:root {
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --surface: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --primary: #3b82f6;
  --primary-600: #2563eb;
  --accent: #3b82f6;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Tajawal', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, var(--bg) 0%, #f1f5f9 100%);
  color: var(--text);
}

.container { width: min(1200px, 92%); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,.1);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.header-logos { display: flex; align-items: center; gap: 16px; }
.logo { display: inline-flex; align-items: center; text-decoration: none; }
.logo-text { 
  font-size: 18px; 
  font-weight: 700; 
  color: var(--text); 
  text-decoration: none;
  transition: color 0.3s ease;
}
.logo-text:hover { 
  color: var(--primary); 
}
.header-logo { 
  height: 120px; 
  width: auto; 
  object-fit: contain; 
  opacity: 0.9; 
  transition: opacity 0.3s ease; 
}
.header-logo:hover { 
  opacity: 1; 
}
.nav-toggle { display: none; background: transparent; border: 1px solid rgba(0,0,0,.2); color: var(--text); padding: 8px 10px; border-radius: 8px; }
.site-nav ul { list-style: none; display: flex; gap: 18px; margin: 0; padding: 0; }
.site-nav a { color: var(--text); text-decoration: none; padding: 8px 10px; border-radius: 8px; }
.site-nav a:hover { background: rgba(0,0,0,.06); }

/* Hero */
.hero { 
  padding: 100px 0 70px; 
  background: 
    url('تصميم بدون عنوان (3).svg') center/cover no-repeat,
    radial-gradient(1200px 400px at 50% -200px, rgba(59,130,246,.2), transparent 60%),
    radial-gradient(500px 240px at 0% 0%, rgba(59,130,246,.1), transparent 60%);
  background-blend-mode: overlay;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.7);
  z-index: 1;
}
.hero .container {
  position: relative;
  z-index: 2;
}
.hero-inner { text-align: center; }
.hero-logo { 
  width: min(80%, 500px); 
  max-width: 100%; 
  height: auto; 
  margin: 0 auto 30px; 
  display: block; 
  filter: drop-shadow(0 10px 24px rgba(0,0,0,.45)); 
}
.hero-title { 
  margin: 0 0 20px; 
  font-size: 48px; 
  font-weight: 800; 
  color: var(--primary);
  line-height: 1.2;
}
.hero-org-logos { 
  display: flex; 
  gap: 20px; 
  justify-content: center; 
  align-items: center; 
  margin: 0 0 30px; 
}
.hero-org-logo { 
  height: 80px; 
  width: auto; 
  object-fit: contain; 
  opacity: 0.9; 
  transition: opacity 0.3s ease; 
}
.hero-org-logo:hover { 
  opacity: 1; 
}
.hero-badge { display: inline-block; background: rgba(59,130,246,.18); color: #60a5fa; padding: 8px 14px; border-radius: 999px; font-weight: 600; margin-bottom: 16px; }
.hero-subtitle { color: var(--muted); margin: 0 0 30px; font-size: 20px; }
.hero-meta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; padding: 0; margin: 0 0 12px; list-style: none; color: var(--muted); }
.hero-location { color: var(--muted); margin: 0 0 30px; font-size: 16px; }
.hero-cta { display: flex; gap: 12px; justify-content: center; }

/* Sections */
.section { padding: 70px 0; }
.section.alt { background: linear-gradient(180deg, var(--bg-alt), rgba(248,250,252,.6)); border-block: 1px solid rgba(0,0,0,.06); }
.section h2 { margin-top: 0; font-size: 28px; }
.muted { color: var(--muted); }
.small-note { font-size: 14px; margin-top: 12px; }

.about-meta { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); margin-top: 14px; }
.about-card { 
  display: flex; 
  flex-direction: column; 
  align-items: center; 
  gap: 15px; 
  text-align: center;
  padding: 20px;
}
.icon { font-size: 20px; margin-inline-start: 4px; }
.org-logo { 
  width: 400px; 
  height: 400px; 
  object-fit: contain; 
}
.org-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.icon-list { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 10px; }
.icon-list li { background: var(--surface); border: 1px solid rgba(0,0,0,.06); border-radius: 12px; padding: 12px 14px; }
.check-list { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.check-list li { padding: 10px 12px; border: 1px dashed rgba(0,0,0,.15); border-radius: 10px; }

