/* ============================================================
   IVSO - Input vs. Output | Design System & Styles
   
   THEMING: Update CSS custom properties in :root to change
   the entire color palette, typography, and spacing.
   
   SPLINE: Look for .spline-container elements throughout
   the HTML. Replace the placeholder content with your
   Spline viewer embed code.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ── Theme Tokens ────────────────────────────────────────── */
:root {
  /* Background colors — deep indigo-navy, clearly not black */
  --bg-primary: #080814;
  --bg-secondary: #0e0e1e;
  --bg-card: rgba(15, 15, 30, 0.65);
  --bg-card-hover: rgba(22, 22, 42, 0.7);
  --bg-elevated: #141428;

  /* Accent / Brand colors — mystical purple + warm secondary tones */
  --accent-primary: #8b5cf6;
  --accent-primary-hover: #a78bfa;
  --accent-secondary: #6d28d9;
  --accent-warm: #e8a04c;
  --accent-teal: #2dd4bf;
  --accent-rose: #f472b6;
  --accent-glow: rgba(139, 92, 246, 0.3);
  --accent-glow-strong: rgba(139, 92, 246, 0.5);
  --accent-gradient: linear-gradient(135deg, #7c3aed, #c084fc);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(45, 212, 191, 0.06));

  /* Text colors */
  --text-primary: #eeeef5;
  --text-secondary: #9d9db5;
  --text-tertiary: #6b6b85;
  --text-accent: #c4b5fd;

  /* Border & surface */
  --border-default: rgba(255, 255, 255, 0.05);
  --border-hover: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(139, 92, 246, 0.2);
  --glass-bg: rgba(10, 10, 22, 0.75);
  --glass-blur: 24px;

  /* Typography */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 64px;
  --container-max: 1200px;
  --card-radius: 16px;
  --card-radius-lg: 24px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Hero image — swap this URL to change the hero visual */
  --hero-image: url('assets/hero-placeholder.png');
}

/* ── Reset & Base ────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* ── Ambient Background Orbs (visible, mystical) ─────────── */
.bg-ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-ambient .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 20s ease-in-out infinite;
}

.bg-ambient .orb-1 {
  width: 800px;
  height: 800px;
  background: rgba(139, 92, 246, 0.18);
  top: -15%;
  left: -10%;
  animation-duration: 25s;
}

.bg-ambient .orb-2 {
  width: 700px;
  height: 700px;
  background: rgba(45, 212, 191, 0.12);
  top: 25%;
  right: -15%;
  animation-duration: 30s;
  animation-delay: -5s;
}

.bg-ambient .orb-3 {
  width: 650px;
  height: 650px;
  background: rgba(244, 114, 182, 0.1);
  bottom: 5%;
  left: 15%;
  animation-duration: 22s;
  animation-delay: -10s;
}

.bg-ambient .orb-4 {
  width: 500px;
  height: 500px;
  background: rgba(232, 160, 76, 0.08);
  top: 55%;
  left: -8%;
  animation-duration: 28s;
  animation-delay: -15s;
}

.bg-ambient .orb-5 {
  width: 900px;
  height: 900px;
  background: rgba(109, 40, 217, 0.1);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(120px);
  animation-duration: 35s;
  animation-delay: -8s;
}

@keyframes orbFloat {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  25% {
    transform: translate(40px, -50px) scale(1.08);
  }

  50% {
    transform: translate(-30px, 30px) scale(0.92);
  }

  75% {
    transform: translate(20px, 45px) scale(1.04);
  }
}

/* ── Intro Splash Screen ─────────────────────────────────── */
.intro-splash {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  cursor: pointer;
  transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 1.2s;
  overflow: hidden;
}

#splash-spline-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: auto;
  /* Allow interactions with the 3D scene */
  outline: none;
}

.intro-splash::before {
  content: '';
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background:
    radial-gradient(ellipse at 40% 45%, rgba(139, 92, 246, 0.3) 0%, transparent 55%),
    radial-gradient(ellipse at 65% 55%, rgba(45, 212, 191, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 60%, rgba(244, 114, 182, 0.08) 0%, transparent 50%);
  filter: blur(60px);
  animation: introGlow 6s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes introGlow {
  from {
    transform: scale(1) rotate(0deg);
    opacity: 0.8;
  }

  to {
    transform: scale(1.1) rotate(5deg);
    opacity: 1;
  }
}

.intro-splash-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  text-align: center;
  pointer-events: none;
  /* Let clicks pass down to canvas */
}

