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

:root {
  --primary: #7a1a1a;
  --primary-light: #9e2b2b;
  --primary-dark: #4a0e0e;
  --bg: #ffffff;
  --bg-secondary: #f7f2f2;
  --text: #1a1a1a;
  --text-muted: #6b6b6b;
  --border: #e5e0e0;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --radius: 12px;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; }

/* NAVBAR */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-container {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 64px;
}
.nav-logo { display: flex; align-items: center; gap: 8px; }
.logo-text { font-size: 1.25rem; font-weight: 800; color: var(--primary); }
.logo-sub { font-size: 0.8rem; color: var(--text-muted); }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 16px; border-radius: 8px; font-size: 0.9rem; font-weight: 500;
  color: var(--text-muted); transition: all 0.2s;
}
.nav-link:hover, .nav-link.active { color: var(--primary); background: var(--bg-secondary); }
.dropdown { position: relative; }
.dropdown-toggle { cursor: pointer; }
.arrow { font-size: 0.7rem; margin-left: 2px; }
.dropdown-menu {
  display: none; position: absolute; top: 100%; left: 0;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  min-width: 220px; padding: 8px 0; z-index: 100;
}
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block; padding: 10px 20px; font-size: 0.9rem;
  color: var(--text-muted); transition: all 0.2s;
}
.dropdown-menu a:hover { color: var(--primary); background: var(--bg-secondary); }
.mobile-toggle {
  display: none; background: none; border: none;
  font-size: 1.5rem; cursor: pointer; color: var(--text);
}

/* HERO */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #7a1a1a 0%, #4a0e0e 50%, #1a1a2e 100%);
  text-align: center; padding: 100px 24px 60px; position: relative;
}
.hero-content { max-width: 800px; position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; border-radius: 50px;
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
  color: #fff; font-size: 0.85rem; margin-bottom: 32px;
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900;
  color: #fff; line-height: 1.1; margin-bottom: 20px;
}
.hero h1 span { opacity: 0.8; }
.hero p { color: rgba(255,255,255,0.7); font-size: 1.1rem; margin-bottom: 10px; }
.hero-details {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 24px;
  color: rgba(255,255,255,0.8); margin: 24px 0 40px; font-size: 0.95rem;
}
.hero-details span { display: flex; align-items: center; gap: 6px; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
  padding: 14px 32px; border-radius: 10px; font-size: 0.95rem;
  font-weight: 600; cursor: pointer; transition: all 0.2s; border: none;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary { background: #fff; color: var(--primary); }
.btn-primary:hover { background: rgba(255,255,255,0.9); transform: translateY(-2px); }
.btn-outline {
  background: transparent; color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.btn-accent { background: var(--primary); color: #fff; }
.btn-accent:hover { background: var(--primary-light); transform: translateY(-2px); }

/* SECTIONS */
.section { padding: 100px 24px; }
.section-alt { background: var(--bg-secondary); }
.section-dark {
  background: linear-gradient(135deg, #7a1a1a 0%, #4a0e0e 50%, #1a1a2e 100%);
  color: #fff;
}
.container { max-width: 1100px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 2.2rem; font-weight: 700; margin-bottom: 12px; }
.section-header .line {
  width: 60px; height: 4px; background: var(--primary);
  margin: 0 auto 16px; border-radius: 2px;
}
.section-dark .section-header .line { background: rgba(255,255,255,0.3); }
.section-header p { color: var(--text-muted); font-size: 1.05rem; }
.section-dark .section-header p { color: rgba(255,255,255,0.7); }

/* CARDS */
.card {
  background: var(--bg); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 32px; transition: all 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(0,0,0,0.12); }
.card-alt { background: var(--bg-secondary); }

/* GRID */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }

/* STATS */
.stat-card { text-align: center; padding: 24px; }
.stat-num { font-size: 2.5rem; font-weight: 900; color: var(--primary); }
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

/* TOPIC CARD */
.topic-card {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 20px; border: 1px solid var(--border);
  border-radius: var(--radius); transition: all 0.2s;
}
.topic-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.topic-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: rgba(122,26,26,0.1); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
  font-size: 1.2rem;
}
.topic-card span { font-size: 0.9rem; font-weight: 500; }

/* TIMELINE */
.timeline-card { text-align: center; padding: 24px; }
.timeline-icon { font-size: 2rem; margin-bottom: 12px; }
.timeline-card h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
.timeline-card .desc { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; }
.timeline-badge {
  display: inline-block; padding: 4px 14px; border-radius: 50px;
  background: rgba(122,26,26,0.1); color: var(--primary);
  font-size: 0.75rem; font-weight: 600;
}

