/* ==========================================================================
   ErgoLab Portal — Core Design System v2.0
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS VARIABLES (THEME SYSTEM)
   -------------------------------------------------------------------------- */
:root {
  /* Default: Light Mode */
  --bg-primary: #F0F4FF;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F8FAFC;
  --text-primary: #1E293B;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --accent-primary: #3B82F6;    /* Biru Muda */
  --accent-secondary: #1E3A8A;  /* Biru Tua */
  --accent-tertiary: #60A5FA;
  --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(59, 130, 246, 0.15);
  --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
  --glass-border-hover: rgba(59, 130, 246, 0.4);
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

[data-theme="dark"] {
  --bg-primary: #0B1120;        /* Navy gelap */
  --bg-secondary: #111827;
  --bg-tertiary: #1E293B;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --accent-primary: #60A5FA;    /* Biru Muda menyala */
  --accent-secondary: #3B82F6;
  --accent-tertiary: #93C5FD;
  --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --glass-bg: rgba(17, 24, 39, 0.8);
  --glass-border: rgba(96, 165, 250, 0.2);
  --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
  --glass-border-hover: rgba(96, 165, 250, 0.5);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: rgba(96, 165, 250, 0.3);
}

[data-theme="special"] {
  --bg-primary: #1E1033;        /* Deep purple */
  --bg-secondary: #2D1B4E;
  --bg-tertiary: #3B2865;
  --text-primary: #FDF4FF;
  --text-secondary: #E879F9;
  --text-muted: #D946EF;
  --accent-primary: #F59E0B;    /* Amber/Gold */
  --accent-secondary: #D97706;
  --accent-tertiary: #FCD34D;
  --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --glass-bg: rgba(45, 27, 78, 0.8);
  --glass-border: rgba(245, 158, 11, 0.2);
  --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
  --glass-border-hover: rgba(245, 158, 11, 0.5);
}

/* --------------------------------------------------------------------------
   2. BASE STYLES
   -------------------------------------------------------------------------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--glass-border-hover);
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   3. BACKGROUND MESH
   -------------------------------------------------------------------------- */
.bg-mesh {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background: radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08), transparent 25%),
              radial-gradient(circle at 85% 30%, rgba(96, 165, 250, 0.08), transparent 25%);
  pointer-events: none;
}

[data-theme="dark"] .bg-mesh {
  background: radial-gradient(circle at 15% 50%, rgba(96, 165, 250, 0.15), transparent 25%),
              radial-gradient(circle at 85% 30%, rgba(59, 130, 246, 0.15), transparent 25%);
}

[data-theme="special"] .bg-mesh {
  background: radial-gradient(circle at 15% 50%, rgba(245, 158, 11, 0.15), transparent 25%),
              radial-gradient(circle at 85% 30%, rgba(217, 119, 6, 0.15), transparent 25%);
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

p {
  color: var(--text-secondary);
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

/* --------------------------------------------------------------------------
   5. BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  font-family: inherit;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.btn:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.btn:active {
  transform: translateY(0) scale(0.97);
}

.btn-primary {
  background: var(--accent-gradient);
  color: white !important;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

[data-theme="special"] .btn-primary {
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
}

.btn-secondary {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary) !important;
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  background: var(--bg-secondary);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.1);
  color: #EF4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: #EF4444;
  color: white;
}

/* --------------------------------------------------------------------------
   6. FORMS
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0.2px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(5px);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15), 0 0 20px rgba(59, 130, 246, 0.1);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23475569'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 36px;
}

/* --------------------------------------------------------------------------
   7. GLASS COMPONENTS
   -------------------------------------------------------------------------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  transition: all 0.3s ease;
  position: relative;
}

.glass:hover:not(.tilt-card):not(.filter-bar) {
  border-color: var(--glass-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15), 0 0 20px rgba(59, 130, 246, 0.1);
}

.glass::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,0.4), rgba(255,255,255,0));
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.glass:hover::after {
  opacity: 1;
}

.glass-static {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

/* --------------------------------------------------------------------------
   8. NAVBAR
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: all 0.3s ease;
  background: transparent;
}

.navbar.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.navbar-logo span {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.navbar-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--accent-primary);
}

.navbar-cart {
  position: relative;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  transition: transform 0.2s;
}
.navbar-cart:hover {
  transform: scale(1.1);
  color: var(--accent-primary);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   9. HERO
   -------------------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  padding-top: 100px;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse 2s infinite;
}

.hero-content h1 {
  font-size: 3.5rem;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.hero-3d {
  width: 100%;
  height: 100%;
  min-height: 500px;
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: transparent;
}

/* --------------------------------------------------------------------------
   10. SECTIONS & LAYOUTS
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  color: var(--accent-primary);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
  display: block;
}

.section-header h2 {
  font-size: 2.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

