:root {
  --font-primary: "Cairo", sans-serif;
  --font-secondary: "Tajawal", sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-background);
  overflow-x: hidden;
  direction: rtl;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 300ms;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}


         /* PAGE HERO BANNER */
.page-hero {
  background: linear-gradient(
    135deg,
    var(--color-primary-dark) 0%,
    var(--color-primary) 60%,
    var(--color-primary-light) 100%
  );
  padding: 4rem 0 3rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 70%;
  height: 200%;
  background: radial-gradient(
    ellipse,
    rgba(189, 157, 108, 0.15) 0%,
    transparent 60%
  );
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: var(--color-background);
  clip-path: ellipse(55% 100% at 50% 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(189, 157, 108, 0.25);
  border: 1px solid rgba(189, 157, 108, 0.4);
  color: var(--color-secondary-light);
  padding: 0.4rem 1.2rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}
.hero-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.hero-title span {
  color: var(--color-secondary);
}
.hero-subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 600px;
  margin: 0 auto 2rem;
}

         /* MAIN CONTENT AREA */
.page-main {
  padding: 3rem 0 4rem;
  max-width: 1320px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

         /* LECTURE EVENT CARD */
.lecture-card {
  background: var(--color-white);
  border-radius: 1.25rem;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.07),
    0 2px 4px -1px rgba(0, 0, 0, 0.04);
  margin-bottom: 3.5rem;
  overflow: hidden;
  transition:
    transform 300ms,
    box-shadow 300ms;
  border: 1px solid rgba(26, 35, 126, 0.06);
}
.lecture-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.lecture-card-header {
  background: linear-gradient(
    135deg,
    var(--color-primary-dark) 0%,
    var(--color-primary) 100%
  );
  padding: 2rem 2.5rem;
  position: relative;
  overflow: hidden;
}
.lecture-card-header::before {
  content: "";
  position: absolute;
  top: -30px;
  left: -30px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}
.lecture-card-header::after {
  content: "";
  position: absolute;
  bottom: -50px;
  right: -20px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(189, 157, 108, 0.08);
  pointer-events: none;
}

.card-header-content {
  position: relative;
  z-index: 1;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(189, 157, 108, 0.2);
  border: 1px solid rgba(189, 157, 108, 0.35);
  color: var(--color-secondary-light);
  padding: 0.3rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.card-title {
  font-size: clamp(1.15rem, 2.5vw, 1.55rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.4;
  margin-bottom: 1rem;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.meta-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}
.meta-item i {
  color: var(--color-secondary);
  font-size: 0.9rem;
}

/* Body */
.lecture-card-body {
  padding: 2rem 2.5rem;
}

.lecture-description {
  font-size: 1rem;
  color: var(--color-text-medium);
  line-height: 1.9;
  border-right: 4px solid var(--color-secondary);
  padding-right: 1.25rem;
  margin-bottom: 2rem;
  background: linear-gradient(to left, rgba(189, 157, 108, 0.04), transparent);
  padding: 1.25rem 1.5rem;
  border-radius: 0 0.75rem 0.75rem 0;
}

/* Gallery inside card */
.lecture-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.lecture-gallery.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}
.lecture-gallery.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.gallery-thumb {
  position: relative;
  overflow: hidden;
  border-radius: 0.875rem;
  aspect-ratio: 4/3;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}
.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  display: block;
}
.gallery-thumb:hover img {
  transform: scale(1.08);
}
.gallery-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(13, 22, 66, 0.65) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity 300ms;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 1rem;
}

/* RESPONSIVE */

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-logo {
    grid-column: span 2;
  }
  .lecture-gallery.cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .page-hero {
    padding: 2.5rem 0 2rem;
  }
  .hero-stats {
    gap: 1.5rem;
  }
  .lecture-gallery,
  .lecture-gallery.cols-2,
  .lecture-gallery.cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .lecture-card-header,
  .lecture-card-body {
    padding: 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 576px) {
  .lecture-gallery,
  .lecture-gallery.cols-2 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-logo {
    grid-column: span 1;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
  .contact-info {
    display: none;
  }
  .card-meta {
    gap: 0.75rem;
  }
}