/* SPEAKER CARD */
.speaker-card { text-align: center; padding: 32px; }
.speaker-avatar {
  width: 100px; height: 100px; border-radius: 50%;
  background: rgba(122,26,26,0.1); margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; color: rgba(122,26,26,0.3);
}
.speaker-type {
  display: inline-block; padding: 4px 14px; border-radius: 50px;
  background: var(--primary); color: #fff;
  font-size: 0.7rem; font-weight: 700; margin-bottom: 8px;
}
.speaker-role { font-size: 0.85rem; color: var(--text-muted); }
.speaker-tba { font-size: 0.75rem; color: #aaa; margin-top: 8px; }

/* STEPS */
.step { text-align: center; }
.step-num {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(255,255,255,0.1); border: 2px solid rgba(255,255,255,0.3);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-size: 1.3rem; font-weight: 700;
}
.step h3 { font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 0.85rem; opacity: 0.7; }

/* SPONSOR */
.sponsor-card {
  text-align: center; padding: 32px;
  border: 2px dashed var(--border); border-radius: var(--radius);
}
.sponsor-gold { border-color: #d4a017; }
.sponsor-silver { border-color: #999; }
.sponsor-bronze { border-color: #b87333; }
.sponsor-card h3 { font-weight: 700; margin-bottom: 16px; }

/* LOCATION */
.location-info { display: flex; flex-direction: column; gap: 24px; }
.location-item { display: flex; gap: 16px; align-items: flex-start; }
.location-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: rgba(122,26,26,0.1); display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
  font-size: 1.1rem;
}
.location-item h3 { font-weight: 600; margin-bottom: 2px; }
.location-item p { font-size: 0.9rem; color: var(--text-muted); }
.map-frame {
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow);
}

/* CONTACT */
.contact-card { text-align: center; padding: 28px; }
.contact-icon {
  width: 50px; height: 50px; border-radius: 50%;
  background: rgba(122,26,26,0.1); display: flex;
  align-items: center; justify-content: center;
  margin: 0 auto 12px; font-size: 1.3rem;
}
.contact-label { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 4px; }
.contact-value { font-weight: 600; font-size: 0.9rem; }

/* COMMITTEE */
.member-card { text-align: center; padding: 24px; }
.member-avatar {
  width: 120px;
  height: 120px;
  margin: 0 auto 15px;
  border-radius: 50%;
  overflow: hidden;  
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f0f0f0; 
  border: 3px solid #eee;
}
.member-name { font-weight: 600; margin-bottom: 4px; }
.member-role { font-size: 0.85rem; color: var(--text-muted); }

/* PLACEHOLDER */
.placeholder-section {
  min-height: 400px; display: flex; align-items: center;
  justify-content: center; text-align: center; padding: 100px 24px;
}
.placeholder-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.placeholder-section p { color: var(--text-muted); font-size: 1.05rem; }
.placeholder-icon { font-size: 4rem; margin-bottom: 24px; display: block; }

/* FOOTER */
.footer { border-top: 1px solid var(--border); padding: 48px 24px 24px; }
.footer-container { max-width: 1100px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-bottom: 32px; }
.footer h3 { font-weight: 700; margin-bottom: 12px; font-size: 0.95rem; }
.footer li { margin-bottom: 8px; }
.footer a { font-size: 0.85rem; color: var(--text-muted); transition: color 0.2s; }
.footer a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; text-align: center; }
.footer-bottom p { font-size: 0.85rem; color: var(--text-muted); }
.footer-bottom .small { font-size: 0.75rem; opacity: 0.6; margin-top: 4px; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .grid-4, .grid-5 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .nav-menu {
    display: none; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: var(--bg);
    border-bottom: 1px solid var(--border); padding: 16px;
  }
  .nav-menu.open { display: flex; }
  .dropdown-menu {
    position: static; box-shadow: none; border: none;
    padding-left: 16px; display: none;
  }
  .dropdown.open .dropdown-menu { display: block; }
  .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.2rem; }
  .hero-details { flex-direction: column; gap: 8px; }
}
  .logo-img {
      height: 40px;
      width: auto;
      vertical-align: middle;
      margin-right: 10px;
    }
    .nav-logo {
      display: flex;
      align-items: center;
      text-decoration: none;
    }
    .avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;     
    display: block;
    }
    .support-section {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap; 
    gap: 10px;
    margin-top: 10px;
}

.footer-logos-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mini-footer-logo {
    height: 30px;
    width: auto;
    display: block;
    transition: transform 0.2s ease;
}

.mini-footer-logo:hover {
    transform: scale(1.1);
}

.ampersand {
    font-size: 18px;
    font-weight: bold;
    color: #888;
}

.footer-bottom p {
    margin: 5px 0;
}
.section-white {
      padding-top: 140px;
      padding-bottom: 80px;
      background-color: #ffffff;
    }
    