.intro-spline-container,
.intro-logo-placeholder,
.intro-hint {
  pointer-events: auto;
  /* Resume pointer events for these overlays */
}

.intro-spline-container {
  width: 400px;
  height: 400px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.intro-logo-placeholder {
  width: 200px;
  height: 200px;
  border-radius: 32px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  color: white;
  box-shadow:
    0 0 60px rgba(139, 92, 246, 0.4),
    0 0 120px rgba(139, 92, 246, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  animation: logoFloat 4s ease-in-out infinite;
  transition: transform 0.6s, box-shadow 0.6s;
}

.intro-logo-placeholder:hover {
  transform: scale(1.05);
  box-shadow:
    0 0 80px rgba(139, 92, 246, 0.5),
    0 0 160px rgba(139, 92, 246, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

@keyframes logoFloat {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

.intro-hint {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  animation: hintPulse 3s ease-in-out infinite;
}

@keyframes hintPulse {

  0%,
  100% {
    opacity: 0.5;
  }

  50% {
    opacity: 1;
  }
}

.intro-splash.dissolving {
  pointer-events: none;
  opacity: 0;
}

.intro-splash.dissolved {
  display: none;
}

.intro-splash.dissolving .intro-logo-placeholder {
  animation: logoDissolveSpin 1.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes logoDissolveSpin {
  0% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
    filter: blur(0);
  }

  50% {
    transform: scale(1.3) rotate(180deg);
    opacity: 0.6;
    filter: blur(4px);
  }

  100% {
    transform: scale(3) rotate(360deg);
    opacity: 0;
    filter: blur(30px);
  }
}

.intro-splash.dissolving #splash-spline-canvas {
  animation: canvasDissolve 1.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes canvasDissolve {
  0% {
    opacity: 1;
    filter: blur(0);
    transform: scale(1);
  }

  100% {
    opacity: 0;
    filter: blur(20px);
    transform: scale(1.1);
  }
}

.intro-splash.dissolving .intro-hint {
  animation: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.intro-particle {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
  pointer-events: none;
  animation: particleBurst 1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes particleBurst {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }

  100% {
    transform: translate(var(--px), var(--py)) scale(0);
    opacity: 0;
  }
}

.intro-splash.dissolved {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.site-main {
  position: relative;
  z-index: 1;
}

.site-main.hidden {
  opacity: 0;
  pointer-events: none;
}

.site-main.revealing {
  animation: siteReveal 1s 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes siteReveal {
  from {
    opacity: 0;
    transform: scale(0.98);
    filter: blur(8px);
  }

  to {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
}

/* Noise texture overlay — visible film grain */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
  mix-blend-mode: overlay;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ── Utilities ───────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-teal);
  background: rgba(45, 212, 191, 0.06);
  border: 1px solid rgba(45, 212, 191, 0.15);
  border-radius: 100px;
  padding: 8px 20px;
  margin-bottom: 20px;
}

.section-label .label-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-glow);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.8;
  font-weight: 300;
}

/* Glow ring decoration */
.glow-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border-accent);
  opacity: 0.4;
  pointer-events: none;
}

/* ── Spline Container (placeholder for 3D embeds) ───────── */
.spline-container {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--card-radius);
}

.spline-scene-canvas {
  width: 100%;
  height: 100%;
  display: block;
  outline: none;
}

.spline-container .spline-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-tertiary);
  font-size: 0.85rem;
  text-align: center;
}

.spline-placeholder-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-gradient-subtle);
  border: 1px dashed var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

/* ── Quote Hero (full-screen text over particles) ─────── */
.quote-hero {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 24px;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.quote-hero.visible {
  opacity: 1;
}

.quote-hero-text {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 3.2rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;
  max-width: 800px;
  color: var(--text-primary);
}

@keyframes quoteReveal {
  from {
    opacity: 0;
    transform: translateY(30px);
    filter: blur(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

