/**
 * First IAS Institute - Commercial Hubs Design System & AEO Infrastructure
 * Stylesheet: firstias-hub-aeo.css
 * Version: 1.1
 * Author: FIRST IAS INSTITUTE Tech Team
 */

:root {
  /* Brand Color Palette */
  --fias-navy: #0a225f;
  --fias-navy-dark: #061743;
  --fias-navy-light: #163687;
  --fias-navy-gradient: linear-gradient(135deg, #0a225f 0%, #163687 100%);
  --fias-gold: #feb900;
  --fias-gold-hover: #e5a700;
  --fias-gold-light: #fffbeb;
  --fias-gold-gradient: linear-gradient(135deg, #feb900 0%, #f59e0b 100%);
  --fias-emerald: #10b981;
  --fias-emerald-dark: #059669;
  --fias-emerald-bg: #ecfdf5;
  --fias-emerald-border: #a7f3d0;
  --fias-whatsapp: #25D366;
  --fias-whatsapp-hover: #1ebd5a;
  
  /* Slate & Neutral Shades */
  --fias-slate-50: #f8fafc;
  --fias-slate-100: #f1f5f9;
  --fias-slate-200: #e2e8f0;
  --fias-slate-300: #cbd5e1;
  --fias-slate-500: #64748b;
  --fias-slate-600: #475569;
  --fias-slate-700: #334155;
  --fias-slate-800: #1e293b;
  --fias-slate-900: #0f172a;
  --fias-white: #ffffff;
  
  /* Radii & Shadows */
  --fias-radius-sm: 8px;
  --fias-radius-md: 12px;
  --fias-radius-lg: 16px;
  --fias-radius-xl: 20px;
  --fias-radius-full: 9999px;
  --fias-shadow-subtle: 0 4px 14px rgba(10, 34, 95, 0.04);
  --fias-shadow-card: 0 10px 30px -5px rgba(10, 34, 95, 0.08), 0 4px 12px -2px rgba(10, 34, 95, 0.03);
  --fias-shadow-hover: 0 20px 35px -5px rgba(10, 34, 95, 0.14), 0 8px 16px -4px rgba(10, 34, 95, 0.06);
  --fias-transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   1. AEO DIRECT ANSWER BOX (.firstias-aeo-card)
   ========================================================================== */

.firstias-aeo-card {
  position: relative;
  background: var(--fias-white);
  border-radius: var(--fias-radius-lg);
  border: 1px solid var(--fias-slate-200);
  border-left: 6px solid var(--fias-gold);
  box-shadow: var(--fias-shadow-card);
  padding: 28px 32px;
  margin: 32px 0 40px;
  transition: var(--fias-transition);
  overflow: hidden;
}

.firstias-aeo-card:hover {
  box-shadow: var(--fias-shadow-hover);
  border-left-color: #f59e0b;
}

.firstias-aeo-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle at top right, rgba(254, 185, 0, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.firstias-aeo-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--fias-slate-100);
}

.firstias-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--fias-gold);
  color: var(--fias-navy);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: var(--fias-radius-full);
}

.firstias-verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--fias-emerald-bg);
  color: var(--fias-emerald-dark);
  border: 1px solid var(--fias-emerald-border);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--fias-radius-full);
}

.firstias-verified-badge svg,
.firstias-verified-badge i {
  color: var(--fias-emerald);
  font-size: 13px;
}

.firstias-aeo-card h2,
.firstias-aeo-card h3.firstias-aeo-title {
  color: var(--fias-navy);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  font-weight: 800;
  line-height: 1.3;
  margin: 0 0 16px;
}

.firstias-direct-summary {
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--fias-slate-700);
  margin-bottom: 20px;
}

.firstias-direct-summary strong {
  color: var(--fias-navy);
  font-weight: 700;
}

/* Key Takeaway Points */
.firstias-takeaways {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: grid;
  gap: 10px;
}

.firstias-takeaways li {
  position: relative;
  padding-left: 28px;
  font-size: 0.96rem;
  line-height: 1.55;
  color: var(--fias-slate-800);
}

.firstias-takeaways li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 18px;
  height: 18px;
  background-color: var(--fias-emerald);
  mask: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' fill='currentColor' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E") no-repeat center;
  -webkit-mask: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' fill='currentColor' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E") no-repeat center;
}

/* AEO CTA Actions */
.firstias-aeo-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px dashed var(--fias-slate-200);
}

/* Elevated Button Utilities */
.firstias-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  padding: 11px 22px;
  border-radius: var(--fias-radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--fias-transition);
  border: 1px solid transparent;
  line-height: 1.2;
}

.firstias-btn-primary {
  background: var(--fias-navy-gradient);
  color: var(--fias-white) !important;
  box-shadow: 0 4px 12px rgba(10, 34, 95, 0.2);
}

