/* ====================================
   LearnR - Premium Landing Page Styles
   Inspired by Rescale.framer.ai
   ==================================== */

/* CSS Variables */
:root {
  /* Teal - Primary brand */
  --color-primary-50: #f0fdfa;
  --color-primary-100: #ccfbf1;
  --color-primary-200: #99f6e4;
  --color-primary-300: #5eead4;
  --color-primary-400: #2dd4bf;
  --color-primary-500: #14b8a6;
  --color-primary-600: #0d7377;
  --color-primary-700: #0a5c5f;
  --color-primary-800: #074547;

  /* Amber - CTA accent */
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;

  /* Slate - Secondary/Neutrals */
  --color-secondary-400: #94a3b8;
  --color-secondary-600: #64748b;
  --color-secondary-800: #1e293b;

  /* Text - WCAG AA Compliant */
  --color-text-primary: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-text-accent: #0a5c5f;
  --color-background: #fafcfc;
  --color-surface: #ffffff;
  --color-border: rgba(13, 115, 119, 0.1);

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-28: 112px;
  --space-32: 128px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 20px rgba(13, 115, 119, 0.1);
  --shadow-lg: 0 10px 40px rgba(13, 115, 119, 0.15);
  --shadow-glow: 0 0 40px rgba(13, 115, 119, 0.2);

  /* Neomorphism shadows */
  --shadow-neu-light: -6px -6px 14px rgba(255, 255, 255, 0.7);
  --shadow-neu-dark: 6px 6px 14px rgba(13, 115, 119, 0.12);
  --shadow-neu-inset-light: inset -3px -3px 7px rgba(255, 255, 255, 0.5);
  --shadow-neu-inset-dark: inset 3px 3px 7px rgba(13, 115, 119, 0.08);
  --shadow-neu-sm-light: -3px -3px 8px rgba(255, 255, 255, 0.6);
  --shadow-neu-sm-dark: 3px 3px 8px rgba(13, 115, 119, 0.1);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-bg-strong: rgba(255, 255, 255, 0.85);
  --glass-bg-subtle: rgba(255, 255, 255, 0.4);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-border-strong: rgba(255, 255, 255, 0.7);
  --glass-border-glow: rgba(13, 115, 119, 0.15);
  --glass-blur: 16px;
  --glass-blur-strong: 24px;

  /* Neomorphic background */
  --neu-bg: #f0f5f5;
  --neu-bg-light: #f5fafa;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 200ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* Font Families - Adaline Design Language */
  --font-heading:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-body:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono:
    "Fragment Mono", SFMono-Regular, "SF Mono", "JetBrains Mono", ui-monospace,
    Menlo, monospace;

  /* Container */
  --container-max: 1200px;
  --container-padding: 24px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-background);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip Link - Accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary-700);
  color: white;
  font-weight: 600;
  border-radius: var(--radius-md);
  z-index: 9999;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-4);
  outline: none;
}

/* Focus Visible - Accessibility */
:focus-visible {
  outline: 3px solid var(--color-primary-700);
  outline-offset: 2px;
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(10, 92, 95, 0.4);
}

a:focus-visible {
  outline: 2px solid var(--color-primary-700);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: #0f172a;
}

h1 {
  font-size: clamp(2.75rem, 7vw, 5rem);
}
h2 {
  font-size: clamp(2.25rem, 5vw, 4rem);
}
h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

/* Brutalist Emphasis */
.emphasis-brutal {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 0.98;
  color: #0f0f0f;
}

.emphasis-accent {
  color: var(--color-primary-700);
  font-weight: 400;
}

em {
  font-style: normal;
  font-weight: 400;
  color: var(--color-primary-700);
}

strong {
  font-weight: 500;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--duration-fast) ease;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Glass Card - Enhanced Glassmorphism */
.glass-card {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.85),
    rgba(255, 255, 255, 0.65)
  );
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow:
    0 8px 32px rgba(13, 115, 119, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  position: relative;
  transition:
    transform var(--duration-normal) var(--ease-out-quart),
    box-shadow var(--duration-normal) ease,
    border-color var(--duration-normal) ease;
}

/* Gradient border effect */
.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.8),
    rgba(255, 255, 255, 0.2),
    rgba(13, 115, 119, 0.1)
  );
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-normal) ease;
}

.glass-card:hover {
  box-shadow:
    0 12px 40px rgba(13, 115, 119, 0.12),
    0 0 0 1px rgba(13, 115, 119, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  border-color: var(--glass-border-strong);
}