.programs-grid { grid-template-columns: 1fr; }
.program { display: flex; align-items: center; gap: 10px; }

/* Buttons */
.btn { 
  display: inline-block; 
  text-decoration: none; 
  color: #fff; 
  padding: 16px 32px; 
  border-radius: 50px; 
  border: 2px solid var(--primary);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}
.btn:hover::before {
  left: 100%;
}
.btn.primary { 
  background: linear-gradient(135deg, var(--primary), var(--primary-600)); 
  border-color: var(--primary); 
  box-shadow: 0 4px 15px rgba(59,130,246,.3);
}
.btn.primary:hover { 
  background: linear-gradient(135deg, var(--primary-600), var(--primary)); 
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(59,130,246,.5);
}
.btn.ghost { 
  background: transparent; 
  color: var(--primary);
}
.btn.ghost:hover { 
  background: var(--primary); 
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(59,130,246,.3);
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Tabs */
.tabs { display: inline-flex; gap: 8px; background: rgba(0,0,0,.06); padding: 6px; border-radius: 14px; }
.tab { background: transparent; color: var(--text); border: 0; padding: 10px 14px; border-radius: 10px; cursor: pointer; }
.tab.active { background: var(--primary); color: #fff; }
.tab-panel.hidden { display: none; }

.agenda-list { margin: 16px 0 0; display: grid; gap: 12px; }
.agenda-item { 
  background: var(--surface); 
  border: 1px solid rgba(0,0,0,.06); 
  border-radius: 12px; 
  padding: 16px; 
  box-shadow: var(--shadow); 
  transition: all 0.3s ease;
  cursor: pointer;
}
.agenda-item:hover { 
  transform: translateY(-2px); 
  box-shadow: 0 15px 40px rgba(0,0,0,.2);
  border-color: rgba(59,130,246,.3);
}
.agenda-item time { 
  color: #3b82f6; 
  font-weight: 600; 
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
}
.agenda-content h4 { 
  margin: 0 0 6px; 
  font-size: 16px; 
  color: var(--text);
}
.agenda-type { 
  color: var(--accent); 
  font-weight: 500; 
  margin: 0 0 4px;
  font-size: 14px;
}
.speaker-name { 
  color: var(--muted); 
  font-size: 13px; 
  margin: 0;
  font-style: italic;
}

/* Grid */
.grid { display: grid; gap: 16px; }
.speakers-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.news-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.sponsors-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); align-items: stretch; }

/* Speakers Section */
.speakers-section { margin-top: 20px; }
.speakers-section h3 { 
  color: var(--accent); 
  font-size: 20px; 
  margin: 24px 0 16px 0; 
  font-weight: 600;
}
.speakers-section h3:first-child { margin-top: 0; }

/* Cards */
.card { 
  background: var(--surface); 
  border: 1px solid rgba(0,0,0,.06); 
  border-radius: var(--radius); 
  padding: 18px; 
  box-shadow: var(--shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease forwards;
}
.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }
.card:hover { 
  transform: translateY(-8px); 
  box-shadow: 0 20px 50px rgba(0,0,0,.2);
  border-color: rgba(59,130,246,.2);
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.speaker .avatar { 
  width: 100%; 
  height: 160px; 
  border-radius: 12px; 
  background: linear-gradient(135deg, rgba(59,130,246,.3), rgba(59,130,246,.25)); 
  margin-bottom: 12px; 
  object-fit: cover;
  transition: transform 0.3s ease;
}
.speaker:hover .avatar { 
  transform: scale(1.05);
}
.speaker .avatar.placeholder { 
  background: linear-gradient(135deg, rgba(0,0,0,.1), rgba(0,0,0,.03)); 
}
.sponsor { 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  min-height: 90px; 
  text-align: center; 
  color: var(--muted); 
  font-weight: 600;
  transition: all 0.3s ease;
}
.sponsor:hover { 
  color: var(--text);
  transform: scale(1.05);
}