/* --------------------------------------------------------------------------
   11. ITEM CARDS & 3D TILT
   -------------------------------------------------------------------------- */
.tilt-card {
  transform-style: preserve-3d;
  transform: perspective(1000px);
}

.item-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
  transform: translateZ(30px);
}

.item-code {
  background: var(--accent-primary);
  color: white;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
}

.item-stock {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--success);
  display: flex;
  align-items: center;
  gap: 6px;
}

.item-stock.low {
  color: var(--warning);
}

.item-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  transform: translateZ(40px);
}

.item-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
  flex: 1;
  transform: translateZ(20px);
}

.item-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  transform: translateZ(30px);
}

.qty-control {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.qty-control button {
  background: none;
  border: none;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background 0.2s;
}

.qty-control button:hover {
  background: var(--glass-border);
  color: var(--text-primary);
}

.qty-control span {
  width: 32px;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   12. FEEDBACK CAROUSEL
   -------------------------------------------------------------------------- */
.carousel-container {
  position: relative;
  overflow: hidden;
  padding: 20px 40px;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s ease-in-out;
  gap: 24px;
}

.carousel-card {
  min-width: calc(33.333% - 16px);
  padding: 24px;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glass-shadow);
  transition: all 0.2s;
}

.carousel-btn:hover {
  background: var(--bg-secondary);
  color: var(--accent-primary);
}

.carousel-btn.left { left: 0; }
.carousel-btn.right { right: 0; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.carousel-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--glass-border);
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.carousel-dots button.active {
  background: var(--accent-primary);
  transform: scale(1.3);
}

/* --------------------------------------------------------------------------
   13. VERIFICATION
   -------------------------------------------------------------------------- */
.verify-box {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px;
}

.verify-input-group {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.verify-result {
  text-align: left;
  border-top: 1px solid var(--glass-border);
  padding-top: 24px;
  margin-top: 24px;
}

.practicum-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.practicum-badge {
  padding: 16px;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--glass-border);
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.practicum-badge .icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.practicum-badge.sudah .icon {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.practicum-badge.belum .icon {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

/* --------------------------------------------------------------------------
   14. CART SIDEBAR
   -------------------------------------------------------------------------- */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.cart-overlay.open {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  bottom: 0;
  width: 100%;
  max-width: 400px;
  background: var(--bg-primary);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -5px 0 30px rgba(0,0,0,0.1);
}

.cart-overlay.open .cart-sidebar {
  right: 0;
}

.cart-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.cart-footer {
  padding: 24px;
  border-top: 1px solid var(--glass-border);
  background: var(--bg-secondary);
}

.cart-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
}

.cart-empty {
  text-align: center;
  color: var(--text-muted);
  margin-top: 40px;
}

.badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--danger);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   15. MODAL & FILE UPLOAD
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-primary);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.modal-close {
  background: none;
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  font-size: 0.9rem;
}
.modal-close:hover {
  background: rgba(239,68,68,0.1);
  border-color: rgba(239,68,68,0.3);
  color: var(--danger);
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  max-height: calc(90vh - 130px);
  max-height: calc(90dvh - 130px);
}

.modal-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.sop-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 16px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--warning);
  font-size: 0.9rem;
}

.file-upload-area {
  border: 2px dashed var(--glass-border-hover);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg-secondary);
}

.file-upload-area:hover,
.file-upload-area.dragover {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
}

.file-upload-area i {
  font-size: 2rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.file-info {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--success);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   16. FOOTER
   -------------------------------------------------------------------------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--glass-border);
  padding: 80px 0 40px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.contact-item i {
  color: var(--accent-primary);
  margin-top: 4px;
}

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   17. COMPONENTS (Toast, Badge, Pagination, Filter)
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  animation: slideInRight 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-badge.approved { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.status-badge.pending { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.status-badge.rejected { background: rgba(239, 68, 68, 0.1); color: var(--danger); }

.filter-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.search-box {
  flex: 1;
  position: relative;
}

.search-box i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.search-box input {
  padding-left: 40px;
}

/* Pagination — single canonical definition */
.pagination{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:2rem}
.pagination button{padding:6px 12px;border-radius:8px;border:1px solid var(--glass-border);background:rgba(255,255,255,.03);color:var(--text-secondary);cursor:pointer;font-size:.8rem;font-family:'Inter',sans-serif;transition:all .2s}
.pagination button:hover:not(:disabled){background:rgba(255,255,255,.08);color:var(--text-primary)}
.pagination button.active{background:rgba(99,102,241,.15);color:var(--accent-primary);border-color:rgba(99,102,241,.3)}
.pagination button:disabled{opacity:.3;cursor:not-allowed}

/* Spline watermark cover */
.spline-cover {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 140px;
  height: 42px;
  z-index: 50;
  pointer-events: none;
}

