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

:root {
  --color-primary: #1a237e;
  --color-primary-light: #3949ab;
  --color-primary-dark: #0d1642;
  --color-secondary: #f59e0b;
  --color-secondary-light: #fbbf24;
  --color-accent: #6366f1;
  --color-text-dark: #1f2937;
  --color-text-medium: #4b5563;
  --color-text-light: #9ca3af;
  --color-background: #f9fafb;
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --font-primary: "Cairo", sans-serif;
  --font-secondary: "Tajawal", sans-serif;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 80px;
}

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 var(--spacing-lg);
}
.title-meet {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  border-bottom: 3px solid var(--color-secondary);
  display: inline-block;
  padding-bottom: 20px;
  margin-top: 40px;
  margin-right: 20px;
}

strong {
  color: var(--color-primary);
}

.hero {
  background-color: var(--color-white);
  padding: 40px 20px;
  margin-bottom: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.hero p {
  font-size: 1.2rem;
  text-align: center;
  margin-bottom: 10px;
  color: #555;
}

.hero .location-time {
  color: var(--color-secondary);
  font-weight: 700;
}

section {
  background-color: var(--color-white);
  padding: 30px;
  margin-bottom: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  padding: 20px 0;
}

.member-card {
  background-color: var(--color-light-bg);
  padding: 15px;
  border-right: 5px solid var(--color-primary);
  border-radius: 5px;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.member-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.member-card strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 5px;
  color: var(--color-primary-dark);
}

.member-card span {
  font-size: 0.95rem;
  color: var(--color-text-dark);
}

.agenda-list,
.topics-list {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

.agenda-list li,
.topics-list li {
  padding: 15px;
  border-bottom: 1px dashed #eee;
  font-size: 1.1rem;
  transition: background-color 0.3s ease;
}

.agenda-list li:hover,
.topics-list li:hover {
  background-color: var(--color-light-bg);
}

.agenda-list li:last-child,
.topics-list li:last-child {
  border-bottom: none;
}

.agenda-list li::before {
  content: "*";
  display: inline-block;
  margin-left: 10px;
}

.topics-list li::before {
  content: "*";
  display: inline-block;
  margin-left: 10px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 20px 0;
}

.gallery-grid > div {
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  background-color: var(--color-primary-dark);
  aspect-ratio: 4 / 3;
}

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

.gallery-grid > div:hover img {
  transform: scale(1.06);
}

.gallery-item {
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  background-color: var(--color-primary-dark);
  aspect-ratio: 4 / 3;
}

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

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

.caption {
  padding: 10px;
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}

.agenda-list li,
.topics-list li,
.member-card,
.gallery-item {
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
  transition-delay: var(--delay, 0s);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.title-page {
  text-align: center;
}
.agenda-list li:nth-child(1),
.topics-list li:nth-child(1),
.member-card:nth-child(1),
.gallery-item:nth-child(1) {
  --delay: 0s;
}
.agenda-list li:nth-child(2),
.topics-list li:nth-child(2),
.member-card:nth-child(2),
.gallery-item:nth-child(2) {
  --delay: 0.1s;
}
.agenda-list li:nth-child(3),
.topics-list li:nth-child(3),
.member-card:nth-child(3),
.gallery-item:nth-child(3) {
  --delay: 0.2s;
}
.agenda-list li:nth-child(4),
.topics-list li:nth-child(4),
.member-card:nth-child(4),
.gallery-item:nth-child(4) {
  --delay: 0.3s;
}
.agenda-list li:nth-child(5),
.topics-list li:nth-child(5),
.member-card:nth-child(5) {
  --delay: 0.4s;
}
.agenda-list li:nth-child(6),
.topics-list li:nth-child(6),
.member-card:nth-child(6) {
  --delay: 0.5s;
}
.agenda-list li:nth-child(7),
.topics-list li:nth-child(7),
.member-card:nth-child(7) {
  --delay: 0.6s;
}
.agenda-list li:nth-child(8),
.topics-list li:nth-child(8),
.member-card:nth-child(8) {
  --delay: 0.7s;
}
.topics-list li:nth-child(9) {
  --delay: 0.8s;
}
.topics-list li:nth-child(10) {
  --delay: 0.9s;
}

@media (max-width: 600px) {
  main.conference-page {
    padding: 10px;
  }

  h1 {
    padding-top: 20px;
  }

  .hero,
  section {
    padding: 20px 15px;
    margin-bottom: 20px;
  }

  .member-card {
    padding: 10px;
  }

  .member-card strong {
    font-size: 1rem;
  }
}

/*************************************************************************** */
.posters-list li {
  background-color: white;
  padding: 10px;
  border-right: 5px solid var(--color-primary);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
  border-radius: 0 4px 4px 0;
  margin-bottom: 10px;
  transition: background-color 0.3s ease;
}
.posters-list li:hover {
  background-color: #e6e6e6;
}

.posters-list {
  list-style-type: none;
  padding: 0;
}

/******************************************************************************** */

/* main {
  padding: var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

.section-TXTT {
  font-size: 2rem;
  color: var(--color-primary-dark);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  padding-top: var(--spacing-md);
}

.gallery-grid-section {
  padding: var(--spacing-lg) 0;
}

.gallery-grid-section p {
  padding: var(--spacing-md);
  font-weight: bold;
  color: var(--color-primary-dark);
}


.grid-item {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.grid-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.grid-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.item-info {
  padding: var(--spacing-sm);
  text-align: center;
}

.item-info h3 {
  font-size: var(--font-size-subtitle);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.item-info p {
  color: var(--color-secondary);
  font-size: 0.9em;
}

.featured-info-section {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--spacing-lg);
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  margin-top: var(--spacing-lg);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.info-content {
  flex: 2;
}

.info-content .section-TXTT {
  text-align: right;
  margin-bottom: var(--spacing-sm);
  padding-top: 0;
  font-size: 2em;
}

.info-content p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-dark);
}

.info-image {
  flex: 1;
  min-width: 250px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.info-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius-md);
}

.btn-primary {
  display: inline-block;
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease;
  border: 2px solid var(--color-secondary);
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--color-secondary);
}

@media (max-width: 992px) {
  .section-TXTT {
    font-size: 2em;
    margin-bottom: var(--spacing-md);
  }
  .featured-info-section {
    flex-direction: column;
    text-align: center;
  }
  .info-content .section-TXTT {
    text-align: center;
  }
  .info-image {
    order: -1;
    margin-bottom: var(--spacing-sm);
  }
  .btn-primary {
    margin-top: var(--spacing-sm);
  }
}

@media (max-width: 576px) {
  :root {
    --font-size-title: 1.8em;
    --spacing-md: 16px;
  }
  main {
    padding: var(--spacing-sm);
  }
  .gallery-grid {
    grid-template-columns: 1fr;
  }
} */