    .content-box {
      background: #ffffff;
      padding: 40px;
      border-radius: 12px;
      border: 1px solid #eee;
      box-shadow: 0 10px 30px rgba(0,0,0,0.03);
      margin-bottom: 30px;
      text-align: left;
      color: #333;
    }

    .content-box h3 {
      color: #8b0000;
      margin-bottom: 25px;
      font-weight: 700;
      font-size: 1.5rem;
      border-bottom: 2px solid #f8f9fa;
      padding-bottom: 10px;
    }

    .content-box h4 {
      color: #8b0000;
      margin-top: 25px;
      margin-bottom: 15px;
      font-weight: 600;
    }

    .template-container {
      display: flex;
      gap: 20px;
      margin-top: 20px;
      margin-bottom: 30px;
      flex-wrap: wrap;
    }

    .template-card {
      flex: 1;
      min-width: 250px;
      padding: 20px;
      background: #f8f9fa;
      border-radius: 8px;
      border: 1px solid #e9ecef;
      transition: transform 0.2s;
      text-decoration: none;
      color: inherit;
      display: flex;
      align-items: center;
      gap: 15px;
    }

    .template-card:hover {
      transform: translateY(-5px);
      border-color: #8b0000;
    }

    .template-icon {
      font-size: 1.5rem;
      color: #8b0000;
    }

    .template-info h4 {
      margin: 0;
      color: #8b0000;
      font-size: 1.1rem;
    }

    .template-info p {
      margin: 5px 0 0;
      font-size: 0.9rem;
      color: #666;
    }

    .instruction-list {
      margin-top: 15px;
      padding-left: 20px;
    }

    .instruction-list li {
      margin-bottom: 12px;
      line-height: 1.6;
      color: #444;
    }

    .section-header h2 {
      color: #8b0000;
      font-weight: 800;
    }

    .section-header p {
      color: #555;
    }

    .line {
      background: #8b0000 !important;
    }

    .highlight-box {
      border: 2px dashed #8b0000 !important;
      background: #fffafa !important;
    }
    
    .highlight-text {
      color: #8b0000 !important;
    }

    .btn-googleforms {
      display: inline-block;
      padding: 18px 50px;
      font-size: 1.1rem;
      font-weight: 600;
      text-decoration: none;
      border-radius: 50px;
      background-color: #ffffff;
      color: #8b0000 !important;
      border: 2px solid #8b0000;
      transition: all 0.3s ease;
    }

    .btn-googleforms:hover {
      background-color: #8b0000;
      color: #ffffff !important;
    }

    .guideline-table {
      width: 100%;
      max-width: 600px;
      margin: 20px auto;
      border-collapse: collapse;
      border: 1px solid #ddd;
    }
    .guideline-table td {
      border: 1px solid #ddd;
      padding: 10px;
      text-align: center;
    }
    .caption {
      text-align: center;
      font-style: italic;
      font-size: 0.9rem;
      margin-top: 10px;
      margin-bottom: 20px;
      color: #666;
    }
    .equation-box {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #f9f9f9;
      padding: 15px 25px;
      border-radius: 5px;
      margin: 15px 0;
      font-family: "Times New Roman", serif;
      font-style: italic;
    }
    .ref-list {
      list-style: none;
      padding: 0;
    }
    .ref-list li {
      margin-bottom: 10px;
      font-size: 0.9rem;
      text-indent: -20px;
      padding-left: 20px;
    }
    .format-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 10px;
      background: #fffafa;
      padding: 20px;
      border-radius: 8px;
      margin-bottom: 20px;
    }
    .format-item strong {
      color: #8b0000;
    }
:root {
  --bg-color: #ffffff;
  --text-color: #333333;
  --box-bg: #ffffff;
  --box-border: #eeeeee;
  --header-color: #8b0000;
  --nav-bg: #ffffff;
  --footer-bg: #f8f9fa;
}

