/* ==========================================================================
   AI IMPACT INDIA 2026 — SUB-PAGE COMPONENT STYLES (pages.css)
   Dedicated styles for modernized core sub-pages:
   - Exhibition, Audiences, Schedule, Conference, Visit, Register, About, Contact
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. UNIFIED SUB-PAGE HERO
   -------------------------------------------------------------------------- */
.subpage-hero {
  position: relative;
  padding: 4.5rem 0 3.5rem;
  background: radial-gradient(circle at 50% -15%, rgba(35, 39, 115, 0.42) 0%, rgba(10, 13, 27, 1) 80%);
  border-bottom: 1px solid rgba(42, 45, 125, 0.4);
  overflow: hidden;
}

.subpage-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: 12%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(0, 210, 133, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.subpage-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 6%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(246, 148, 56, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.subpage-hero__grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: clamp(2rem, 3.5vw, 3.5rem);
  align-items: center;
  position: relative;
  z-index: 2;
}

@media (max-width: 991px) {
  .subpage-hero__grid {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }
}

.subpage-hero__content {
  position: relative;
  z-index: 2;
  max-width: 100%;
}

.subpage-hero__visual {
  position: relative;
  z-index: 2;
  width: 100%;
}

.subpage-hero-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(42, 45, 125, 0.55);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5);
  background: var(--ai-surface);
}

.subpage-hero-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.subpage-hero-card:hover img {
  transform: scale(1.02);
}

.subpage-hero-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 14, 30, 0.2) 0%, rgba(11, 14, 30, 0.88) 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  pointer-events: none;
}

.subpage-hero-card__badge-top {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: rgba(22, 29, 61, 0.88);
  border: 1px solid rgba(0, 210, 133, 0.45);
  border-radius: var(--radius-full);
  font-family: var(--font-code);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ai-accent-mint);
  backdrop-filter: blur(10px);
}

.subpage-hero-card__tags-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.subpage-hero-tag {
  font-family: var(--font-code);
  font-size: 0.75rem;
  font-weight: 600;
  color: #FFFFFF;
  background: rgba(22, 29, 61, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
}

/* Info graphic card for pages without photograph (e.g. visit, register, contact) */
.subpage-hero-infocard {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(42, 45, 125, 0.55);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5);
  background: linear-gradient(145deg, rgba(20, 25, 51, 0.95) 0%, rgba(14, 18, 36, 0.98) 100%);
  padding: 1.75rem;
  overflow: hidden;
}

.subpage-hero-infocard::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(0, 210, 133, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-code);
  font-size: 0.8125rem;
  color: var(--ai-text-muted);
  margin-bottom: 1.25rem;
}

.breadcrumb-nav a {
  color: var(--ai-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-nav a:hover {
  color: #FFFFFF;
}

.breadcrumb-nav .separator {
  color: rgba(255, 255, 255, 0.2);
}

.breadcrumb-nav .current {
  color: var(--ai-accent-mint);
  font-weight: 600;
}

.subpage-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.875rem;
  background: rgba(35, 39, 115, 0.6);
  border: 1px solid rgba(0, 210, 133, 0.45);
  border-radius: var(--radius-full);
  font-family: var(--font-code);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ai-accent-mint);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.subpage-hero__title {
  font-size: clamp(2.15rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.subpage-hero__lead {
  font-size: 1.125rem;
  line-height: 1.7;
  color: #CBD5E1;
  margin-bottom: 2rem;
}

.subpage-hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   2. EXPO / EXHIBITION DETAILS
   -------------------------------------------------------------------------- */
.expo-zone-detailed {
  background: #151A38;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  margin-bottom: 2.5rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.expo-zone-detailed:hover {
  border-color: var(--ai-accent-mint);
}

.expo-zone-detailed__img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
}

.expo-zone-detailed__body {
  padding: 2.25rem;
}

.expo-zone-detailed__highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.expo-highlight-item {
  background: rgba(11, 14, 30, 0.6);
  border: 1px solid rgba(42, 45, 125, 0.35);
  border-radius: var(--radius-lg);
  padding: 1.125rem;
}

.expo-highlight-item h5 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.35rem;
}

.expo-highlight-item p {
  font-size: 0.875rem;
  color: #CBD5E1;
  margin: 0;
  line-height: 1.5;
}

