/* ==========================================================================
   Palestine Ahliya University - Graduation Site
   Modern Design System
   Brand colors: Maroon #670e0a | Deep Maroon #8b1410 | Gold #c09e5f
   ========================================================================== */

:root {
  --pau-maroon: #670e0a;
  --pau-maroon-dark: #4a0a07;
  --pau-maroon-light: #8b1410;
  --pau-gold: #c09e5f;
  --pau-gold-light: #d4af6a;
  --pau-gold-soft: #f0d9a8;
  --pau-bg-soft: #f8fafc;
  --pau-bg-grey: #edf2f7;
  --pau-text-dark: #2d3748;
  --pau-text-muted: #718096;
  --pau-border: #e2e8f0;
  --pau-shadow-sm: 0 3px 12px rgba(0, 0, 0, 0.06);
  --pau-shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
  --pau-shadow-lg: 0 10px 32px rgba(103, 14, 10, 0.18);
}

/* ==========================================================================
   Base Reset
   ========================================================================== */
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body.pau-grad {
  font-family: 'Almarai', 'Noto Kufi Arabic', 'Rubik', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
  background: linear-gradient(135deg, var(--pau-bg-grey) 0%, #e2e8f0 100%);
  color: var(--pau-text-dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}

body.pau-grad a {
  /* color: var(--pau-maroon); */
  text-decoration: none;
  transition: all 0.25s ease;
}

body.pau-grad a:hover {
  color: var(--pau-maroon-light);
}

body.pau-grad h1, body.pau-grad h2, body.pau-grad h3,
body.pau-grad h4, body.pau-grad h5, body.pau-grad h6 {
  margin: 0 0 0.5rem 0;
  font-weight: 800;
  color: var(--pau-maroon);
  line-height: 1.3;
}

body.pau-grad img {
  max-width: 100%;
  height: auto;
}

/* ==========================================================================
   Navbar (top)
   ========================================================================== */
.pau-navbar {
  background: linear-gradient(135deg, var(--pau-maroon) 0%, var(--pau-maroon-light) 100%);
  padding: 0.75rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.pau-navbar::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--pau-gold) 0%,
    var(--pau-gold-light) 25%,
    var(--pau-gold-soft) 50%,
    var(--pau-gold-light) 75%,
    var(--pau-gold) 100%
  );
}

.pau-nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.pau-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
}

.pau-brand-logo {
  width: 60px;
  height: 60px;
  background: white;
  border-radius: 16px;
  border: 3px solid var(--pau-gold);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  flex-shrink: 0;
}

.pau-brand-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.pau-brand-text {
  color: white;
}

.pau-brand-text h1 {
  font-size: 1.15rem;
  font-weight: 900;
  color: white !important;
  margin: 0 0 0.15rem 0;
  line-height: 1.2;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

.pau-brand-text span {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  display: block;
}

.pau-nav-menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.pau-nav-menu li a {
  display: inline-block;
  color: white;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.25s ease;
  white-space: nowrap;
  cursor: pointer;
}

.pau-nav-menu li a:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--pau-gold-soft);
}

.pau-nav-menu li a.active {
  background: var(--pau-gold);
  color: var(--pau-maroon);
}

.pau-nav-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: white;
  font-size: 1.4rem;
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.pau-nav-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ==========================================================================
   Page Sections / Main
   ========================================================================== */
.pau-main {
  flex: 1;
  padding: 0;
  width: 100%;
}

.pau-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.pau-section {
  padding: 3rem 0;
}

/* Hero (home page) */
.pau-hero {
  position: relative;
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  overflow: hidden;
  background: linear-gradient(135deg, var(--pau-maroon-dark) 0%, var(--pau-maroon) 50%, var(--pau-maroon-light) 100%);
}

.pau-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(192, 158, 95, 0.2) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(192, 158, 95, 0.15) 0%, transparent 40%);
  pointer-events: none;
}

.pau-hero-inner {
  position: relative;
  max-width: 1100px;
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  text-align: center;
  color: white;
}

.pau-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--pau-gold);
  color: var(--pau-maroon);
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 14px rgba(192, 158, 95, 0.4);
}

.pau-hero-title {
  font-size: 2.6rem;
  font-weight: 900;
  color: white !important;
  margin: 0 0 0.75rem 0;
  text-shadow: 0 3px 12px rgba(0, 0, 0, 0.4);
  line-height: 1.2;
}

.pau-hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.95);
  margin: 0 0 1.5rem 0;
  font-weight: 500;
}

.pau-hero-image {
  margin-top: 1.5rem;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  border: 3px solid var(--pau-gold);
  max-width: 900px;
  margin-inline: auto;
}