.quote-scroll-indicator {
  position: absolute;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: var(--transition-smooth);
  animation: quoteBounce 2.5s infinite;
  pointer-events: auto;
}

.quote-scroll-indicator:hover {
  color: var(--text-primary);
}

.quote-scroll-text {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

@keyframes quoteBounce {
  0% {
    opacity: 1;
    transform: translateY(0);
  }

  20% {
    opacity: 1;
    transform: translateY(0);
  }

  40% {
    opacity: 1;
    transform: translateY(-12px);
  }

  50% {
    opacity: 1;
    transform: translateY(0);
  }

  60% {
    opacity: 1;
    transform: translateY(-6px);
  }

  80% {
    opacity: 1;
    transform: translateY(0);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Navigation ──────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--border-default);
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--border-default);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  color: white;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  position: relative;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 24px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  background: var(--accent-gradient);
  box-shadow: 0 4px 20px var(--accent-glow);
  transition: var(--transition-smooth);
}

.nav-cta:hover {
  box-shadow: 0 6px 30px var(--accent-glow-strong);
  transform: translateY(-1px);
}

/* Mobile hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ── Hero Section ────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 24px 48px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* Mystical mesh-inspired hero glow */
.hero-bg::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  border-radius: 50%;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(139, 92, 246, 0.35) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 30%, rgba(45, 212, 191, 0.15) 0%, transparent 45%),
    radial-gradient(ellipse at 50% 70%, rgba(244, 114, 182, 0.12) 0%, transparent 50%);
  pointer-events: none;
  animation: heroGlow 12s ease-in-out infinite alternate;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 160, 76, 0.1) 0%, transparent 60%);
  pointer-events: none;
  filter: blur(60px);
}

@keyframes heroGlow {
  from {
    transform: translateX(-50%) scale(1) rotate(0deg);
    opacity: 1;
  }

  to {
    transform: translateX(-50%) scale(1.08) rotate(3deg);
    opacity: 0.85;
  }
}

/* Concentric rings */
.hero-rings {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-rings .ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(139, 92, 246, 0.06);
  animation: ringPulse 8s ease-in-out infinite;
}

.hero-rings .ring:nth-child(odd) {
  animation-direction: reverse;
}

@keyframes ringPulse {

  0%,
  100% {
    opacity: 0.4;
  }

  50% {
    opacity: 0.8;
  }
}

.hero-rings .ring:nth-child(1) {
  width: 300px;
  height: 300px;
}

.hero-rings .ring:nth-child(2) {
  width: 500px;
  height: 500px;
}

.hero-rings .ring:nth-child(3) {
  width: 700px;
  height: 700px;
}

.hero-rings .ring:nth-child(4) {
  width: 900px;
  height: 900px;
}

.hero-rings .ring:nth-child(5) {
  width: 1100px;
  height: 1100px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}



.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-accent);
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  padding: 8px 20px;
  margin-bottom: 32px;
  animation: fadeInUp 0.8s ease forwards;
}

.hero-badge .badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 2s infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s 0.1s ease both;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #a78bfa, #c084fc, #e8a04c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% auto;
  animation: shimmerText 6s ease-in-out infinite alternate;
}

@keyframes shimmerText {
  from {
    background-position: 0% center;
  }

  to {
    background-position: 100% center;
  }
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.7;
  animation: fadeInUp 0.8s 0.2s ease both;
}


.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s 0.3s ease both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  color: white;
  background: var(--accent-gradient);
  box-shadow: 0 4px 24px var(--accent-glow);
  transition: var(--transition-smooth);
}

.btn-primary:hover {
  box-shadow: 0 8px 40px var(--accent-glow-strong);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  transition: var(--transition-smooth);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

/* Hero 3D / visual area */
.hero-visual {
  position: relative;
  margin-top: 60px;
  width: 100%;
  max-width: 600px;
  height: 360px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s 0.4s ease both;
}

.hero-visual .spline-container {
  background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
  border: 1px solid var(--border-default);
}

/* Stats bar under hero */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border-default);
  animation: fadeInUp 0.8s 0.5s ease both;
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.hero-stat-label {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin-top: 4px;
}

/* ── Featured Program Section ────────────────────────────── */
.featured-program {
  padding: var(--section-padding) 0;
  position: relative;
}

