/* ==========================================================================
   Pengelolaan Keuangan Kelas (Korlas) - Custom CSS
   Modern Glassmorphism & Mobile-First Aesthetic
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* HSL Modern Palette */
  --bg-primary: #0f172a;
  --bg-surface: #1e293b;
  --bg-light: #f8fafc;
  --card-bg: rgba(255, 255, 255, 0.95);
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;

  --success: #059669;
  --success-light: #ecfdf5;
  --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);

  --danger: #dc2626;
  --danger-light: #fef2f2;
  --danger-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);

  --warning: #d97706;
  --warning-light: #fffbeb;

  --info: #0284c7;
  --info-light: #f0f9ff;
  --info-gradient: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);

  --neutral-900: #0f172a;
  --neutral-700: #334155;
  --neutral-500: #64748b;
  --neutral-300: #cbd5e1;
  --neutral-100: #f1f5f9;

  --glass-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
  --glass-border: 1px solid rgba(226, 232, 240, 0.8);
  --border-radius: 16px;
}

body {
  font-family: var(--font-body);
  background-color: #f1f5f9;
  color: var(--neutral-900);
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Header & Navbar */
.app-navbar {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 10px 30px -10px rgba(49, 46, 129, 0.4);
}

.brand-badge {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 0.35rem 0.85rem;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* KPI Stat Cards */
.stat-card {
  background: white;
  border-radius: var(--border-radius);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 30px -10px rgba(0, 0, 0, 0.1);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
}

.stat-card.stat-income::before { background: var(--success-gradient); }
.stat-card.stat-expense::before { background: var(--danger-gradient); }
.stat-card.stat-balance::before { background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%); }

.stat-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.icon-income { background: var(--success-light); color: var(--success); }
.icon-expense { background: var(--danger-light); color: var(--danger); }
.icon-balance { background: var(--primary-light); color: var(--primary); }

.stat-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  color: var(--neutral-500);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  margin-top: 0.25rem;
  color: var(--neutral-900);
}

/* Custom Passcode Modal & Overlay */
.passcode-container {
  max-width: 440px;
  margin: 4rem auto;
  background: white;
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(226, 232, 240, 0.9);
  text-align: center;
}

.passcode-input {
  letter-spacing: 0.6em;
  font-size: 1.8rem;
  font-family: var(--font-heading);
  text-align: center;
  font-weight: 700;
  border-radius: 14px;
  border: 2px solid var(--neutral-300);
  padding: 0.75rem;
  transition: all 0.2s ease;
}

.passcode-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
  outline: none;
}

/* Tab Navigation Modern */
.nav-pills-modern {
  background: #e2e8f0;
  padding: 6px;
  border-radius: 16px;
  display: inline-flex;
  gap: 4px;
  width: 100%;
  overflow-x: auto;
}

.nav-pills-modern .nav-link {
  color: var(--neutral-700);
  font-weight: 600;
  border-radius: 12px;
  padding: 0.65rem 1.25rem;
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-pills-modern .nav-link.active {
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Matrix Table Styling (Iuran Siswa) */
.table-matrix-container {
  overflow-x: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--glass-shadow);
  border: var(--glass-border);
  background: white;
}

.table-matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.table-matrix th {
  background: #f8fafc;
  color: var(--neutral-700);
  font-weight: 700;
  padding: 1rem 0.75rem;
  text-align: center;
  border-bottom: 2px solid var(--neutral-300);
  white-space: nowrap;
}

.table-matrix td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--neutral-100);
  vertical-align: middle;
  text-align: center;
}

.table-matrix td.student-name {
  text-align: left;
  font-weight: 600;
  color: var(--neutral-900);
  position: sticky;
  left: 0;
  background: white;
  z-index: 2;
  box-shadow: 2px 0 5px rgba(0,0,0,0.02);
}

.badge-paid {
  background: var(--success-light);
  color: var(--success);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  display: inline-block;
  border: 1px solid rgba(5, 150, 105, 0.2);
}

.badge-unpaid {
  background: var(--danger-light);
  color: var(--danger);
  font-weight: 600;
  font-size: 0.75rem;
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  display: inline-block;
  border: 1px solid rgba(220, 38, 38, 0.2);
}

/* Proof Photo Gallery Card */
.gallery-card {
  background: white;
  border-radius: 14px;
  overflow: hidden;
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: transform 0.2s ease;
}

.gallery-card:hover {
  transform: translateY(-3px);
}

.gallery-img-wrap {
  position: relative;
  height: 125px; /* Compact thumbnail height */
  overflow: hidden;
  background: #0f172a;
}

.gallery-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-card:hover .gallery-img-wrap img {
  transform: scale(1.06);
}

.gallery-type-tag {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 20px;
  backdrop-filter: blur(8px);
}

/* Event Folder Card Header & Interactive Folder */
.folder-card {
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.folder-card:hover {
  transform: translateY(-5px);
  border-color: #f59e0b !important;
  box-shadow: 0 12px 30px rgba(245, 158, 11, 0.15) !important;
}

.folder-card:hover .folder-cover-img {
  transform: scale(1.08);
}

.folder-header {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 0.9rem 1.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.folder-header:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

.folder-header .folder-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.tag-receipt { background: rgba(220, 38, 38, 0.85); color: white; }
.tag-event { background: rgba(14, 165, 233, 0.85); color: white; }

/* Lightbox Modal */
.lightbox-modal .modal-content {
  background: transparent;
  border: none;
}
.lightbox-modal img {
  max-height: 80vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}

/* Printable PDF Styling */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  .no-print, .app-navbar, .nav-pills-modern, .btn, footer, .passcode-container {
    display: none !important;
  }
  .printable-area {
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    box-shadow: none !important;
    border: none !important;
  }
  .print-header {
    display: block !important;
    text-align: center;
    border-bottom: 2px solid #000;
    padding-bottom: 15px;
    margin-bottom: 20px;
  }
  table {
    width: 100% !important;
    border-collapse: collapse !important;
  }
  th, td {
    border: 1px solid #94a3b8 !important;
    padding: 6px 10px !important;
    font-size: 11pt !important;
  }
}