[data-theme="dark"] {
  --bg-color: #121212;
  --text-color: #e0e0e0;
  --box-bg: #1e1e1e;
  --box-border: #333333;
  --header-color: #ff4d4d;
  --nav-bg: #1a1a1a;
  --footer-bg: #1a1a1a;
}
.faq-section-bg {
      background-color: #f4f7f9;
      padding-bottom: 60px;
    }
    .faq-container {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 30px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      overflow: hidden;
      transition: all 0.3s ease;
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    }
    .faq-item:hover {
      border-color: #cbd5e1;
    }
    .faq-item.active {
      border-color: #8b0000;
    }
    .faq-header {
      padding: 16px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .faq-title {
      display: flex;
      align-items: center;
      gap: 14px;
      font-weight: 600;
      color: #1e293b;
      font-size: 1.05rem;
    }
    .faq-icon {
      background-color: #8b0000;
      color: white;
      border-radius: 50%;
      width: 22px;
      height: 22px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 700;
      flex-shrink: 0;
    }
    .faq-chevron {
      width: 20px;
      height: 20px;
      fill: none;
      stroke: #94a3b8;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-chevron {
      transform: rotate(180deg);
      stroke: #8b0000;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: #ffffff;
    }
    .faq-answer-inner {
      padding: 0 24px 20px 60px;
      color: #64748b;
      font-size: 0.95rem;
      line-height: 1.6;
    }
    .member-social {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 15px;
}

.social-link {
  width: 40px;
  height: 40px;
  background-color: #fdf2f2; 
  color: #8b0000;           
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 18px;
  border: 1px solid rgba(139, 0, 0, 0.1);
}

.social-link:hover {
  background-color: #8b0000;
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(139, 0, 0, 0.2);
}

.member-email {
  display: none; 
}
  .member-social {
      display: flex;
      justify-content: center;
      gap: 10px;
      margin-top: 15px;
    }

    .social-link {
      width: 40px;
      height: 40px;
      background-color: #fdf2f2; 
      color: #8b0000; 
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      transition: all 0.3s ease;
      font-size: 18px;
      border: 1px solid rgba(139, 0, 0, 0.1);
    }

    .social-link:hover {
      background-color: #8b0000;
      color: white;
      transform: translateY(-3px);
      box-shadow: 0 4px 12px rgba(139, 0, 0, 0.2);
    }

  
    .member-email {
      display: none; 
    }
    .countdown-section {
    padding: 40px 0;
    text-align: center;
}

.timers-wrapper {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.timer-box {
    background-color: #ffffff;
    padding: 25px 35px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
    border: 1px solid #f0f0f0;
    min-width: 320px;
}

.timer-box h3 {
    color: #8b0000;
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.3em;
}

.countdown-display {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.time-block {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.time-value {
    font-size: 2em;
    font-weight: bold;
    color: #333333;
    background-color: #f6e8e8;
    padding: 10px 15px;
    border-radius: 8px;
    min-width: 65px;
    display: inline-block;
}

.time-label {
    font-size: 0.85em;
    color: #666666;
    margin-top: 8px;
    font-weight: bold;
    text-transform: uppercase;
}
  body {
      background-color: #f8fafc;
    }

    .contact-main-wrapper {
      max-width: 1100px; 
      margin: 0 auto;
      display: grid;
      grid-template-columns: auto 1.2fr; 
      gap: 50px;
      padding: 40px 20px;
      align-items: start;
    }

    .contact-info-side {
      display: flex;
      flex-direction: column;
      gap: 25px;
      align-items: flex-start;
      text-align: left;
    }

    .contact-info-side h2 {
      font-size: 2rem;
      color: #1a2b4b;
      margin-bottom: 8px;
      font-weight: 800;
    }

    .contact-info-side .description {
      color: #64748b;
      font-size: 1rem;
      line-height: 1.5;
      margin-bottom: 10px;
      max-width: 350px;
    }

    .contact-cards-stack {
      display: flex;
      flex-direction: column;
      gap: 12px; 
      width: 100%;
      max-width: 380px; 
    }

    .contact-card {
      background: white;
      padding: 12px 18px; 
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: flex-start; 
      gap: 15px; 
      text-decoration: none;
      transition: all 0.3s ease;
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
      border-left: 4px solid transparent;
    }

    .contact-card:hover {
      transform: translateX(5px);
      box-shadow: 0 8px 18px rgba(0,0,0,0.06);
      border-left-color: #8b0000;
    }

    .contact-icon {
      font-size: 1.1rem; 
      background: #fff5f5;
      width: 42px; 
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      flex-shrink: 0;
      margin: 0; 
    }

    .card-text-content {
      display: flex;
      flex-direction: column;
      text-align: left;
    }

    .contact-label {
      font-size: 0.65rem; 
      color: #94a3b8;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 2px;
    }

    .contact-value {
      font-size: 0.95rem; 
      color: #1a2b4b;
      font-weight: 700;
    }

    /* Δεξιά Στήλη: Φόρμα */
    .form-container {
      background: white;
      padding: 40px;
      border-radius: 20px;
      box-shadow: 0 15px 35px rgba(0,0,0,0.04);
      border: 1px solid #f1f5f9;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      margin-bottom: 6px;
      font-weight: 700;
      color: #1a2b4b;
      font-size: 0.85rem;
    }