/* Sponsors Section */
.sponsors-section { margin-top: 20px; }
.sponsor-tier { 
  margin-bottom: 40px; 
  text-align: center;
}
.sponsor-tier h3 { 
  color: var(--accent); 
  font-size: 20px; 
  margin-bottom: 20px; 
  font-weight: 600;
}
.sponsor-logo { 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  padding: 20px;
  background: var(--surface);
  border: 1px solid rgba(0,0,0,.06);
  border-radius: 12px;
  transition: all 0.3s ease;
}
.sponsor-logo:hover { 
  transform: translateY(-4px); 
  box-shadow: 0 20px 50px rgba(0,0,0,.2);
  border-color: rgba(59,130,246,.2);
}
.sponsor-logo img { 
  max-width: 600px; 
  max-height: 360px; 
  object-fit: contain; 
}

/* جميع الرعاة بنفس الحجم المناسب */
.sponsor-tier .sponsor-logo img {
  max-width: 100%;
  max-height: 150px;
  object-fit: contain;
  transform: none;
}

/* تأثيرات متحركة للذكاء الاصطناعي */
.ai-animation {
  position: relative;
  overflow: hidden;
}

.ai-animation::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 20%, rgba(59,130,246,0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(59,130,246,0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 60%, rgba(59,130,246,0.05) 0%, transparent 50%);
  animation: aiPulse 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes aiPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.05); }
}

/* تأثيرات العقد المتصلة */
.node-network {
  position: relative;
}

.node-network::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200px;
  height: 200px;
  background: 
    radial-gradient(circle at 30% 30%, rgba(59,130,246,0.2) 2px, transparent 2px),
    radial-gradient(circle at 70% 30%, rgba(59,130,246,0.2) 2px, transparent 2px),
    radial-gradient(circle at 30% 70%, rgba(59,130,246,0.2) 2px, transparent 2px),
    radial-gradient(circle at 70% 70%, rgba(59,130,246,0.2) 2px, transparent 2px);
  background-size: 50px 50px;
  transform: translate(-50%, -50%);
  animation: nodeFloat 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes nodeFloat {
  0%, 100% { transform: translate(-50%, -50%) rotate(0deg); }
  50% { transform: translate(-50%, -50%) rotate(180deg); }
}

/* تأثيرات للبطاقات */
.card.ai-enhanced {
  position: relative;
  overflow: hidden;
}

.card.ai-enhanced::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(59,130,246,0.1), transparent);
  transform: rotate(45deg);
  animation: cardShine 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes cardShine {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* صورة اللوجستيات */
.cargo-image-section {
  padding: 40px 0;
  background: var(--bg);
}

.cargo-image {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  margin: 0 auto;
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.sponsors-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
  gap: 20px; 
}

/* Contact */
.contact-grid { display: grid; gap: 22px; grid-template-columns: 1fr; }
.contact-form { display: grid; gap: 12px; }
.contact-form label { display: grid; gap: 6px; font-weight: 600; }
.contact-form input, .contact-form textarea {
  background: #f8fafc; color: var(--text); border: 1px solid rgba(0,0,0,.12); padding: 12px; border-radius: 10px;
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--primary); outline-offset: 2px; }

/* Footer */
.site-footer { border-top: 1px solid rgba(0,0,0,.06); padding: 24px 0; background: rgba(248,250,252,.7); }
.footer-inner { display: flex; flex-direction: column; gap: 16px; align-items: center; text-align: center; }
.footer-logo { 
  height: 200px; 
  width: auto; 
  object-fit: contain; 
  opacity: 0.9; 
  transition: opacity 0.3s ease; 
}
.footer-logo:hover { 
  opacity: 1; 
}
.site-footer nav { display: flex; gap: 12px; flex-wrap: wrap; }
.site-footer a { color: var(--text); text-decoration: none; opacity: .85; }
.site-footer a:hover { opacity: 1; }

