:root {
  --hf-bg: #0D0D0D;
  --hf-surface: rgba(255, 255, 255, 0.05);
  --hf-accent: #ff264c;
  --text-primary: rgba(255, 255, 255, 1.0);
  --text-secondary: rgba(255, 255, 255, 0.6);
  --apple-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --spacing-sm: 10px;
  --spacing-lg: 30px;
}

* {
  box-sizing: border-box;
}

body {
  background-color: var(--hf-bg);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

header {
  padding: 40px 20px;
  text-align: center;
  animation: fadeUp 0.8s ease-out forwards;
  opacity: 0;
  transform: translateY(20px);
}

/* Core Hero Container */
.hero-main {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
  margin-top: 0;
}

/* 
  Massive HookFlow Brand Isolation 
  Applies the dual-color overlapping shadow effect
*/
.brand-text {
  display: block;
  font-size: clamp(4.5rem, 12vw, 9rem);
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.04em;
  
  /* The Multi-Color Overlapping Shadow Effect */
  /* Top-left Teal/Blue vs Bottom-Right Premium Red */
  text-shadow: 
    -8px -8px 40px rgba(0, 191, 255, 0.6),
     8px  8px 40px rgba(255, 38, 76, 0.8);
}

/* Secondary Subtitle Engine */
.hero-subtitle {
  display: block;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  margin-top: var(--spacing-sm);
}

header h2 {
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin: 0 0 20px 0;
}

.hero-text {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 400;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 30px auto;
  line-height: 1.6;
}

.about-section {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
  animation: fadeUp 0.8s ease-out 0.2s forwards;
  opacity: 0;
  transform: translateY(20px);
}

.about-section p {
  font-size: 1.1rem;
  line-height: 1.6;
  font-weight: 400;
  color: var(--text-secondary);
  text-align: center;
}

.pricing-section {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  padding: 40px 20px;
  animation: fadeUp 0.8s ease-out 0.4s forwards;
  opacity: 0;
  transform: translateY(20px);
  position: relative;
  z-index: 1;
}

/* Ambient glow system for glassmorphism refraction */
.ambient-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  background: var(--hf-accent);
  filter: blur(100px);
  opacity: 0.15;
  border-radius: 50%;
  z-index: -1;
  animation: pulseGlow 8s infinite alternate ease-in-out;
}

.glow-1 {
  top: 10%;
  left: 20%;
}

.glow-2 {
  bottom: 10%;
  right: 20%;
  animation-delay: 4s;
}

@keyframes pulseGlow {
  0% { transform: scale(1) translate(0, 0); opacity: 0.1; }
  100% { transform: scale(1.3) translate(30px, -30px); opacity: 0.25; }
}

.pricing-card {
  background: var(--hf-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 30px;
  width: 100%;
  max-width: 320px;
  text-align: center;
  transition: all 0.4s var(--apple-spring);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.pricing-card:hover {
  transform: scale(1.02);
}

.pricing-card.best-value {
  border: 1px solid var(--hf-accent);
}

.pricing-tier {
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.pricing-price {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.pricing-benefits {
  font-size: 0.95rem;
  line-height: 1.4;
  color: var(--text-secondary);
  margin-top: 15px;
}

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--hf-accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 12px;
  white-space: nowrap;
}

.cta-button {
  display: inline-block;
  background-color: var(--hf-accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  padding: 15px 30px;
  border-radius: 30px;
  font-size: 1.1rem;
  transition: all 0.4s var(--apple-spring);
  margin-top: 20px;
}

.cta-button:hover {
  box-shadow: 0 4px 20px rgba(255, 38, 76, 0.4);
  transform: translateY(-2px);
}

.legal-content {
  max-width: 800px;
  margin: 40px auto;
  padding: 40px 20px;
  background: var(--hf-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 24px;
  animation: fadeUp 0.8s ease-out forwards;
}

.legal-content h1 {
  font-weight: 700;
  margin-bottom: 20px;
}

.legal-content h2 {
  font-weight: 600;
  margin-top: 30px;
  margin-bottom: 15px;
}

.legal-content p,
.legal-content ul,
.legal-content li {
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

footer {
  margin-top: auto;
  text-align: center;
  padding: 30px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  margin: 0 10px;
  transition: color 0.4s var(--apple-spring);
}

footer a:hover {
  color: var(--hf-accent);
}

@keyframes fadeUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}