/* ============================================================
   IFTEA 2027 — Shared Stylesheet
   Imported by every page. Page-specific styles go in <style>
   tags within each HTML file.
   ============================================================ */

/* ── 1. Design Tokens ───────────────────────────────────────── */
:root {
  --iac-primary:      #79542e;
  --iac-gold:         #735c00;
  --iac-accent:       #C5A152;
  --iac-bg:           #faf9f6;
  --iac-surface:      #efeeeb;
  --iac-surface-low:  #f4f3f1;
  --iac-on-surface:   #1a1c1a;
  --iac-on-variant:   #4a4743;
  --iac-outline:      #d4c4b7;
  --iac-dark:         #262826;
}

/* ── 2. Base ────────────────────────────────────────────────── */
body {
  font-family: 'Newsreader', serif;
  background-color: var(--iac-bg);
  color: var(--iac-on-surface);
  opacity: 0; /* hidden until i18n applies — prevents untranslated flash */
}

h1, h2, h3, h4, h5, h6,
.font-headline, nav, label {
  font-family: 'Manrope', sans-serif;
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}

/* ── 3. Navbar ──────────────────────────────────────────────── */
.iac-nav {
  background: rgba(250, 249, 246, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(212, 196, 183, 0.2);
  height: 5rem;
  transition: box-shadow 0.3s;
}

.iac-nav.scrolled {
  box-shadow: 0 4px 24px rgba(26, 28, 26, 0.08);
}

.iac-nav .navbar-brand {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--iac-on-surface);
  font-size: 1.4rem;
  text-transform: uppercase;
}

.iac-nav .navbar-brand:hover {
  color: var(--iac-primary);
}

.iac-nav .nav-link {
  font-family: 'Manrope', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #333;
  padding: 0.25rem 0.6rem;
  transition: color 0.3s;
}

.iac-nav .nav-link:hover,
.iac-nav .nav-link:focus {
  color: var(--iac-primary);
}

.iac-nav .nav-link.active {
  color: var(--iac-primary);
  font-weight: 700;
  border-bottom: 2px solid var(--iac-primary);
}

/* ── 3a. Custom Dropdown ────────────────────────────────────── */
.iac-dropdown-parent {
  position: relative;
}

/* caret hint */
.iac-dropdown-toggle::after {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  margin-left: 5px;
  opacity: 0.5;
  transition: transform 0.2s;
}

.iac-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  background: var(--iac-bg);
  border: 1px solid rgba(212, 196, 183, 0.5);
  box-shadow: 0 8px 32px rgba(26, 28, 26, 0.08);
  list-style: none;
  padding: 0.5rem 0;
  margin: 0;
  min-width: 11rem;
  z-index: 1050;
  white-space: nowrap;
    margin-top: -0.5rem;
  padding-top: 0.8rem;
}

.iac-dropdown-menu::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  background: var(--iac-bg);
  border-left: 1px solid rgba(212, 196, 183, 0.5);
  border-top: 1px solid rgba(212, 196, 183, 0.5);
  transform: translateX(-50%) rotate(45deg);
}

.iac-dropdown-menu li a {
  display: block;
  font-family: 'Manrope', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--iac-on-variant);
  text-decoration: none;
  padding: 0.55rem 1.25rem;
  transition: background 0.15s, color 0.15s;
}

.iac-dropdown-menu li a:hover {
  background: var(--iac-surface-low);
  color: var(--iac-primary);
}

/* Show on hover – desktop */
@media (min-width: 992px) {
  .iac-dropdown-parent:hover > .iac-dropdown-menu,
  .iac-dropdown-parent:focus-within > .iac-dropdown-menu {
    display: block;
    animation: dropFade 0.18s ease both;
  }
}

@keyframes dropFade {
  from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Mobile: show inline below parent link */
@media (max-width: 991.98px) {
  .iac-dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid rgba(212, 196, 183, 0.5);
    background: transparent;
    padding: 0 0 0.5rem 1rem;
  }
  .iac-dropdown-menu::before { display: none; }
  .iac-dropdown-toggle::after { display: none; }
  .iac-dropdown-parent.open > .iac-dropdown-menu { display: block; }
  .iac-dropdown-parent .iac-dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .iac-mobile-caret {
    font-size: 1rem;
    transition: transform 0.2s;
  }
  .iac-dropdown-parent.open .iac-mobile-caret { transform: rotate(180deg); }

  .navbar-nav{
    background: var(--iac-surface);
  }
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.lang-btn {
  font-family: 'Manrope', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--iac-on-variant);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 0.2rem 0.5rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  line-height: 1.4;
}