/* Mobile First Responsive Design */
@media (max-width: 768px) {
  /* إصلاح مشكلة الشاشة البيضاء */
  body {
    background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
    min-height: 100vh;
    overflow-x: hidden;
  }
  
  /* تحسين الحاوي */
  .container { 
    width: 95%; 
    padding: 0 10px;
    margin: 0 auto;
  }
  
  /* تحسين الهيدر */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.1);
    padding: 10px 0;
  }
  
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0;
    flex-wrap: wrap;
  }
  
  .header-logos {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
  }
  
  .header-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
  }
  
  .nav-toggle {
    display: block;
    background: transparent;
    border: 1px solid rgba(0,0,0,0.2);
    color: var(--text);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 18px;
    cursor: pointer;
  }
  
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  }
  
  .site-nav.open {
    display: block;
  }
  
  .site-nav ul {
    flex-direction: column;
    padding: 20px;
    margin: 0;
    gap: 0;
  }
  
  .site-nav li {
    border-bottom: 1px solid rgba(0,0,0,0.05);
  }
  
  .site-nav li:last-child {
    border-bottom: none;
  }
  
  .site-nav a {
    display: block;
    padding: 15px 0;
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
  }
  
  .site-nav a:hover {
    color: var(--primary);
    background: none;
  }
  
  /* تحسين قسم البطل */
  .hero {
    padding: 60px 0 40px;
    background: 
      url('تصميم بدون عنوان (3).svg') center/cover no-repeat,
      radial-gradient(800px 300px at 50% -100px, rgba(59,130,246,.2), transparent 60%),
      radial-gradient(400px 200px at 0% 0%, rgba(59,130,246,.1), transparent 60%);
    background-blend-mode: overlay;
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
  }
  
  .hero-inner {
    text-align: center;
    width: 100%;
  }
  
  .hero-logo {
    width: min(90%, 300px);
    max-width: 100%;
    height: auto;
    margin: 0 auto 20px;
    display: block;
  }
  
  .hero-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.3;
    margin: 0 0 15px;
    padding: 0 10px;
  }
  
  .hero-subtitle {
    font-size: 16px;
    color: var(--muted);
    margin: 0 0 20px;
    padding: 0 10px;
    line-height: 1.5;
  }
  
  .hero-meta {
    flex-direction: column;
    gap: 8px;
    margin: 0 0 15px;
    padding: 0 10px;
  }
  
  .hero-meta li {
    font-size: 14px;
    text-align: center;
  }
  
  .hero-location {
    font-size: 14px;
    color: var(--muted);
    margin: 0 0 25px;
    padding: 0 10px;
  }
  
  .hero-cta {
    display: flex;
    justify-content: center;
    padding: 0 10px;
  }
  
  .btn {
    padding: 14px 28px;
    font-size: 14px;
    border-radius: 25px;
    width: 100%;
    max-width: 250px;
  }
  
  /* تحسين الأقسام */
  .section {
    padding: 40px 0;
  }
  
  .section h2 {
    font-size: 24px;
    margin-bottom: 20px;
    text-align: center;
    padding: 0 10px;
  }
  
  /* تحسين بطاقات المتحدثين */
  .speakers-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 10px;
  }
  
  .speaker {
    text-align: center;
  }
  
  .speaker .avatar {
    width: 100%;
    height: 200px;
    border-radius: 12px;
    margin-bottom: 15px;
    object-fit: cover;
  }
  
  .speaker h3 {
    font-size: 18px;
    margin: 0 0 8px;
  }
  
  .speaker p {
    font-size: 14px;
    line-height: 1.4;
  }
  
  /* تحسين قائمة الأهداف */
  .icon-list {
    padding: 0 10px;
  }
  
  .icon-list li {
    padding: 15px;
    margin-bottom: 10px;
    font-size: 14px;
    line-height: 1.5;
  }
  