    .required-star {
      color: #8b0000;
      margin-left: 2px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid #f1f5f9;
      border-radius: 10px;
      background: #f8fafc;
      font-family: inherit;
      font-size: 0.95rem;
      transition: all 0.3s;
      box-sizing: border-box;
    }

    .form-control:focus {
      outline: none;
      border-color: #8b0000;
      background: white;
      box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.04);
    }

    .submit-btn {
      background: #8b0000;
      color: white;
      padding: 14px 35px;
      border: none;
      border-radius: 10px;
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      transition: all 0.3s;
      box-shadow: 0 6px 15px rgba(139, 0, 0, 0.15);
    }

    .submit-btn:hover {
      background: #a50000;
      transform: translateY(-2px);
      box-shadow: 0 10px 22px rgba(139, 0, 0, 0.25);
    }

    /* Responsive Design */
    @media (max-width: 968px) {
      .contact-main-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
        padding-top: 100px;
      }
      
      .contact-info-side {
        text-align: left;
        align-items: flex-start;
      }

      .contact-cards-stack {
        max-width: 100%;
        width: 100%;
      }
    }
        .speaker-profile-card {
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.08);
      padding: 30px;
      margin-bottom: 40px;
      border: 1px solid #edf2f7;
    }

    .speaker-header {
      display: flex;
      align-items: center;
      gap: 25px;
      margin-bottom: 25px;
      flex-wrap: wrap;
    }

    .speaker-photo {
      width: 100px;
      height: 100px;
      border-radius: 50%;
      object-fit: cover;
      border: 3px solid #f0f4f8;
    }

    .speaker-info h3 {
      margin: 0;
      font-size: 1.5rem;
      color: #1a202c;
      font-weight: 700;
    }

    .speaker-info p {
      margin: 4px 0;
      color: #718096;
      font-size: 0.95rem;
    }

    .social-links {
      display: flex;
      gap: 12px;
      margin-top: 10px;
    }

    .social-icon {
      width: 32px;
      height: 32px;
      background: #edf2f7;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      color: #4a5568;
      font-size: 14px;
      transition: all 0.2s;
    }

    .social-icon:hover {
      background: #8b0000;
      color: white;
    }

    .bio-section {
      border-top: 1px solid #edf2f7;
      padding-top: 20px;
    }

    .bio-title {
      font-weight: 700;
      color: #8b0000;
      margin-bottom: 12px;
      display: block;
      font-size: 0.9rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .bio-text {
      color: #4a5568;
      line-height: 1.7;
      font-size: 1rem;
    }

    .bio-text a {
      color: #8b0000; 
      text-decoration: none;
    }

    .bio-text a:hover {
      text-decoration: underline;
      color: #b30000; 
    }

    @media (max-width: 600px) {
      .speaker-header {
        flex-direction: column;
        text-align: center;
        justify-content: center;
      }
      .social-links {
        justify-content: center;
      }
    }
        .hero-buttons {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 15px; 
    }

    .hero-top-row {
      display: flex;
      gap: 20px;
      justify-content: center;
      flex-wrap: wrap;
    }

    .btn-records {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px; 
      min-width: 220px;
      background-color: #8b0000;
      color: white;
      border: 2px solid #8b0000;
      text-decoration: none;
      transition: all 0.3s ease;
    }

    .btn-records:hover {
      background-color: #a00000;
      border-color: #a00000;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(139, 0, 0, 0.2);
    }
    .cta-buttons {
      display: flex;
      gap: 15px;
      flex-wrap: wrap;
      margin-top: 25px;
    }
    .cta-btn-primary {
      background: #8b0000;
      color: white;
      padding: 12px 28px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      transition: all 0.3s ease;
      box-shadow: 0 4px 15px rgba(139, 0, 0, 0.2);
    }
    .cta-btn-primary:hover {
      background: #6b0000;
      transform: translateY(-2px);
    }
    .cta-btn-outline {
      background: transparent;
      color: #8b0000;
      border: 2px solid #8b0000;
      padding: 10px 26px; 
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      transition: all 0.3s ease;
    }
    .cta-btn-outline:hover {
      background: #8b0000;
      color: white;
      transform: translateY(-2px);
    }
    
    .page-header-custom {
      text-align: center;
      margin-bottom: 50px;
      padding: 0 20px;
    }

    .page-header-custom h1 {
      font-size: clamp(2.5rem, 5vw, 3.5rem);
      font-weight: 800;
      color: #1a202c;
      margin-bottom: 12px;
      letter-spacing: -0.02em;
    }

    .header-line {
      width: 60px;
      height: 5px;
      background-color: #8b0000;
      margin: 0 auto 25px auto;
      border-radius: 10px;
    }

