:root {
  --bg: #ffffff;
  --muted: #6b7280;
  --accent: #05183d;
  --accent-2: #0b76ef;
  --card: #ffffff;
  --shadow: 0 8px 24px rgba(2,6,23,0.08);
  --max-w: 1100px;
  --radius: 12px;
  --header-h: 72px;
  --gutter: 20px;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: #111;
  line-height: 1.55;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 9999;
  backdrop-filter: blur(6px);
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(255,255,255,0.7));
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.site-header.scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 8px 18px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo {
  font-weight: 700;
  text-decoration: none;
  color: #111;
  font-size: 1.05rem;
}

#menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
}

/* ---------- Desktop Nav ---------- */
.site-nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.site-nav a:hover {
  color: #111;
  background: rgba(0,0,0,0.04);
}

.site-nav a.active {
  color: var(--accent);
  background: linear-gradient(90deg, rgba(231,67,108,0.08), rgba(11,118,239,0.02));
}

/* ---------- Dropdown (Past Editions) ---------- */
.dropdown {
  position: relative;
}

.dropbtn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.95rem;
  font-family: inherit;
  font-weight: 600;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
  line-height: normal;
}

.dropbtn:hover {
  color: #111;
  background: rgba(0, 0, 0, 0.04);
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  background-color: #fff;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  z-index: 999;
}

.dropdown-content a {
  color: #111;
  padding: 10px 14px;
  text-decoration: none;
  display: block;
  border-radius: 6px;
  font-size: 0.9rem;
}

.dropdown-content a:hover {
  background-color: rgba(231, 67, 108, 0.1);
  color: var(--accent);
}

.dropdown:hover .dropdown-content {
  display: block;
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: linear-gradient(rgba(10,10,10,0.26), rgba(10,10,10,0.26)), url('Bg.jpg');
  background-size: cover;
  background-position: center;
  color: white;
  text-align: center;
  padding: 60px 20px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: inherit;
  background-size: cover;
  background-position: center;
  filter: blur(3px);
  transform: scale(1.05);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero h1 {
  font-size: clamp(28px, 6vw, 48px);
  margin: 0 0 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.2rem;
  line-height: 1.6;
  margin: 8px 0;
}

.lead {
  font-size: 1.15rem;
  opacity: 0.95;
  margin-bottom: 18px;
}

/* ---------- General Section Styling ---------- */
.section {
  padding: 56px 18px;
}

.section.alt {
  background: linear-gradient(180deg, #fbfbfd, #ffffff);
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
}

h2 {
  font-size: 1.6rem;
  margin: 0 0 12px;
  color: var(--accent);
}

.muted {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- About / Call / Submission / Dates ---------- */
#about p, #call p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: #111;
}

#submission h2, #dates h2 {
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
  
}

#submission h3 {
  font-size: 1.2rem;
  margin-top: 1.4rem;
  margin-bottom: 0.4rem;
  color: #111;
}

#submission p, #dates p {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 0.8rem;
}

.submission-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  word-break: break-all;
}

.submission-link:hover {
  text-decoration: underline;
}

.dates-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
}

.dates-list li {
  background: #fff;
  padding: 10px 14px;
  border-left: 4px solid var(--accent);
  margin-bottom: 8px;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  font-size: 1rem;
}

/* ---------- Organizers ---------- */
.organizer-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 20px;
  margin-top: 24px;
}

.organizer-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--accent);
  flex-shrink: 0;
}

.organizer-info {
  flex: 1;
  min-width: 250px;
}

.organizer-info h3 {
  margin-top: 0;
  font-size: 1.3rem;
  color: var(--accent);
}

.organizer-info p {
  font-size: 1.05rem;
  line-height: 1.7;
  margin: 8px 0 0;
  text-align: justify;
}
/* === Speakers === */
.speaker-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 20px;
  margin-top: 24px;
}

.speaker-photo {
  width: 140px;          /* SAME as organizer-photo */
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--accent);
  flex-shrink: 0;
}

.speaker-info h3 {
  margin: 0;
  font-size: 1.3rem;
}

.speaker-info h3 a {
  color: var(--accent);
  text-decoration: none;
}

.speaker-info h3 a:hover {
  text-decoration: underline;
}

.speaker-info p {
  margin-top: 6px;
  font-size: 1.05rem;
  color: var(--muted);
}

/* Mobile layout */
@media (max-width: 900px) {
  .speaker-card {
    flex-direction: column;
    text-align: center;
  }

  .speaker-photo {
    width: 120px;
    height: 120px;
  }
}
/* ---------- Footer ---------- */
.site-footer {
  padding: 20px 18px;
  background: #f7f7fb;
  border-top: 1px solid rgba(0,0,0,0.04);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

/* ---------- Mobile Styles ---------- */
@media (max-width: 900px) {
  #menu-toggle {
    display: block;
  }

  /* Left-side sliding nav */
  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 250px;
    height: calc(100vh - var(--header-h));
    background: #fff;
    padding: 20px;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 9998;
  }

  .site-nav.open {
    transform: translateX(0);
  }

  .site-nav a,
  .dropbtn {
    width: 100%;
    text-align: left;
    padding: 12px 0;
  }

  .dropdown-content {
    position: static;
    background: transparent;
    box-shadow: none;
    padding-left: 15px;
  }

  .dropdown-content a {
    padding: 8px 0;
  }

  /* Dim background when menu open */
  body.menu-open::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 9997;
  }

  /* Organizer layout fix */
  .organizer-card {
    flex-direction: column;
    text-align: center;
  }

  .organizer-photo {
    width: 120px;
    height: 120px;
  }

  .organizer-info p {
    text-align: left;
  }
}
.program-table-wrapper {
  overflow-x: auto;
  margin-top: 1.5rem;
}

.program-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

.program-table th,
.program-table td {
  border: 1px solid #ddd;
  padding: 12px 14px;
  vertical-align: top;
}

.program-table th {
  background-color: #f5f5f5;
  font-weight: 600;
  text-align: left;
}

.program-table tr:nth-child(even) {
  background-color: #fafafa;
}
/* === Volunteers Section === */
.volunteer-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  margin: 0.75rem 0;
  padding: 1rem;
  border-radius: 0.9rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.volunteer-photo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  flex-shrink: 0;
}

.volunteer-info strong {
  font-size: 1.05rem;
  color: #222;
}

.volunteer-info span {
  font-size: 0.95rem;
  color: var(--muted);
}

/* Mobile friendly */
@media (max-width: 600px) {
  .volunteer-item {
    flex-direction: column;
    text-align: center;
  }
}
.volunteer-list {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
  line-height: 1.8;
  font-size: 1rem;
}

.volunteer-list li {
  background: #fff;
  margin: 0.5rem 0;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.volunteer-list li strong {
  color: #222;
}
/* ---------- Accessibility ---------- */
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
}