body { 
    /* The white gradient overlay ensures text stays readable! */
    background-image: linear-gradient(rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.1)), url('image/7.png'); 
    background-size: cover; 
    background-position: center; 
    background-attachment: fixed; 
    font-family: 'Open Sans', sans-serif; 
    scroll-behavior: smooth;
}

h1, h2, h3, .nav-link, .font-semibold, .font-bold, .font-extrabold { 
    font-family: 'Inter', sans-serif; 
}

.glass-nav {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-link:hover { 
    color: #4682B4; 
}

.glass-card {
    /* Consolidated your glass-card rules here */
    background: rgba(255, 255, 255, 0.2); 
    backdrop-filter: blur(15px); 
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* ===== Reset & Base ===== 
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}
*/
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 27, 45, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
}

.nav-logo span {
  color: var(--gold);
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}



/* ===== Footer ===== */
.footer-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

.footer-content > div {
  min-width: 0;
}

.footer-brand h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.5rem;
  color: #1d1d1f; /* Dark text */
  margin-bottom: 12px;
  font-weight: 700;
}

.footer-brand h3 span {
  color: #4682B4; 
}

.footer-brand p, .footer-contact p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: #3a3a3c;
}

.footer-links h4,
.footer-contact h4 {
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  color: #1d1d1f;
  margin-bottom: 16px;
  font-weight: 700;
}

.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 0.95rem;
  color: #3a3a3c;
  transition: 0.3s ease;
}

.footer-links a:hover, .footer-contact a:hover {
  color: #4682B4;
  padding-left: 4px; /* Subtle hover animation */
}

.footer-bottom {
  border-top: 1px solid rgba(0, 0, 0, 0.1); /* Light subtle border */
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #86868b;
}

/* ===== Sponsor Tiers ===== */
.sponsor-tier-heading {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 220px;
    height: 120px;
    margin: 0 auto 16px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.sponsor-tier-heading span {
    font-family: 'Inter', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.sponsor-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed #d1d5db;
    border-radius: 12px;
    color: #9ca3af;
    font-size: 0.875rem;
    font-style: italic;
}


/* ===== Mobile Navigation ===== */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

#mobile-menu.open {
    max-height: 500px;
    padding-bottom: 1rem;
}

#mobile-menu .mobile-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease;
}

#mobile-menu .mobile-submenu.open {
    max-height: 200px;
}

/* Make footer stack properly on mobile */
@media (max-width: 768px) {
  /* Simpler, less distracting background on mobile */
  body {
    background-image: linear-gradient(rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)), url('image/7.png');
    background-size: cover;
    background-position: center;
    background-attachment: scroll;
  }

  /* Hero title scaling for mobile */
  #home {
    padding: 2rem 15px;
  }

  #home h1 {
    font-size: 1.75rem;
    line-height: 1.3;
    letter-spacing: -0.02em;
  }

  #home .glass-card {
    padding: 1.25rem;
    margin-top: 1.5rem;
  }

  #home .glass-card p {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  #home .mt-12 {
    margin-top: 1.5rem;
  }

  #home .text-lg {
    font-size: 0.85rem;
  }

  .sponsor-tier-heading {
    width: 160px;
    height: 90px;
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* ===== Section Rail ===== */
.section-rail {
    position: fixed;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 40;
    padding: 10px 10px 12px 10px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transition: padding 220ms ease, background 220ms ease;
}

.section-rail ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
}

.section-rail .rail-divider {
    height: 1px;
    width: 26px;
    background: rgba(0, 0, 0, 0.12);
    margin: 2px 0;
}

.section-rail a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    text-decoration: none;
    outline: none;
    color: #4b5563;
    font-family: 'Inter', sans-serif;
    font-size: 0.68rem;
    font-weight: 500;
    line-height: 1.25;
    text-align: center;
    width: 96px;
    transition: color 200ms ease;
}