    .page-header-custom p {
      font-size: 1.25rem;
      color: #4a5568;
      font-weight: 400;
      max-width: 700px;
      margin: 0 auto;
      line-height: 1.6;
    }

    .contact-main-wrapper {
      margin-top: 20px;
    }
    
    .contact-info-side h2 {
        display: none;
    }
    .coming-soon-container {
      max-width: 800px;
      margin: 0 auto;
      text-align: center;
      padding: 60px 20px;
    }
    .status-icon {
      font-size: 5rem;
      margin-bottom: 20px;
      display: block;
    }
    .info-card {
      background: white;
      padding: 30px;
      border-radius: 16px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.05);
      border: 1px solid #e2e8f0;
      margin-top: 40px;
    }
    .btn-home {
      display: inline-block;
      margin-top: 40px;
      padding: 12px 28px;
      background-color: #1e293b;
      color: white !important;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      transition: all 0.3s ease;
    }
    .btn-home:hover {
      background-color: #334155;
      transform: translateY(-2px);
    }
    .prev-hero {
      padding: 140px 48px 60px;
      max-width: 1100px;
      margin: 0 auto;
    }

    .prev-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.7rem;
      font-weight: 600;
      letter-spacing: 2.5px;
      text-transform: uppercase;
      color: #8b0000;
      margin-bottom: 18px;
    }
    .prev-eyebrow::before {
      content: '';
      display: block;
      width: 22px;
      height: 2px;
      background: #8b0000;
      border-radius: 2px;
    }

    .prev-hero h1 {
      font-family: 'Inter', sans-serif;
      font-size: clamp(2.2rem, 5vw, 3.8rem);
      font-weight: 800;
      line-height: 1.08;
      letter-spacing: -1.5px;
      color: #1a202c;
      margin-bottom: 16px;
    }
    .prev-hero h1 span {
      color: #8b0000;
    }

    .prev-hero .subtitle {
      font-family: 'Inter', sans-serif;
      font-size: 1rem;
      color: #718096;
      max-width: 460px;
      line-height: 1.7;
      font-weight: 400;
    }

    .prev-divider {
      max-width: 1100px;
      margin: 48px auto 36px;
      padding: 0 48px;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .prev-divider-line { flex: 1; height: 1px; background: #e2e8f0; }
    .prev-divider-label {
      font-family: 'Inter', sans-serif;
      font-size: 0.68rem;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: #a0aec0;
      font-weight: 500;
    }

    .prev-grid {
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 48px 100px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
    }

    .prev-card {
      position: relative;
      border: 1px solid #e2e8f0;
      border-radius: 16px;
      padding: 36px;
      background: #fff;
      overflow: hidden;
      transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
      text-decoration: none;
      display: block;
    }
    .prev-card:hover {
      border-color: rgba(139,0,0,0.3);
      transform: translateY(-4px);
      box-shadow: 0 12px 36px rgba(139,0,0,0.08);
    }

    .prev-card-accent {
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: #8b0000;
      border-radius: 16px 16px 0 0;
    }

    .prev-card-number {
      font-family: 'Inter', sans-serif;
      font-size: 5.5rem;
      font-weight: 900;
      line-height: 1;
      color: rgba(0,0,0,0.04);
      position: absolute;
      right: 28px;
      top: 50%;
      transform: translateY(-50%);
      letter-spacing: -4px;
      pointer-events: none;
      user-select: none;
    }

    .prev-card-badge {
      display: inline-block;
      font-family: 'Inter', sans-serif;
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: #8b0000;
      background: rgba(139,0,0,0.07);
      border: 1px solid rgba(139,0,0,0.18);
      padding: 4px 12px;
      border-radius: 100px;
      margin-bottom: 20px;
    }

    .prev-card-title {
      font-family: 'Inter', sans-serif;
      font-size: 1.35rem;
      font-weight: 700;
      color: #1a202c;
      margin-bottom: 6px;
      letter-spacing: -0.3px;
    }

    .prev-card-meta {
      font-family: 'Inter', sans-serif;
      font-size: 0.85rem;
      color: #a0aec0;
      margin-bottom: 20px;
      font-weight: 400;
    }

    .prev-card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 7px;
      margin-bottom: 28px;
    }
    .prev-tag {
      font-family: 'Inter', sans-serif;
      font-size: 0.72rem;
      font-weight: 500;
      color: #718096;
      background: #f7fafc;
      border: 1px solid #e2e8f0;
      padding: 4px 11px;
      border-radius: 100px;
    }

