/* ═══════════════════════════════════════════
   ICETCSE-2027 | Components CSS
   components.css — reusable UI components
═══════════════════════════════════════════ */

/* ── COUNTDOWN BAR ── */
.countdown-bar {
  background: var(--navy2);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 2rem 0;
}
.countdown-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}
.countdown-label {
  text-align: center;
}
.countdown-label .label-text {
  font-size: 12px;
  color: var(--gray);
  letter-spacing: 2px;
  text-transform: uppercase;
  display: block;
}
.countdown-label .label-sub {
  font-size: 13px;
  color: var(--accent);
  margin-top: 4px;
  display: block;
}
.countdown-boxes {
  display: flex;
  gap: 0.75rem;
}
.cd-box {
  text-align: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 14px 18px;
  min-width: 76px;
}
.cd-num {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
  display: block;
}
.cd-unit {
  font-size: 9px;
  color: var(--gray);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 4px;
  display: block;
}

/* ── COMMITTEE TABS ── */
.tab-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 2rem 0 2.5rem;
}
.tab-btn {
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid rgba(10,22,40,0.15);
  background: transparent;
  color: rgba(10,22,40,0.55);
  transition: all 0.2s ease;
}
.tab-btn:hover { border-color: var(--blue); color: var(--blue); }
.tab-btn.active { background: var(--blue); color: var(--white); border-color: var(--blue); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── TIMELINE (dates) ── */
.timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.timeline-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.timeline-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--teal));
}
.timeline-card:hover {
  border-color: rgba(232,160,32,0.4);
  transform: translateY(-4px);
}
.timeline-card.highlight {
  background: linear-gradient(135deg, rgba(232,160,32,0.1), rgba(26,79,160,0.12));
  border-color: rgba(232,160,32,0.25);
}
.timeline-card .t-icon { font-size: 24px; margin-bottom: 1rem; }
.timeline-card .t-label {
  font-size: 11px;
  color: var(--gray);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  display: block;
}
.timeline-card .t-date {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.25rem;
  display: block;
}
.timeline-card .t-note {
  font-size: 12px;
  color: var(--teal);
}

/* ── TRACK CARDS ── */
.tracks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.track-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
}
.track-card:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(0,180,216,0.3);
  transform: translateY(-4px);
}
.track-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 2px;
  margin-bottom: 0.75rem;
  display: block;
}
.track-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
}
.track-topics { display: flex; flex-direction: column; gap: 7px; }
.track-topics li {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  display: flex;
  align-items: center;
  gap: 8px;
}
.track-topics li::before {
  content: '→';
  color: var(--accent);
  font-size: 11px;
  flex-shrink: 0;
}

/* ── INFO CARD (about page) ── */
.info-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.info-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.info-card h4 { font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 4px; }
.info-card p  { font-size: 13px; color: var(--gray); line-height: 1.55; }

/* ── STAT CARDS ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}
.stat-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--accent);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--blue);
  line-height: 1;
}
.stat-label { font-size: 13px; color: var(--gray); margin-top: 6px; }

/* ── REGISTRATION CARDS ── */
.reg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.reg-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
  position: relative;
}
.reg-card:hover { transform: translateY(-4px); }
.reg-card.featured {
  background: linear-gradient(135deg, rgba(26,79,160,0.25), rgba(0,180,216,0.12));
  border-color: rgba(0,180,216,0.35);
}
.reg-card.featured::before {
  content: 'POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--teal);
  color: var(--navy);
  font-size: 10px;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 100px;
  letter-spacing: 1px;
}
.reg-category { font-size: 11px; color: var(--gray); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 0.4rem; }
.reg-type     { font-size: 14px; font-weight: 600; color: var(--white); margin-bottom: 1.25rem; }
.reg-price    { font-family: var(--font-display); font-size: 2.4rem; font-weight: 700; color: var(--accent); line-height: 1; }
.reg-currency { font-size: 15px; vertical-align: top; margin-top: 8px; display: inline-block; }
.reg-note     { font-size: 12px; color: var(--gray); margin-top: 0.5rem; }
.reg-divider  { border: none; border-top: 1px solid rgba(255,255,255,0.08); margin: 1.25rem 0; }
.reg-detail   { font-size: 12px; color: rgba(255,255,255,0.35); }