.featured-header {
  text-align: center;
  margin-bottom: 40px;
}

.featured-showcase {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-default);
  border-radius: var(--card-radius-lg);
  padding: 48px;
  overflow: hidden;
}

.featured-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  opacity: 0.5;
}

.featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.featured-info h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.featured-info p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.featured-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.featured-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.featured-points li .check-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.featured-visual {
  position: relative;
  height: 400px;
}

.featured-visual .spline-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
}

/* ── Programs Grid ───────────────────────────────────────── */
.programs {
  padding: var(--section-padding) 0;
}

.programs-header {
  text-align: center;
  margin-bottom: 40px;
}

.programs-header .section-subtitle {
  margin: 0 auto;
}

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

.program-card {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-default);
  border-radius: var(--card-radius);
  padding: 32px;
  transition: var(--transition-smooth);
  overflow: hidden;
}

.program-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  opacity: 0;
  transition: var(--transition-smooth);
}

.program-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.program-card:hover::before {
  opacity: 0.6;
}

.program-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-gradient-subtle);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.program-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.program-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.program-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-primary);
  transition: var(--transition-fast);
}

.program-card-link:hover {
  color: var(--accent-primary-hover);
  gap: 10px;
}

/* Large featured cards (span 2 columns) */
.program-card.card-large {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  padding: 0;
  overflow: hidden;
}

.program-card.card-large .card-large-content {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.program-card.card-large .card-large-visual {
  position: relative;
  min-height: 280px;
}

.program-card.card-large .card-large-visual .spline-container {
  border-radius: 0;
  background: var(--bg-secondary);
}

/* ── Methodology Section ─────────────────────────────────── */
.methodology {
  padding: var(--section-padding) 0;
  position: relative;
}

.methodology-header {
  text-align: center;
  margin-bottom: 40px;
}

.methodology-header .section-subtitle {
  margin: 0 auto;
}

.methodology-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

/* Connecting line between steps */
.methodology-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 60px;
  right: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), var(--accent-primary), transparent);
  opacity: 0.2;
}

.step-card {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin: 0 auto 20px;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 20px var(--accent-glow);
}

.step-card h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  line-height: 1.6;
}

/* ── Testimonials ────────────────────────────────────────── */
.testimonials {
  padding: var(--section-padding) 0;
}

.testimonials-header {
  text-align: center;
  margin-bottom: 40px;
}

.testimonials-header .section-subtitle {
  margin: 0 auto;
}

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

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--card-radius);
  padding: 32px;
  transition: var(--transition-smooth);
}

.testimonial-card:hover {
  border-color: var(--border-hover);
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  color: #fbbf24;
  font-size: 0.85rem;
}

.testimonial-card blockquote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-gradient-subtle);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent-primary);
}

.testimonial-author-info h5 {
  font-size: 0.9rem;
  font-weight: 600;
}

.testimonial-author-info span {
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

/* ── CTA Section ─────────────────────────────────────────── */
.cta-section {
  padding: var(--section-padding) 0;
}

.cta-box {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--card-radius-lg);
  padding: 80px 48px;
  text-align: center;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.cta-box .section-title {
  position: relative;
  z-index: 2;
}

.cta-box .section-subtitle {
  position: relative;
  z-index: 2;
  margin: 0 auto 32px;
}

.cta-box .hero-actions {
  position: relative;
  z-index: 2;
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border-default);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-tertiary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 300px;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul a {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  transition: var(--transition-fast);
}

.footer-col ul a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border-default);
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-socials a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-socials a:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  color: var(--accent-primary);
}

/* ── Scroll Animations ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ── Keyframes ───────────────────────────────────────────── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes spin-slow {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }

  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .programs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .program-card.card-large {
    grid-column: span 2;
  }

  .methodology-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .methodology-steps::before {
    display: none;
  }

  .featured-grid {
    grid-template-columns: 1fr;
  }

  .featured-visual {
    height: 300px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 48px;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-stats {
    flex-direction: column;
    gap: 24px;
  }

  .programs-grid {
    grid-template-columns: 1fr;
  }

  .program-card.card-large {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }

  .program-card.card-large .card-large-visual {
    min-height: 200px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .methodology-steps {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .cta-box {
    padding: 48px 24px;
  }
}