.pau-hero-image img {
  display: block;
  width: 100%;
  height: auto;
}

.pau-hero-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

/* Buttons */
.pau-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 2px solid transparent;
  font-family: inherit;
}

.pau-btn-primary {
  background: var(--pau-gold);
  color: var(--pau-maroon);
  box-shadow: 0 6px 18px rgba(192, 158, 95, 0.45);
}

.pau-btn-primary:hover {
  background: var(--pau-gold-light);
  color: var(--pau-maroon);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(192, 158, 95, 0.55);
}

.pau-btn-outline {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.6);
}

.pau-btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  color: white;
  border-color: white;
}

/* Inner page header */
.pau-page-header {
  background: linear-gradient(135deg, var(--pau-maroon) 0%, var(--pau-maroon-light) 100%);
  padding: 3.5rem 1.5rem 3rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pau-page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 10% 50%, rgba(192, 158, 95, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 90% 50%, rgba(192, 158, 95, 0.12) 0%, transparent 40%);
  pointer-events: none;
}

.pau-page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--pau-gold) 0%,
    var(--pau-gold-light) 50%,
    var(--pau-gold) 100%
  );
}

.pau-page-header h1 {
  color: white !important;
  font-size: 2.2rem;
  font-weight: 900;
  margin: 0;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  position: relative;
}

.pau-page-header .pau-page-sub {
  color: rgba(255, 255, 255, 0.92);
  font-size: 1rem;
  margin: 0.5rem 0 0 0;
  font-weight: 500;
  position: relative;
}

/* Cards */
.pau-card {
  background: white;
  border-radius: 18px;
  box-shadow: var(--pau-shadow-md);
  padding: 2rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}

.pau-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--pau-maroon) 0%,
    var(--pau-maroon-light) 50%,
    var(--pau-maroon) 100%
  );
}

.pau-section-title {
  color: var(--pau-maroon);
  font-size: 1.75rem;
  font-weight: 900;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pau-section-title i {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--pau-maroon) 0%, var(--pau-maroon-light) 100%);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(103, 14, 10, 0.25);
}

/* ==========================================================================
   Program timeline / Table
   ========================================================================== */
.pau-timeline {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.pau-timeline-item {
  display: flex;
  align-items: stretch;
  gap: 1rem;
  background: var(--pau-bg-soft);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(103, 14, 10, 0.08);
  transition: all 0.25s ease;
}

.pau-timeline-item:hover {
  background: white;
  border-color: var(--pau-maroon);
  box-shadow: 0 6px 18px rgba(103, 14, 10, 0.1);
  transform: translateY(-2px);
}

.pau-timeline-time {
  flex-shrink: 0;
  min-width: 130px;
  background: linear-gradient(135deg, var(--pau-maroon) 0%, var(--pau-maroon-light) 100%);
  color: white;
  font-weight: 800;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 0.85rem;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  direction: ltr;
  box-shadow: 0 4px 14px rgba(103, 14, 10, 0.2);
}

.pau-timeline-title {
  flex: 1;
  font-size: 1rem;
  font-weight: 700;
  color: var(--pau-text-dark);
  display: flex;
  align-items: center;
  line-height: 1.5;
}

/* ==========================================================================
   Gallery grid
   ========================================================================== */
.pau-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.pau-gallery-item {
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 4 / 3;
  box-shadow: var(--pau-shadow-sm);
  transition: all 0.3s ease;
  background: var(--pau-bg-grey);
  cursor: pointer;
}

.pau-gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(103, 14, 10, 0.2);
}

.pau-gallery-item a {
  display: block;
  width: 100%;
  height: 100%;
}

.pau-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.pau-gallery-item:hover img {
  transform: scale(1.06);
}

.pau-gallery-item::after {
  content: '\f00e';
  font-family: 'Font Awesome 5 Free', 'FontAwesome';
  font-weight: 900;
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(103, 14, 10, 0.85), rgba(139, 20, 16, 0.7));
  color: white;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pau-gallery-item:hover::after {
  opacity: 1;
}

.pau-gallery-empty {
  text-align: center;
  padding: 4rem 1.5rem;
  background: var(--pau-bg-soft);
  border-radius: 16px;
  border: 2px dashed rgba(103, 14, 10, 0.2);
}

.pau-gallery-empty i {
  font-size: 3.5rem;
  color: var(--pau-maroon);
  margin-bottom: 1rem;
  opacity: 0.55;
}

.pau-gallery-empty h3 {
  color: var(--pau-maroon);
  font-size: 1.4rem;
  margin: 0 0 0.5rem 0;
}

.pau-gallery-empty p {
  color: var(--pau-text-muted);
  margin: 0;
  font-size: 1rem;
}