/* Tabbed navigation for admin settings */
.tabs-nav{display:flex;gap:2px;border-bottom:2px solid var(--glass-border);margin-bottom:2rem;overflow-x:auto}
.tab-btn{padding:12px 20px;background:none;border:none;color:var(--text-muted);font-weight:600;font-size:.9rem;cursor:pointer;position:relative;transition:all .2s;white-space:nowrap;font-family:inherit;border-bottom:2px solid transparent;margin-bottom:-2px}
.tab-btn:hover{color:var(--text-primary)}
.tab-btn.active{color:var(--accent-primary);border-bottom-color:var(--accent-primary)}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* Print receipt styles */
@media print {
  .no-print{display:none!important}
  body{background:#fff!important;color:#000!important;font-size:12pt}
  .print-receipt{padding:20mm;max-width:210mm;margin:0 auto}
  .print-receipt table{border-collapse:collapse;width:100%}
  .print-receipt th,.print-receipt td{border:1px solid #333;padding:8px 12px;text-align:left}
  .print-receipt th{background:#f0f0f0!important;font-weight:700}
  .signature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px;margin-top:60px;text-align:center}
  .signature-box{border-top:1px solid #000;padding-top:8px;margin-top:80px}
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(59, 130, 246, 0.2);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: inline-block;
}

/* --------------------------------------------------------------------------
   18. ANIMATIONS
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

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

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Micro-interaction animations */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes scaleIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes slideInUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideInLeft {
  from { transform: translateX(-30px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Staggered animation helper */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* Skeleton loading effect */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--glass-bg) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* Floating animation for hero elements */
.animate-float {
  animation: float 6s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   19. ADMIN SPECIFIC
   -------------------------------------------------------------------------- */
/* Handled mainly in includes/sidebar.php, but ensuring variables map correctly */

/* --------------------------------------------------------------------------
   20. RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-3d {
    height: 400px;
    min-height: 400px;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar-links {
    display: none; /* Hide on mobile by default */
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .navbar-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    padding: 20px;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
  }

  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }

  .practicum-badges {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .carousel-card {
    min-width: calc(100% - 32px) !important;
    max-width: calc(100% - 32px) !important;
  }

  .filter-bar {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .section {
    padding: 60px 0;
  }
}

/* --------------------------------------------------------------------------
   NEW ADDITIONS
   -------------------------------------------------------------------------- */
/* Center-focus carousel */
.carousel-container {
  overflow: hidden;
  position: relative;
  padding: 20px 0;
}

.carousel-track {
  display: flex;
  gap: 16px;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-card {
  transition: transform 0.4s ease, opacity 0.4s ease, box-shadow 0.4s ease;
  transform-origin: center center;
}

.carousel-card.center-focus {
  transform: scale(1.08);
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  z-index: 2;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.carousel-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: var(--glass-border);
  cursor: pointer;
  padding: 0;
  transition: all 0.3s;
}

.carousel-dots button.active {
  background: var(--accent-primary);
  width: 28px;
  border-radius: 5px;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  transition: all 0.3s;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.carousel-btn:hover {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.carousel-btn.left { left: -8px; }
.carousel-btn.right { right: -8px; }

/* Loan status cards */
.loan-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.loan-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

/* In the admin section or after section 17 */
.admin-table tbody tr:nth-child(even) {
  background: rgba(255,255,255,0.015);
}

/* --------------------------------------------------------------------------
   21. iOS / APPLE WEBKIT SAFETY (Phase 6)
   -------------------------------------------------------------------------- */

/* Use dvh (dynamic viewport height) with fallback for Safari < 15.4 */
.hero,
.min-h-screen-safe {
  min-height: 100vh; /* fallback */
  min-height: 100dvh;
}

/* Webkit backdrop-filter fallback */
.glass,
.glass-static,
.navbar.scrolled,
.cart-sidebar,
.modal-overlay,
.form-control {
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

/* Prevent iOS text size inflation */
body {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

/* Safe touch handling — prevent accidental zoom on double-tap */
button, a, input, select, textarea {
  touch-action: manipulation;
}

/* iOS safe area insets for notch/dynamic island devices */
.navbar-inner {
  padding-left: max(24px, env(safe-area-inset-left));
  padding-right: max(24px, env(safe-area-inset-right));
}

.footer-inner {
  padding-bottom: max(24px, env(safe-area-inset-bottom));
}

/* Reduce Spline 3D weight on iOS via forced containment */
.hero-3d {
  contain: layout style paint;
  will-change: auto;
}

/* Force GPU compositing on animated elements for smoother iOS rendering */
.carousel-track,
.cart-sidebar,
.modal {
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

/* Prevent iOS overscroll bounce on modals/sidebars */
.cart-body,
.modal-body {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

/* Reduce animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .bg-mesh { display: none; }
  .hero-3d { display: none; }
}

/* iOS color input fix — make picker more tappable */
input[type="color"] {
  -webkit-appearance: none;
  appearance: none;
  padding: 0;
  border: 2px solid var(--glass-border);
}
input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 2px;
}
input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 4px;
}