.firstias-btn-primary:hover {
  background: var(--fias-navy-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(10, 34, 95, 0.28);
  color: var(--fias-white) !important;
}

.firstias-btn-gold {
  background: var(--fias-gold-gradient);
  color: var(--fias-navy) !important;
  box-shadow: 0 4px 12px rgba(254, 185, 0, 0.35);
}

.firstias-btn-gold:hover {
  background: var(--fias-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(254, 185, 0, 0.45);
  color: var(--fias-navy) !important;
}

.firstias-btn-call {
  background: var(--fias-white);
  color: var(--fias-navy) !important;
  border-color: var(--fias-navy);
}

.firstias-btn-call:hover {
  background: var(--fias-navy);
  color: var(--fias-white) !important;
  transform: translateY(-2px);
}

.firstias-btn-whatsapp {
  background: var(--fias-whatsapp);
  color: var(--fias-white) !important;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.28);
}

.firstias-btn-whatsapp:hover {
  background: var(--fias-whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(37, 211, 102, 0.38);
  color: var(--fias-white) !important;
}

/* ==========================================================================
   2. RESPONSIVE FACTS GRID (.firstias-facts-grid)
   ========================================================================== */

.firstias-facts-wrapper {
  margin: 36px 0 48px;
}

.firstias-facts-heading {
  text-align: center;
  margin-bottom: 24px;
}

.firstias-facts-heading h3 {
  color: var(--fias-navy);
  font-size: clamp(1.3rem, 2.8vw, 1.85rem);
  font-weight: 800;
  margin: 0 0 8px;
}

.firstias-facts-heading p {
  color: var(--fias-slate-600);
  font-size: 15px;
  max-width: 650px;
  margin: 0 auto;
}

.firstias-facts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.firstias-fact-tile {
  background: var(--fias-white);
  border: 1px solid var(--fias-slate-200);
  border-radius: var(--fias-radius-md);
  padding: 22px 20px;
  box-shadow: var(--fias-shadow-subtle);
  transition: var(--fias-transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.firstias-fact-tile:hover {
  transform: translateY(-4px);
  box-shadow: var(--fias-shadow-card);
  border-color: rgba(10, 34, 95, 0.2);
}

.firstias-fact-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--fias-radius-sm);
  background: var(--fias-slate-100);
  color: var(--fias-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
  transition: var(--fias-transition);
}

.firstias-fact-tile:hover .firstias-fact-icon-wrap {
  background: var(--fias-gold);
  color: var(--fias-navy);
  transform: scale(1.06);
}

.firstias-fact-label {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fias-slate-500);
  margin-bottom: 6px;
}

.firstias-fact-value {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--fias-navy);
  line-height: 1.25;
  margin-bottom: 6px;
}

.firstias-fact-desc {
  font-size: 13px;
  color: var(--fias-slate-600);
  line-height: 1.5;
  margin: 0;
}

/* ==========================================================================
   3. VERIFIED TWO-CENTRE STRIP (.firstias-campus-strip)
   ========================================================================== */

.firstias-campus-strip {
  background: linear-gradient(135deg, #071743 0%, #0a225f 60%, #163687 100%);
  color: var(--fias-white);
  border-radius: var(--fias-radius-lg);
  padding: 26px 28px;
  margin: 36px 0;
  box-shadow: var(--fias-shadow-card);
  border: 1px solid rgba(254, 185, 0, 0.2);
}

.firstias-campus-strip-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.firstias-campus-strip-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--fias-white);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.firstias-campus-strip-title span {
  color: var(--fias-gold);
}

.firstias-campus-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.firstias-campus-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--fias-radius-md);
  padding: 18px 20px;
  backdrop-filter: blur(8px);
}

.firstias-campus-card h4 {
  color: var(--fias-gold);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.firstias-campus-card p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 13.5px;
  line-height: 1.55;
  margin: 0 0 10px;
}

.firstias-campus-card .firstias-metro-tag {
  display: inline-block;
  background: rgba(254, 185, 0, 0.16);
  color: #ffdb6e;
  border: 1px solid rgba(254, 185, 0, 0.3);
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
}

.firstias-online-footnote {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  gap: 8px;
}

.firstias-online-footnote strong {
  color: var(--fias-gold);
}

/* ==========================================================================
   4. COURSE COMPARISON MATRIX (.firstias-matrix-wrapper)
   ========================================================================== */

.firstias-matrix-section {
  margin: 44px 0 52px;
}

.firstias-matrix-header {
  text-align: center;
  margin-bottom: 24px;
}

.firstias-matrix-header h3 {
  color: var(--fias-navy);
  font-size: clamp(1.3rem, 2.8vw, 1.85rem);
  font-weight: 800;
  margin: 0 0 8px;
}

.firstias-matrix-header p {
  color: var(--fias-slate-600);
  font-size: 15px;
  max-width: 650px;
  margin: 0 auto;
}