.section-rail a .dot {
    flex-shrink: 0;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.85);
    border: 2px solid rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
    transition: background 220ms ease, transform 220ms ease, box-shadow 220ms ease;
}

.section-rail a .label {
    display: block;
    word-break: break-word;
}

.section-rail a:hover,
.section-rail a:focus-visible {
    color: #4682B4;
}

.section-rail a:hover .dot,
.section-rail a:focus-visible .dot {
    background: #4682B4;
    transform: scale(1.3);
}

.section-rail a.is-active {
    color: #4682B4;
    font-weight: 600;
}

.section-rail a.is-active .dot {
    background: #4682B4;
    transform: scale(1.45);
    box-shadow: 0 0 0 4px rgba(70, 130, 180, 0.18), 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* Collapsed (dots only) */
.section-rail.collapsed {
    padding: 10px 8px;
}

.section-rail.collapsed a {
    width: 14px;
    gap: 0;
}

.section-rail.collapsed a .label {
    display: none;
}

.section-rail.collapsed .rail-divider {
    width: 14px;
}

/* Toggle button */
.rail-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    margin: 0 auto 10px auto;
    padding: 0;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: #6b7280;
    cursor: pointer;
    transition: background 200ms ease, color 200ms ease;
}

.rail-toggle:hover {
    background: #fff;
    color: #4682B4;
}

.rail-toggle svg {
    width: 12px;
    height: 12px;
    transition: transform 240ms ease;
}

.section-rail.collapsed .rail-toggle svg {
    transform: rotate(180deg);
}

@media (max-width: 767px) {
    .section-rail {
        display: none;
    }
}
/* ===== AILA additions ===== */

/* Person avatar: photo when available, monogram fallback */
.person-avatar {
    width: 9rem;
    height: 9rem;
    margin: 0 auto 1rem auto;
    border-radius: 9999px;
    object-fit: cover;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.person-monogram {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(140deg, #6f9fc6 0%, #4682B4 60%, #3A6F99 100%);
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

/* ===== Agenda / schedule ===== */
.agenda-block {
    border-left: 3px solid rgba(70, 130, 180, 0.35);
    padding-left: 1.25rem;
}

.agenda-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 0 1.5rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.agenda-row:last-child {
    border-bottom: none;
}

.agenda-time {
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    color: #3A6F99;
    white-space: nowrap;
    padding-top: 0.1rem;
}

.agenda-title {
    font-weight: 600;
    color: #1d1d1f;
}

.agenda-desc {
    font-size: 0.925rem;
    color: #4b5563;
    margin-top: 0.25rem;
    line-height: 1.6;
}

/* Nested sub-items inside a themed half-day block */
.agenda-sub {
    margin-top: 0.6rem;
    padding-left: 0.25rem;
}

.agenda-sub .agenda-row {
    padding: 0.5rem 0;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.06);
}

.agenda-sub .agenda-title {
    font-weight: 500;
}

.agenda-tag {
    display: inline-block;
    font-family: 'Inter', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #3A6F99;
    background: rgba(70, 130, 180, 0.12);
    border-radius: 9999px;
    padding: 0.15rem 0.65rem;
    vertical-align: middle;
}

@media (max-width: 640px) {
    .agenda-row {
        grid-template-columns: 1fr;
        gap: 0.15rem;
    }
    .agenda-time {
        font-size: 0.8rem;
    }
    .person-avatar {
        width: 7.5rem;
        height: 7.5rem;
    }
    .person-monogram {
        font-size: 1.6rem;
    }
}

/* Speaker line inside an agenda item */
.agenda-speaker {
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: 0.35rem;
    line-height: 1.55;
    padding-left: 0.75rem;
    border-left: 2px solid rgba(70, 130, 180, 0.35);
}

.agenda-speaker-name {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    color: #1d1d1f;
}

a.agenda-speaker-name:hover {
    color: #4682B4;
}