  .icon-list .icon {
    font-size: 18px;
    margin-left: 8px;
  }
  
  /* تحسين قائمة الفئة المستهدفة */
  .check-list {
    padding: 0 10px;
  }
  
  .check-list li {
    padding: 12px;
    font-size: 14px;
    line-height: 1.5;
  }
  
  /* تحسين برامج المؤتمر */
  .programs-grid {
    grid-template-columns: 1fr;
    gap: 15px;
    padding: 0 10px;
  }
  
  .program {
    padding: 15px;
    font-size: 14px;
    line-height: 1.5;
  }
  
  .program .icon {
    font-size: 18px;
    margin-left: 8px;
  }
  
  /* تحسين جدول المؤتمر */
  .tabs {
    display: flex;
    gap: 4px;
    background: rgba(0,0,0,0.06);
    padding: 4px;
    border-radius: 12px;
    margin: 20px 10px;
  }
  
  .tab {
    flex: 1;
    padding: 12px 8px;
    font-size: 14px;
    text-align: center;
  }
  
  .agenda-list {
    padding: 0 10px;
  }
  
  .agenda-item {
    padding: 15px;
    margin-bottom: 10px;
  }
  
  .agenda-item time {
    font-size: 13px;
    margin-bottom: 8px;
  }
  
  .agenda-content h4 {
    font-size: 15px;
    margin: 0 0 6px;
    line-height: 1.4;
  }
  
  .agenda-type {
    font-size: 13px;
    margin: 0 0 4px;
  }
  
  .speaker-name {
    font-size: 12px;
    margin: 2px 0;
  }
  
  /* تحسين الرعاة */
  .sponsors-section {
    padding: 0 10px;
  }
  
  .sponsor-tier {
    margin-bottom: 30px;
  }
  
  .sponsor-tier h3 {
    font-size: 18px;
    margin-bottom: 15px;
  }
  
  .sponsor-logo {
    padding: 15px;
    margin-bottom: 10px;
  }
  
  .sponsor-logo img {
    max-width: 100%;
    max-height: 120px;
    object-fit: contain;
  }
  
  .sponsors-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  /* جميع الرعاة بنفس الحجم المناسب في الهواتف */
  .sponsor-logo img {
    max-width: 100%;
    max-height: 120px;
    object-fit: contain;
    transform: none;
  }
  
  /* تحسين صورة اللوجستيات */
  .cargo-image-section {
    padding: 20px 0;
  }
  
  .cargo-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
  }
  
  /* تحسين الفوتر */
  .site-footer {
    padding: 30px 0;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
    padding: 0 10px;
  }
  
  .footer-logo {
    height: 60px;
    width: auto;
  }
  
  .site-footer nav {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .site-footer a {
    font-size: 14px;
  }
  
  .site-footer p {
    font-size: 12px;
    margin: 0;
  }
  
  /* تحسين بطاقات حول المؤتمر */
  .about-meta {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 10px;
  }
  
  .about-card {
    padding: 20px;
  }
  
  .org-logo {
    width: 200px;
    height: 200px;
    object-fit: contain;
  }
  
  .org-text {
    font-size: 14px;
    text-align: center;
  }
}

/* تحسينات إضافية للهواتف الصغيرة جداً */
@media (max-width: 480px) {
  .container {
    width: 98%;
    padding: 0 5px;
  }
  
  .hero-title {
    font-size: 20px;
  }
  
  .hero-subtitle {
    font-size: 14px;
  }
  
  .section h2 {
    font-size: 20px;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 13px;
  }
  
  .speaker .avatar {
    height: 150px;
  }
  
  .agenda-content h4 {
    font-size: 14px;
  }
  
  .sponsor-logo img {
    max-height: 80px;
  }
}

/* تحسينات للهواتف الأكبر قليلاً */
@media (min-width: 769px) and (max-width: 1024px) {
  .container {
    width: 90%;
  }
  
  .hero-title {
    font-size: 36px;
  }
  
  .hero-subtitle {
    font-size: 18px;
  }
  
  .speakers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .sponsors-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}