.firstias-matrix-wrapper {
  background: var(--fias-white);
  border-radius: var(--fias-radius-lg);
  border: 1px solid var(--fias-slate-200);
  box-shadow: var(--fias-shadow-card);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.firstias-matrix-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

.firstias-matrix-table thead th {
  background: var(--fias-navy);
  color: var(--fias-white);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 16px 18px;
  border: none;
  white-space: nowrap;
}

.firstias-matrix-table thead th:first-child {
  border-top-left-radius: var(--fias-radius-lg);
}

.firstias-matrix-table thead th:last-child {
  border-top-right-radius: var(--fias-radius-lg);
  text-align: right;
}

.firstias-matrix-table tbody tr {
  border-bottom: 1px solid var(--fias-slate-200);
  transition: background 0.15s ease;
}

.firstias-matrix-table tbody tr:last-child {
  border-bottom: none;
}

.firstias-matrix-table tbody tr:hover {
  background: var(--fias-slate-50);
}

.firstias-matrix-table tbody tr.firstias-highlight-row {
  background: #fffdf5;
  border-left: 4px solid var(--fias-gold);
}

.firstias-matrix-table td {
  padding: 16px 18px;
  vertical-align: middle;
  color: var(--fias-slate-800);
}

.firstias-program-cell strong {
  display: block;
  font-size: 15px;
  color: var(--fias-navy);
  margin-bottom: 3px;
}

.firstias-program-cell span {
  font-size: 12.5px;
  color: var(--fias-slate-500);
}

.firstias-badge-cap {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--fias-emerald-bg);
  color: var(--fias-emerald-dark);
  border: 1px solid var(--fias-emerald-border);
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--fias-radius-sm);
  white-space: nowrap;
}

.firstias-fee-cell {
  white-space: nowrap;
}

.firstias-fee-mrp {
  text-decoration: line-through;
  color: var(--fias-slate-500);
  font-size: 12px;
  margin-right: 4px;
}

.firstias-fee-net {
  font-size: 16px;
  font-weight: 800;
  color: var(--fias-navy);
}

.firstias-matrix-table td:last-child {
  text-align: right;
  white-space: nowrap;
}

/* ==========================================================================
   5. MOBILE STICKY CONVERSION BAR (.firstias-mobile-sticky-bar)
   STRICTLY HIDDEN ON DESKTOP!
   ========================================================================== */

.firstias-mobile-sticky-bar,
.kn-mobile-sticky-bar {
  display: none !important;
}

@media (max-width: 768px) {
  /* Offset page body so content is not obscured */
  body.firstias-has-sticky-bar,
  body.has-mobile-sticky-bar {
    padding-bottom: 76px !important;
  }

  .firstias-mobile-sticky-bar,
  .kn-mobile-sticky-bar {
    display: flex !important;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 99999;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(10, 34, 95, 0.12);
    box-shadow: 0 -4px 20px rgba(10, 34, 95, 0.12);
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom, 0px));
    gap: 8px;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
  }

  .firstias-sticky-btn,
  .kn-sticky-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 6px 4px;
    border-radius: var(--fias-radius-sm);
    text-decoration: none !important;
    font-size: 11px;
    font-weight: 700;
    line-height: 1.15;
    text-align: center;
    transition: transform 0.15s ease;
    min-height: 46px;
    min-width: 44px;
    box-sizing: border-box;
  }

  .firstias-sticky-btn:active,
  .kn-sticky-btn:active {
    transform: scale(0.96);
  }

  .firstias-sticky-btn i,
  .firstias-sticky-btn svg,
  .kn-sticky-btn svg {
    font-size: 16px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
  }

  /* Call Action */
  .firstias-sticky-call,
  .kn-sticky-call {
    background: var(--fias-slate-100);
    color: var(--fias-navy) !important;
    border: 1px solid var(--fias-slate-200);
  }

  /* WhatsApp Action */
  .firstias-sticky-whatsapp,
  .kn-sticky-whatsapp {
    background: #25D366;
    color: #ffffff !important;
    box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3);
    border: 1px solid #20ba5a;
  }

  /* Demo / Counseling Action */
  .firstias-sticky-counseling,
  .kn-sticky-inquire {
    background: var(--fias-gold);
    color: var(--fias-navy) !important;
    font-weight: 800;
    box-shadow: 0 2px 8px rgba(254, 185, 0, 0.35);
    border: 1px solid #e5a700;
  }
}

/* ==========================================================================
   6. RESPONSIVE BREAKPOINTS
   ========================================================================== */

@media (max-width: 992px) {
  .firstias-facts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .firstias-campus-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .firstias-aeo-card {
    padding: 20px 18px;
    border-radius: var(--fias-radius-md);
  }
  .firstias-facts-grid {
    grid-template-columns: 1fr;
  }
  .firstias-aeo-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .firstias-aeo-actions .firstias-btn {
    width: 100%;
  }
}