/* ── TOURISM SLIDER ── */
.tourism-slider-wrap {
  position: relative;
  overflow: hidden;
  margin-top: 3rem;
}
.tourism-slider-wrap::before,
.tourism-slider-wrap::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 100px;
  z-index: 2;
  pointer-events: none;
}
.tourism-slider-wrap::before { left: 0;  background: linear-gradient(90deg,  var(--navy), transparent); }
.tourism-slider-wrap::after  { right: 0; background: linear-gradient(270deg, var(--navy), transparent); }
.tourism-slides {
  display: flex;
  gap: 1.5rem;
  animation: tourSlide 35s linear infinite;
  width: max-content;
}
.tourism-slides:hover { animation-play-state: paused; }
@keyframes tourSlide {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.tour-card {
  flex-shrink: 0;
  width: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: transform 0.3s ease;
}
.tour-card:hover { transform: scale(1.04); }
.tour-img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4.5rem;
}
.tour-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1.25rem;
  background: linear-gradient(0deg, rgba(10,22,40,0.95) 0%, transparent 100%);
}
.tour-overlay h4 { font-size: 16px; font-weight: 600; color: var(--white); font-family: var(--font-body); }
.tour-overlay p  { font-size: 12px; color: rgba(255,255,255,0.55); margin-top: 3px; }
.tour-dist {
  display: inline-block;
  margin-top: 6px;
  font-size: 11px;
  background: rgba(232,160,32,0.18);
  color: var(--accent);
  padding: 2px 10px;
  border-radius: 100px;
  border: 1px solid rgba(232,160,32,0.25);
}

/* ── SPEAKER CARD ── */
.speaker-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
}
.speaker-card:hover { border-color: rgba(232,160,32,0.3); transform: translateY(-4px); }
.speaker-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1rem;
}
.speaker-card h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.speaker-card .designation { font-size: 13px; color: var(--teal); margin-bottom: 4px; }
.speaker-card .affiliation { font-size: 12px; color: var(--gray); }
.speaker-card .topic {
  margin-top: 1rem;
  font-size: 12px;
  background: rgba(232,160,32,0.1);
  color: var(--accent);
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid rgba(232,160,32,0.15);
}

/* ── STEPS (submission) ── */
.steps { display: flex; flex-direction: column; gap: 1.5rem; }
.step  { display: flex; gap: 1.25rem; align-items: flex-start; }
.step-num {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  flex-shrink: 0;
  color: var(--white);
}
.step-content h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; color: var(--white); }
.step-content p  { font-size: 13px; color: rgba(255,255,255,0.5); line-height: 1.6; }

/* ── INFO BOX ── */
.info-box {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 1.75rem;
}
.info-box h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.info-box ul { display: flex; flex-direction: column; gap: 8px; }
.info-box li {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.info-box li::before { content: '✓'; color: var(--teal); flex-shrink: 0; }

/* ── CONTACT CARDS ── */
.contact-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.contact-card:hover { border-color: rgba(0,180,216,0.25); }
.contact-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.06);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-card h4 { font-size: 13px; font-weight: 600; color: var(--white); margin-bottom: 4px; }
.contact-card p, .contact-card a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  line-height: 1.55;
}
.contact-card a:hover { color: var(--teal); }

/* ── PUBLISHER BADGE ── */
.publisher-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 10px 20px;
  border-radius: 10px;
}
.scopus-tag {
  background: #e8630a;
  color: white;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  letter-spacing: 1px;
}

/* ── FOOTER ── */
#footer {
  background: rgba(0,0,0,0.45);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 2.5rem 0;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-mitk  { height: 42px; width: auto; object-fit: contain; }
.footer-sep   { width: 1px; height: 28px; background: rgba(255,255,255,0.12); }
.footer-elsevier { height: 44px; width: auto; object-fit: contain; opacity: 0.65; filter: brightness(1.2); }
.footer-text  { font-size: 12px; color: var(--gray); line-height: 1.65; }
.footer-text span { color: var(--accent); }
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a { font-size: 13px; color: var(--gray); transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .countdown-inner { gap: 1.5rem; flex-direction: column; }
  .reg-card.featured::before { top: -10px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}