.stall-inquiry-banner {
  background: linear-gradient(135deg, rgba(35, 39, 115, 0.8) 0%, rgba(20, 25, 51, 0.95) 100%);
  border: 1px solid rgba(0, 210, 133, 0.35);
  border-radius: var(--radius-2xl);
  padding: 3rem 2.25rem;
  text-align: center;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
}

/* --------------------------------------------------------------------------
   3. AUDIENCES DETAILED SECTIONS
   -------------------------------------------------------------------------- */
.audience-deep-card {
  background: #151A38;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-2xl);
  padding: 2.75rem;
  margin-bottom: 3rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.audience-deep-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.audience-deep-card.accent-mint::before { background: var(--ai-accent-mint); }
.audience-deep-card.accent-orange::before { background: var(--ai-accent-orange); }
.audience-deep-card.accent-blue::before { background: #3B82F6; }

.audience-deep-card h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.audience-takeaways-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.audience-takeaway-box {
  background: rgba(11, 14, 30, 0.6);
  border: 1px solid rgba(42, 45, 125, 0.35);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
}

.audience-takeaway-box h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.audience-takeaway-box h4 svg {
  display: inline-block;
  flex-shrink: 0;
  vertical-align: middle;
}

.audience-takeaway-box p {
  font-size: 0.875rem;
  color: #CBD5E1;
  line-height: 1.6;
  margin: 0;
}

/* --------------------------------------------------------------------------
   4. SCHEDULE & AGENDA TIMELINE
   -------------------------------------------------------------------------- */
.schedule-day-tabs {
  display: flex;
  gap: 0.75rem;
  padding: 0.5rem;
  background: #11152E;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-xl);
  margin-bottom: 2.5rem;
}

.schedule-day-btn {
  flex: 1;
  padding: 1rem 1.5rem;
  border: none;
  background: transparent;
  border-radius: var(--radius-lg);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ai-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
}

.schedule-day-btn.active {
  background: linear-gradient(135deg, #1D2350 0%, #2A2D7D 100%);
  color: #FFFFFF;
  border: 2px solid var(--ai-accent-mint);
  box-shadow: 0 4px 18px rgba(0, 210, 133, 0.2);
}

.timeline-session-item {
  background: #151A38;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-xl);
  padding: 1.85rem;
  margin-bottom: 1.5rem;
  transition: border-color var(--transition-base), transform var(--transition-fast);
}

.timeline-session-item:hover {
  border-color: var(--ai-accent-mint);
  transform: translateX(4px);
}

.timeline-session-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.session-time-pill {
  font-family: var(--font-code);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--ai-accent-mint);
  background: rgba(0, 210, 133, 0.1);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.session-track-pill {
  font-family: var(--font-code);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ai-accent-orange);
  background: rgba(246, 148, 56, 0.1);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   5. REGISTRATION & BOOKING CARDS
   -------------------------------------------------------------------------- */
.reg-category-card {
  background: #151A38;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.reg-category-card:hover {
  transform: translateY(-4px);
  border-color: var(--ai-accent-mint);
}

.reg-category-card.featured {
  border: 2px solid var(--ai-accent-orange);
  box-shadow: 0 10px 30px rgba(246, 148, 56, 0.2);
}

.reg-form-container {
  background: #151A38;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-2xl);
  padding: 2.75rem;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
}

.form-control-ai {
  background: rgba(11, 14, 30, 0.8);
  border: 1px solid rgba(42, 45, 125, 0.5);
  border-radius: var(--radius-md);
  color: #FFFFFF;
  padding: 0.875rem 1.125rem;
  font-size: 0.9375rem;
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control-ai:focus {
  outline: none;
  border-color: var(--ai-accent-mint);
  box-shadow: 0 0 10px rgba(0, 210, 133, 0.25);
  background: rgba(11, 14, 30, 0.95);
  color: #FFFFFF;
}

.form-label-ai {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #CBD5E1;
  margin-bottom: 0.5rem;
}

/* --------------------------------------------------------------------------
   6. CONTACT & INQUIRY DESK
   -------------------------------------------------------------------------- */
.contact-info-card {
  background: #151A38;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-xl);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.contact-info-card h4 {
  font-size: 1.125rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.contact-info-card h4 svg {
  color: var(--ai-accent-mint);
}

.contact-info-card p {
  font-size: 0.9375rem;
  color: #CBD5E1;
  line-height: 1.6;
  margin: 0;
}

