
  font-size: 0.9rem;
  transition: var(--transition);
}

.search-bar .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}

/* ---- Modern Table ---- */
.modern-table {
  width: 100%;
  border-collapse: collapse;
}

.modern-table thead th {
  background: var(--gray-50);
  padding: 12px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-500);
  border-bottom: 2px solid var(--gray-200);
  text-align: left;
  white-space: nowrap;
}

.modern-table tbody td {
  padding: 14px 16px;
  font-size: 0.88rem;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
}

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

.modern-table tbody tr:hover {
  background: var(--gray-50);
}

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

/* ---- Action Buttons ---- */
.action-btns {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: nowrap;
}

.btn-action {
  padding: 6px 12px;
  font-size: 0.78rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  white-space: nowrap;
}

.btn-action-print {
  background: #ecfdf5;
  color: #059669;
}
.btn-action-print:hover {
  background: #d1fae5;
  color: #047857;
}

.btn-action-edit {
  background: #fef3c7;
  color: #d97706;
}
.btn-action-edit:hover {
  background: #fde68a;
  color: #b45309;
}

.btn-action-delete {
  background: #fef2f2;
  color: #dc2626;
}
.btn-action-delete:hover {
  background: #fee2e2;
  color: #b91c1c;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary-custom {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-primary-custom:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79,70,229,0.3);
}

.btn-secondary-custom {
  background: var(--gray-100);
  color: var(--gray-700);
  border: 1px solid var(--gray-200);
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-secondary-custom:hover {
  background: var(--gray-200);
  color: var(--gray-800);
}

.btn-success-custom {
  background: var(--success);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-success-custom:hover {
  background: #059669;
  transform: translateY(-1px);
}

/* ============================================
   FORM PAGES
   ============================================ */
.form-page {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--primary-bg) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.form-card {
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 48px;
  width: 100%;
  max-width: 720px;
  border: 1px solid var(--gray-200);
}

.form-card-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gray-900);
  text-align: center;
  margin-bottom: 4px;
}

.form-card-subtitle {
  font-size: 0.9rem;
  color: var(--gray-500);
  text-align: center;
  margin-bottom: 32px;
}

.form-card .form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-card .form-control,
.form-card .form-select {
  border-radius: var(--radius);
  border: 1.5px solid var(--gray-200);
  padding: 10px 14px;
  font-size: 0.9rem;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}

.form-card .form-control:focus,
.form-card .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 32px;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--primary-dark) 50%, var(--primary) 100%);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(79,70,229,0.15);
  filter: blur(80px);
}

.login-page::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(6,182,212,0.1);
  filter: blur(60px);
}

.login-card {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  text-align: center;
  position: relative;
  z-index: 1;
  border: 1px solid rgba(255,255,255,0.5);
}

.login-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 8px 24px rgba(79,70,229,0.3);
}

.login-icon svg {
  width: 36px;
  height: 36px;
  color: #fff;
}

.login-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.login-desc {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: 28px;
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination .page-link {
  border-radius: var(--radius-sm);
  margin: 0 2px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-600);
  border: 1px solid var(--gray-200);
  padding: 6px 12px;
  transition: var(--transition);
}

.pagination .page-link:hover {
  background: var(--primary-bg);
  color: var(--primary);
  border-color: var(--primary-light);
}

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

/* ============================================
   ALERTS & BADGES
   ============================================ */
.alert-custom {
  border-radius: var(--radius);
  border: none;
  font-size: 0.9rem;
  padding: 14px 20px;
}

.badge-status {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 991.98px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.show {
    transform: translateX(0);
  }

  .sidebar-toggle {
    display: flex;
  }

  .sidebar-backdrop.show {
    display: block;
  }

  .main-content {
    margin-left: 0;
    padding: 24px 16px;
    padding-top: 72px;
  }

  .main-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .landing-title {
    font-size: 1.8rem;
  }

  .landing-cards {
    flex-direction: column;
    align-items: center;
  }

  .landing-card {
    width: 100%;
    max-width: 300px;
  }

  .form-card {
    padding: 32px 24px;
  }

  .login-card {
    padding: 36px 28px;
    margin: 0 16px;
  }

  .data-card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .action-btns {
    flex-wrap: wrap;
  }
}

@media (max-width: 575.98px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .form-actions {
    flex-direction: column;
  }

  .form-actions > * {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .modern-table {
    font-size: 0.82rem;
  }

  .modern-table thead th,
  .modern-table tbody td {
    padding: 10px 8px;
  }
}