.lang-btn:hover {
  color: var(--iac-primary);
  border-color: rgba(121, 84, 46, 0.3);
}

.lang-btn-active {
  color: var(--iac-primary);
  border-color: rgba(121, 84, 46, 0.4);
  background: rgba(121, 84, 46, 0.06);
}

.lang-divider {
  font-family: 'Manrope', sans-serif;
  font-size: 0.8rem;
  color: var(--iac-outline);
  line-height: 1;
}

/* ── 4. Footer ──────────────────────────────────────────────── */
.iac-footer {
  background-color: var(--iac-surface);
}

.footer-brand {
  font-family: 'Manrope', sans-serif;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 1rem;
  color: var(--iac-primary);
}

.footer-col-title {
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--iac-primary);
  margin-bottom: 0;
}

.footer-link {
  color: #333;
  text-decoration: none;
  font-style: italic;
  font-size: 1.05rem;
  transition: all 0.2s;
  display: inline-block;
}

.footer-link:hover {
  text-decoration: underline;
  text-decoration-color: var(--iac-gold);
  transform: translateX(4px);
  color: #333;
}

/* ── 5. Shared Typography ───────────────────────────────────── */
.kicker {
  font-family: 'Manrope', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--iac-gold);
}

.kicker-accent {
  color: var(--iac-accent);
}

/* ── 6. Shared Buttons ──────────────────────────────────────── */
.btn-iac {
  font-family: 'Manrope', sans-serif;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  padding: 0.9rem 2rem;
  border-radius: 4px;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-iac-primary {
  background: var(--iac-primary);
  color: #fff;
  border: none;
}

.btn-iac-primary:hover  { opacity: 0.9; color: var(--iac-primary); }
.btn-iac-primary:active { transform: scale(0.98); }

.btn-iac-outline {
  background: transparent;
  color: var(--iac-primary);
  border: 1px solid rgba(121, 84, 46, 0.3);
}

.btn-iac-outline:hover {
  background: var(--iac-surface-low);
  color: var(--iac-primary);
}

.btn-iac-dark {
  background: var(--iac-dark);
  color: var(--iac-bg);
  border: none;
  border-radius: 0;
  font-family: 'Manrope', sans-serif;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  padding: 0.85rem 2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: all 0.2s;
}

.btn-iac-dark:hover { background: #000; color: #fff; }

/* ── 7. Shared Cards ────────────────────────────────────────── */
.speaker-card {
  background: var(--iac-bg);
  border: 1px solid rgba(121, 84, 46, 0.15);
  padding: 1.5rem;
  transition: transform 0.5s, box-shadow 0.5s;
  cursor: pointer;
}

.speaker-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}

.speaker-img {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.speaker-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
/*   filter: grayscale(1);
  transform: scale(1.05);
  transition: filter 1s, transform 0.5s; */
}

.speaker-card:hover .speaker-img img {
  filter: grayscale(0);
  transform: scale(1);
}

.speaker-line {
  height: 2px;
  width: 2rem;
  background: var(--iac-gold);
  transition: width 0.5s;
}

.speaker-card:hover .speaker-line { width: 100%; }

/* ── 8. News Badge ──────────────────────────────────────────── */
.news-badge {
  font-family: 'Manrope', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--iac-gold);
  background: var(--iac-surface);
  padding: 0.25rem 0.75rem;
  flex-shrink: 0;
}

/* ── 9. Scroll-to-Top Button ────────────────────────────────── */
#toTopBtn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background: var(--iac-primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity 0.3s, transform 0.3s;
  z-index: 999;
  box-shadow: 0 4px 16px rgba(121, 84, 46, 0.3);
}

#toTopBtn.visible {
  opacity: 1;
  transform: translateY(0);
}

#toTopBtn:hover { opacity: 0.85; }

/* ── 10. Page transition fade-in ────────────────────────────── */
main {
  animation: fadeIn 0.4s ease both;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── 11. Accessibility ──────────────────────────────────────── */

/* Skip navigation link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--iac-primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  z-index: 10000;
  border-radius: 0 0 4px 0;
}
.skip-link:focus {
  top: 0;
  outline: 3px solid #fff;
  outline-offset: 2px;
}

/* Screen-reader only utility */
.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;
}

/* Enhanced focus-visible for all interactive elements */
:focus-visible {
  outline: 3px solid var(--iac-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Ensure buttons and links always show focus */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--iac-primary);
  outline-offset: 3px;
}

/* ── i18n text fade ─────────────────────────────────────────── */
[data-i18n],
[data-i18n-html] {
  transition: opacity 0.08s ease;
}
body.lang-out [data-i18n],
body.lang-out [data-i18n-html] {
  opacity: 0;
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}