/* --------------------------------------------------------------------------
   7. ABOUT PAGE PILLARS
   -------------------------------------------------------------------------- */
.about-mission-card {
  background: #151A38;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-2xl);
  padding: 2.75rem;
  margin-bottom: 2.5rem;
}

.about-pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
  margin-top: 2rem;
}

.about-pillar-box {
  background: rgba(11, 14, 30, 0.6);
  border: 1px solid rgba(42, 45, 125, 0.35);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  transition: border-color var(--transition-base);
}

.about-pillar-box:hover {
  border-color: var(--ai-accent-mint);
}

.about-pillar-box h4 {
  font-size: 1.125rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.65rem;
}

.about-pillar-box p {
  font-size: 0.9375rem;
  color: #CBD5E1;
  line-height: 1.6;
  margin: 0;
}

/* --------------------------------------------------------------------------
   8. HIGH-CONTRAST LOGISTICS & EXECUTIVE CARD (For Plan Visit)
   -------------------------------------------------------------------------- */
.logistics-card-light {
  background: #FFFFFF;
  color: #0F172A;
  border-radius: var(--radius-2xl);
  padding: 2.25rem 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.2);
  margin-bottom: 2.5rem;
}

.logistics-card-light h2,
.logistics-card-light h3,
.logistics-card-light h4 {
  color: #0F172A;
  font-weight: 800;
}

.logistics-card-light p {
  color: #334155;
  line-height: 1.7;
}

.transit-mode-box {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-xl);
  padding: 1.5rem 1.35rem;
  height: 100%;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.transit-mode-box:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.transit-mode-box h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #0F172A;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.transit-mode-box h4 svg {
  display: inline-block;
  flex-shrink: 0;
  vertical-align: middle;
}

.transit-mode-box p {
  font-size: 0.875rem;
  color: #475569;
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.transit-mode-box ul {
  list-style-type: disc !important;
  padding-left: 1.35rem !important;
  margin: 0.75rem 0 0 0 !important;
}

.transit-mode-box li {
  display: list-item !important;
  list-style-type: disc !important;
  font-size: 0.875rem;
  color: #475569;
  line-height: 1.65;
  margin-bottom: 0.45rem;
}

.transit-mode-box li:last-child {
  margin-bottom: 0;
}

.transit-mode-box li::marker {
  color: #1E293B;
  font-size: 0.9em;
}

/* --------------------------------------------------------------------------
   9. ANNOUNCEMENT & NEUTRAL STATUS BANNERS
   -------------------------------------------------------------------------- */
.neutral-status-banner {
  background: rgba(35, 39, 115, 0.4);
  border: 1px solid rgba(0, 210, 133, 0.35);
  border-radius: var(--radius-xl);
  padding: 1.75rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin: 2rem 0;
}

.neutral-status-banner__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: rgba(0, 210, 133, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--ai-accent-mint);
}

.neutral-status-banner__body h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.25rem;
}

.neutral-status-banner__body p {
  font-size: 0.875rem;
  color: #CBD5E1;
  margin: 0;
}

/* --------------------------------------------------------------------------
   10. INTERACTIVE FORM VALIDATION & FEEDBACK
   -------------------------------------------------------------------------- */
.form-feedback-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  display: none;
  margin-top: 1.25rem;
  align-items: center;
  gap: 0.75rem;
}

.form-feedback-alert.success {
  background: rgba(0, 210, 133, 0.15);
  border: 1px solid var(--ai-accent-mint);
  color: var(--ai-accent-mint);
}

.form-feedback-alert.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid #EF4444;
  color: #F87171;
}

.form-feedback-alert.show {
  display: flex;
}

/* --------------------------------------------------------------------------
   11. VISITOR FAQ ACCORDION (Self-contained Vanilla & Bootstrap compatible)
   -------------------------------------------------------------------------- */
.faq-item {
  background: #151A38;
  border: 1px solid rgba(42, 45, 125, 0.45);
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(0, 210, 133, 0.4);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  color: #FFFFFF;
  font-size: 1.05rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--ai-accent-mint);
}

.faq-question .faq-icon {
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  color: var(--ai-accent-mint);
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-question:not(.collapsed) .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: #CBD5E1;
  font-size: 0.9375rem;
  line-height: 1.7;
}