/* ==========================================================================
   Kumizhi Associates - Modern Luminous Emerald & Radiant Gold Design System
   Ultra-Clean, Fresh, Prestigious & High-Contrast Modern Aesthetics
   ========================================================================== */

:root {
  /* Crisp Modern Clean Backgrounds */
  --bg-main: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: rgba(255, 255, 255, 0.96);
  --bg-subtle: #F1F5F9;
  
  /* Royal Emerald (Tamil Nadu Seal & Agriculture Heritage) */
  --emerald-deep: #064E3B;
  --emerald-primary: #059669;
  --emerald-vibrant: #10B981;
  --emerald-light: #ECFDF5;
  --emerald-border: rgba(5, 150, 105, 0.25);

  /* Radiant Sun Gold & Amber Accents */
  --gold-primary: #D97706;
  --gold-vibrant: #F59E0B;
  --gold-light: #FEF3C7;
  --gold-champagne: #FDE68A;
  --gold-border: rgba(217, 119, 6, 0.3);

  /* Deep High-Contrast Typography */
  --text-headline: #0F172A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-light: #94A3B8;

  /* Shadows & Elevated Glass */
  --shadow-subtle: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
  --shadow-card: 0 10px 30px -4px rgba(15, 23, 42, 0.06);
  --shadow-card-hover: 0 20px 45px -8px rgba(5, 150, 105, 0.18), 0 10px 20px -5px rgba(217, 119, 6, 0.12);
  --shadow-btn: 0 8px 24px -4px rgba(217, 119, 6, 0.35);
}

/* Custom Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@600;700;800;900&family=Outfit:wght@300;400;500;600;700;800&family=Mukta+Malar:wght@400;500;600;700;800&display=swap');

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-body);
  overflow-x: hidden;
  line-height: 1.65;
  background-image: 
    radial-gradient(at 0% 0%, rgba(241, 245, 249, 0.8) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(241, 245, 249, 0.8) 0px, transparent 50%);
}

.font-serif-gold {
  font-family: 'Cinzel', Georgia, serif;
  letter-spacing: 0.02em;
}

.font-tamil {
  font-family: 'Mukta Malar', 'Outfit', sans-serif;
}

/* Sticky Fixed Header */
#header-container {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.06);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #F1F5F9;
}

::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--emerald-primary);
}

/* Crisp Modern Cards */
.glass-panel {
  background: var(--bg-surface-elevated);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid #E2E8F0;
  box-shadow: var(--shadow-card);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-panel:hover {
  border-color: var(--emerald-border);
  box-shadow: var(--shadow-card-hover);
}

.glass-gold-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  box-shadow: 0 10px 30px -4px rgba(15, 23, 42, 0.06);
  transition: all 0.3s ease;
}

.glass-gold-card:hover {
  border-color: #CBD5E1;
  box-shadow: 0 20px 40px -8px rgba(15, 23, 42, 0.1);
}

/* Bento Grid Specific Styles */
.bento-card-spotlight {
  background: linear-gradient(135deg, #FFFFFF 0%, #F8FAFC 100%);
  border: 1.5px solid #E2E8F0;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bento-card-spotlight::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #059669, #F59E0B);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.bento-card-spotlight:hover {
  transform: translateY(-5px);
  border-color: #10B981;
  box-shadow: var(--shadow-card-hover);
}

.bento-card-spotlight:hover::before {
  opacity: 1;
}

/* Radiant Emerald & Gold Typography */
.text-gold-gradient {
  background: linear-gradient(135deg, #B45309 0%, #D97706 50%, #F59E0B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-emerald-gradient {
  background: linear-gradient(135deg, #064E3B 0%, #059669 50%, #10B981 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Hero Full-Bleed Cinematic Background Video (Neutral Dark Cinema Overlay) */
.hero-video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  background-color: #0B1120;
}

.hero-video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.75;
  filter: contrast(1.05) brightness(0.95);
}

.hero-overlay-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(15, 23, 42, 0.75) 0%,
    rgba(15, 23, 42, 0.85) 50%,
    rgba(15, 23, 42, 0.98) 100%
  );
  z-index: 1;
  pointer-events: none;
}

/* Vibrant Action Buttons */
.btn-gold {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 50%, #B45309 100%);
  color: #FFFFFF;
  font-weight: 700;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-btn);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-gold:hover {
  background: linear-gradient(135deg, #FBBF24 0%, #F59E0B 50%, #D97706 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -4px rgba(217, 119, 6, 0.5);
  color: #FFFFFF;
}

.btn-emerald {
  background: linear-gradient(135deg, #10B981 0%, #059669 50%, #047857 100%);
  color: #FFFFFF;
  font-weight: 700;
  transition: all 0.3s ease;
  box-shadow: 0 8px 24px -4px rgba(5, 150, 105, 0.35);
}

.btn-emerald:hover {
  background: linear-gradient(135deg, #34D399 0%, #10B981 50%, #059669 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -4px rgba(5, 150, 105, 0.5);
}

.btn-outline-gold {
  background: #FFFFFF;
  border: 1.5px solid #E2E8F0;
  color: #0F172A;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-outline-gold:hover {
  border-color: var(--gold-vibrant);
  background: #FFFBEB;
  color: #B45309;
  transform: translateY(-2px);
  box-shadow: var(--shadow-subtle);
}

/* Category Filter Active Tab */
.filter-tab-active {
  background: linear-gradient(135deg, #059669 0%, #047857 100%) !important;
  color: #FFFFFF !important;
  font-weight: 700 !important;
  border-color: #047857 !important;
  box-shadow: 0 6px 20px -2px rgba(5, 150, 105, 0.35) !important;
}

/* Diagnostic Assistant Active Option */
.diagnostic-option-active {
  background: #ECFDF5 !important;
  border-color: #059669 !important;
  color: #064E3B !important;
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.2) !important;
}

/* Comparison Matrix Styling */
.comparison-table-row {
  transition: background-color 0.2s ease;
}

.comparison-table-row:hover {
  background-color: rgba(241, 245, 249, 0.7);
}

/* Partner Organizations Marquee */
.marquee-container {
  display: flex;
  overflow: hidden;
  user-select: none;
  gap: 2.5rem;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.marquee-content {
  flex-shrink: 0;
  display: flex;
  justify-content: space-around;
  min-width: 100%;
  gap: 2.5rem;
  animation: scroll-marquee 28s linear infinite;
}

@keyframes scroll-marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(calc(-100% - 2.5rem));
  }
}

.marquee-container:hover .marquee-content {
  animation-play-state: paused;
}

/* Modal Backdrop */
.custom-modal-backdrop {
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
}