/* ==========================================================================
   Students table styling
   ========================================================================== */
.pau-students-wrapper {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.pau-side-menu {
  position: sticky;
  top: 110px;
  background: white;
  border-radius: 16px;
  box-shadow: var(--pau-shadow-sm);
  padding: 1.25rem;
  max-height: calc(100vh - 140px);
  overflow-y: auto;
  border: 1px solid var(--pau-border);
}

.pau-side-menu h3 {
  font-size: 1rem;
  margin: 0 0 0.85rem 0;
  padding-bottom: 0.65rem;
  border-bottom: 2px solid var(--pau-gold);
  color: var(--pau-maroon);
}

.pau-side-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pau-side-menu li {
  margin-bottom: 0.35rem;
}

.pau-side-menu a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  color: var(--pau-text-dark);
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.4;
  transition: all 0.2s ease;
  border-right: 3px solid transparent;
}

.pau-side-menu a:hover {
  background: rgba(103, 14, 10, 0.07);
  color: var(--pau-maroon);
  border-right-color: var(--pau-maroon);
}

.pau-students-content {
  background: white;
  border-radius: 16px;
  box-shadow: var(--pau-shadow-sm);
  padding: 1.5rem;
  min-height: 300px;
}

.pau-students-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.92rem;
}

.pau-students-content table th,
.pau-students-content table td {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--pau-border);
  text-align: right;
  vertical-align: middle;
}

.pau-students-content table th {
  background: var(--pau-bg-soft);
  font-weight: 800;
  color: var(--pau-text-dark);
}

.pau-students-content table tr:hover td {
  background: rgba(103, 14, 10, 0.03);
}

.pau-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  padding: 3rem;
  color: var(--pau-maroon);
}

.pau-loading .pau-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(103, 14, 10, 0.15);
  border-top-color: var(--pau-maroon);
  border-radius: 50%;
  animation: pau-spin 0.8s linear infinite;
}

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

/* ==========================================================================
   Anthem page
   ========================================================================== */
.pau-anthem-card {
  background: white;
  border-radius: 20px;
  box-shadow: var(--pau-shadow-md);
  padding: 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pau-anthem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--pau-gold), var(--pau-maroon), var(--pau-gold));
}

.pau-anthem-card img {
  border-radius: 14px;
  box-shadow: 0 8px 28px rgba(103, 14, 10, 0.15);
  max-width: 100%;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.pau-footer {
  background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
  color: white;
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
  border-top: 4px solid var(--pau-maroon);
  margin-top: auto;
}

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

.pau-footer-logo {
  width: 70px;
  height: 70px;
  background: white;
  border-radius: 16px;
  padding: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.pau-footer-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.pau-footer p {
  margin: 0 0 1rem 0;
  font-size: 0.95rem;
  color: #e2e8f0;
  font-weight: 500;
}

.pau-footer-social {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  padding: 0;
  margin: 0 0 1rem 0;
}

.pau-footer-social a {
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.pau-footer-social a:hover {
  background: var(--pau-maroon);
  transform: translateY(-3px);
}

.pau-footer-social img {
  width: 18px;
  height: 18px;
  filter: brightness(0) invert(1);
}

.pau-footer-copy {
  font-size: 0.85rem;
  color: #a0aec0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1rem;
  margin-top: 1rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 992px) {
  .pau-students-wrapper {
    grid-template-columns: 1fr;
  }
  .pau-side-menu {
    position: relative;
    top: 0;
    max-height: 320px;
  }
  .pau-hero-title { font-size: 2rem; }
  .pau-page-header h1 { font-size: 1.8rem; }
}

@media (max-width: 768px) {
  .pau-nav-toggle {
    display: inline-flex;
  }
  .pau-nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.18);
    border-radius: 12px;
  }
  .pau-nav-menu.open {
    display: flex;
  }
  .pau-nav-menu li a {
    width: 100%;
    text-align: center;
  }
  .pau-brand-text h1 { font-size: 1rem; }
  .pau-brand-text span { font-size: 0.72rem; }
  .pau-brand-logo { width: 48px; height: 48px; }
  .pau-hero-title { font-size: 1.6rem; }
  .pau-hero-subtitle { font-size: 1rem; }
  .pau-hero-inner { padding: 1.5rem; }
  .pau-page-header { padding: 2.5rem 1rem 2rem; }
  .pau-page-header h1 { font-size: 1.5rem; }
  .pau-section { padding: 2rem 0; }
  .pau-section-title { font-size: 1.35rem; }
  .pau-timeline-item { flex-direction: column; }
  .pau-timeline-time { min-width: unset; align-self: flex-start; }
  .pau-container { padding: 0 1rem; }
}

@media (max-width: 480px) {
  .pau-hero-title { font-size: 1.35rem; }
  .pau-page-header h1 { font-size: 1.3rem; }
  .pau-card { padding: 1.25rem; }
}