    .prev-card-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-family: 'Inter', sans-serif;
      font-size: 0.85rem;
      font-weight: 600;
      color: #fff;
      background: #8b0000;
      padding: 11px 22px;
      border-radius: 8px;
      transition: background 0.2s;
      text-decoration: none;
    }
    .prev-card-btn:hover { background: #a01010; }
    .prev-card-btn .arrow { display: inline-block; transition: transform 0.2s; }
    .prev-card:hover .prev-card-btn .arrow { transform: translateX(3px) translateY(-3px); }

    .prev-card.coming-soon {
      border-style: dashed;
      opacity: 0.45;
      cursor: default;
      background: #fafafa;
    }
    .prev-card.coming-soon:hover {
      transform: none;
      border-color: #e2e8f0;
      box-shadow: none;
    }

    @media (max-width: 768px) {
      .prev-hero { padding: 120px 24px 40px; }
      .prev-divider { padding: 0 24px; }
      .prev-grid { padding: 0 24px 80px; }
    }

.status-badge {
  float: right;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-active {
  background-color: #dcfce7;
  color: #166534;
}

.status-active::before {
  content: '';
  width: 8px;
  height: 8px;
  background-color: #22c55e;
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s infinite;
}

.status-ended {
  background-color: #fee2e2;
  color: #991b1b;
}

@keyframes pulse {
  0% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}
.bio-text p {
    text-align: justify;
    margin-bottom: 1.5em;
}
.bio-text p:last-child {
    margin-bottom: 0;
}

    .schedule-section {
      background-color: #f8fafc;
      padding-top: 120px;
      padding-bottom: 80px;
    }

    .schedule-date-badge {
      display: inline-block;
      background-color: rgba(139, 0, 0, 0.08);
      color: #8b0000;
      padding: 8px 20px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 25px;
      font-family: 'Inter', sans-serif;
      border: 1px solid rgba(139, 0, 0, 0.15);
    }

    .timeline-wrapper {
      max-width: 1000px;
      margin: 20px auto 40px auto;
      position: relative;
      padding-left: 20px;
    }
    .timeline-line {
      position: absolute;
      top: 24px;
      bottom: 24px;
      left: 110px;
      width: 2px;
      background: #e2e8f0;
    }

    .timeline-row {
      display: flex;
      margin-bottom: 25px;
      position: relative;
    }
    .timeline-time-col {
      width: 90px;
      text-align: right;
      padding-right: 25px;
      flex-shrink: 0;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      padding-top: 15px;
    }

    .time-start {
      font-size: 1.15rem;
      font-weight: 700;
      color: #8b0000;
      font-family: 'Inter', sans-serif;
    }

    .time-end {
      font-size: 0.85rem;
      color: #94a3b8;
      font-weight: 500;
      margin-top: 2px;
    }
    .timeline-node {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background-color: #8b0000;
      border: 3px solid #ffffff;
      box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.15);
      position: absolute;
      left: 104px;
      top: 21px;
      z-index: 2;
    }
    .timeline-node.coffee-node {
      background-color: #f59e0b;
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
    }

    .timeline-card-col {
      flex-grow: 1;
      padding-left: 35px;
    }

    .schedule-card {
      background: #ffffff;
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid #edf2f7;
      transition: all 0.3s ease;
    }

    .schedule-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 25px rgba(139, 0, 0, 0.06);
      border-color: rgba(139, 0, 0, 0.2);
    }

    .card-header {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 12px;
    }

    .card-icon-badge {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.15rem;
      flex-shrink: 0;
    }

    .icon-coffee {
      background-color: rgba(245, 158, 11, 0.1);
      color: #d97706;
    }

    .icon-speech {
      background-color: rgba(139, 0, 0, 0.08);
      color: #8b0000;
    }

    .card-title {
      margin: 0;
      font-size: 1.2rem;
      font-weight: 700;
      color: #1e293b;
      font-family: 'Inter', sans-serif;
    }

    .card-details {
      display: flex;
      flex-direction: column;
      gap: 8px;
      padding-left: 56px;
    }

    .detail-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      color: #475569;
    }

    .detail-item i {
      font-size: 0.95rem;
      width: 16px;
      text-align: center;
    }

    .detail-item.speaker i {
      color: #64748b;
    }

    .detail-item.location i {
      color: #8b0000;
    }

    /* Responsiveness */
    @media (max-width: 640px) {
      .timeline-line {
        left: 20px;
      }

      .timeline-row {
        flex-direction: column;
        padding-left: 35px;
      }

      .timeline-time-col {
        width: auto;
        text-align: left;
        padding-right: 0;
        padding-top: 0;
        margin-bottom: 8px;
      }

      .time-start {
        font-size: 1.1rem;
        display: inline-block;
      }

      .time-end {
        font-size: 0.9rem;
        display: inline-block;
        margin-left: 8px;
      }

      .timeline-node {
        left: 14px;
        top: 4px;
      }

      .timeline-card-col {
        padding-left: 0;
      }

      .schedule-card {
        padding: 20px;
      }

      .card-details {
        padding-left: 0;
        margin-top: 15px;
        border-top: 1px dashed #f1f5f9;
        padding-top: 15px;
      }
    }
    .schedule-section {
      background-color: #f8fafc;
      padding-top: 120px;
      padding-bottom: 80px;
    }

    .schedule-date-badge {
      display: inline-block;
      background-color: rgba(139, 0, 0, 0.08);
      color: #8b0000;
      padding: 8px 20px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 25px;
      font-family: 'Inter', sans-serif;
      border: 1px solid rgba(139, 0, 0, 0.15);
    }

    .timeline-wrapper {
      max-width: 1000px;
      margin: 20px auto 40px auto;
      position: relative;
      padding-left: 20px;
    }

    .timeline-line {
      position: absolute;
      top: 24px;
      bottom: 24px;
      left: 110px;
      width: 2px;
      background: #e2e8f0;
    }

    .timeline-row {
      display: flex;
      margin-bottom: 25px;
      position: relative;
    }

    .timeline-time-col {
      width: 90px;
      text-align: right;
      padding-right: 25px;
      flex-shrink: 0;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      padding-top: 15px;
    }

    .time-start {
      font-size: 1.15rem;
      font-weight: 700;
      color: #8b0000;
      font-family: 'Inter', sans-serif;
    }

    .time-end {
      font-size: 0.85rem;
      color: #94a3b8;
      font-weight: 500;
      margin-top: 2px;
    }

    .timeline-node {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background-color: #8b0000;
      border: 3px solid #ffffff;
      box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.15);
      position: absolute;
      left: 104px;
      top: 21px;
      z-index: 2;
    }

    .timeline-node.coffee-node {
      background-color: #f59e0b;
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
    }

    .timeline-card-col {
      flex-grow: 1;
      padding-left: 35px;
    }

    .schedule-card {
      background: #ffffff;
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid #edf2f7;
      transition: all 0.3s ease;
    }

    .schedule-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 25px rgba(139, 0, 0, 0.06);
      border-color: rgba(139, 0, 0, 0.2);
    }

    .card-header {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 12px;
    }

    .card-icon-badge {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      flex-shrink: 0;
      user-select: none;
    }

    .icon-coffee {
      background-color: rgba(245, 158, 11, 0.1);
      border: 1px solid rgba(245, 158, 11, 0.2);
    }

    .icon-speech {
      background-color: rgba(139, 0, 0, 0.08);
      border: 1px solid rgba(139, 0, 0, 0.15);
    }

    .card-title {
      margin: 0;
      font-size: 1.2rem;
      font-weight: 700;
      color: #1e293b;
      font-family: 'Inter', sans-serif;
    }

    .card-details {
      display: flex;
      flex-direction: column;
      gap: 8px;
      padding-left: 56px;
    }

    .detail-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      color: #475569;
    }

    .detail-item i {
      font-size: 0.95rem;
      width: 16px;
      text-align: center;
    }

    .detail-item.speaker i {
      color: #64748b;
    }

    .detail-item.location i {
      color: #8b0000;
    }

    /* Κουμπί Λήψης PDF */
    .download-pdf-btn {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background-color: #8b0000;
      color: #ffffff;
      padding: 14px 32px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: 600;
      font-family: 'Inter', sans-serif;
      font-size: 1rem;
      transition: all 0.3s ease;
      box-shadow: 0 4px 15px rgba(139, 0, 0, 0.2);
      border: 1px solid transparent;
    }

    .download-pdf-btn:hover {
      background-color: #a30000;
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(139, 0, 0, 0.3);
      text-decoration: none;
    }

    .download-pdf-btn i {
      font-size: 1.2rem;
    }

    /* Responsiveness */
    @media (max-width: 640px) {
      .timeline-line {
        left: 20px;
      }

      .timeline-row {
        flex-direction: column;
        padding-left: 35px;
      }

      .timeline-time-col {
        width: auto;
        text-align: left;
        padding-right: 0;
        padding-top: 0;
        margin-bottom: 8px;
      }

      .time-start {
        font-size: 1.1rem;
        display: inline-block;
      }

      .time-end {
        font-size: 0.9rem;
        display: inline-block;
        margin-left: 8px;
      }

      .timeline-node {
        left: 14px;
        top: 4px;
      }

      .timeline-card-col {
        padding-left: 0;
      }

      .schedule-card {
        padding: 20px;
      }

      .card-details {
        padding-left: 0;
        margin-top: 15px;
        border-top: 1px dashed #f1f5f9;
        padding-top: 15px;
      }
    }