.glass-card:hover::before {
  opacity: 1;
}

/* Neomorphic Card */
.neu-card {
  background: var(--neu-bg);
  border-radius: var(--radius-xl);
  border: none;
  box-shadow: var(--shadow-neu-light), var(--shadow-neu-dark);
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.neu-card:hover {
  box-shadow:
    -8px -8px 18px rgba(255, 255, 255, 0.8),
    8px 8px 18px rgba(13, 115, 119, 0.15);
  transform: translateY(-2px);
}

.neu-card:active {
  box-shadow: var(--shadow-neu-inset-light), var(--shadow-neu-inset-dark);
  transform: translateY(0);
}

/* Glass Card with Glow variant */
.glass-card-glow {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.9),
    rgba(255, 255, 255, 0.7)
  );
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-xl);
  box-shadow:
    0 8px 32px rgba(13, 115, 119, 0.1),
    0 0 60px rgba(13, 115, 119, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
  position: relative;
}

.glass-card-glow:hover {
  box-shadow:
    0 12px 48px rgba(13, 115, 119, 0.15),
    0 0 80px rgba(13, 115, 119, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* ====================================
   Promo Banner
   ==================================== */
.promo-banner {
  position: fixed;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.88)
  );
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-full);
  box-shadow:
    0 8px 32px rgba(13, 115, 119, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  z-index: 1000;
  animation: slideDown 0.6s var(--ease-out-expo) forwards;
}

.promo-badge {
  padding: var(--space-1) var(--space-3);
  background: linear-gradient(
    135deg,
    var(--color-primary-500),
    var(--color-primary-600)
  );
  color: white;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.promo-text {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.promo-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary-600);
  transition: color var(--duration-fast) ease;
}

.promo-link:hover {
  color: var(--color-primary-700);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* ====================================
   Navigation
   ==================================== */
.navbar {
  position: fixed;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - var(--space-12));
  max-width: 900px;
  z-index: 999;
  transition: all var(--duration-normal) ease;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.92),
    rgba(255, 255, 255, 0.85)
  );
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-xl);
  box-shadow:
    0 8px 32px rgba(13, 115, 119, 0.08),
    0 0 0 1px rgba(255, 255, 255, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
  position: relative;
  transition: all var(--duration-normal) ease;
}

/* Navbar gradient border on scroll */
.navbar.scrolled .navbar-inner {
  box-shadow:
    0 12px 40px rgba(13, 115, 119, 0.12),
    0 0 0 1px rgba(13, 115, 119, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.logo-icon svg {
  width: 100%;
  height: 100%;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  position: relative;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  overflow: hidden;
}

.nav-link span {
  display: block;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 6px;
  left: var(--space-3);
  width: 0;
  height: 2px;
  background: var(--color-primary-500);
  transition: width var(--duration-normal) var(--ease-out-expo);
}

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

.nav-link:hover::after {
  width: calc(100% - var(--space-6));
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.btn-nav {
  padding: 14px 28px !important;
  font-size: 14px !important;
  font-weight: 400 !important;
  border-radius: 20px !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--duration-normal) ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu - Enhanced Glass */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.98),
    rgba(250, 252, 252, 0.95)
  );
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) ease;
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: var(--space-6);
}

.mobile-link {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: -0.04em;
  color: var(--color-text-primary);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--duration-normal) ease;
}

.mobile-menu.active .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.active .mobile-link:nth-child(1) {
  transition-delay: 0.1s;
}
.mobile-menu.active .mobile-link:nth-child(2) {
  transition-delay: 0.15s;
}
.mobile-menu.active .mobile-link:nth-child(3) {
  transition-delay: 0.2s;
}
.mobile-menu.active .mobile-link:nth-child(4) {
  transition-delay: 0.25s;
}
.mobile-menu.active .mobile-link:nth-child(5) {
  transition-delay: 0.3s;
}
.mobile-menu.active .mobile-link:nth-child(6) {
  transition-delay: 0.35s;
}

.btn-mobile {
  margin-top: var(--space-6);
}

/* ====================================
   Buttons
   ==================================== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 32px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.btn-text,
.btn-text-hover {
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.btn-text-hover {
  position: absolute;
  transform: translateY(100%);
}

.btn:hover .btn-text {
  transform: translateY(-100%);
}

.btn:hover .btn-text-hover {
  transform: translateY(0);
}

.btn:active {
  transform: scale(0.98);
}

/* Primary Button - Amber CTA with Glow */
.btn-primary {
  background: linear-gradient(
    135deg,
    var(--color-accent),
    var(--color-accent-dark)
  );
  color: white;
  box-shadow:
    0 4px 15px rgba(245, 158, 11, 0.4),
    0 0 30px rgba(245, 158, 11, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  box-shadow:
    0 6px 25px rgba(245, 158, 11, 0.5),
    0 0 50px rgba(245, 158, 11, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

.btn-primary:active {
  box-shadow:
    0 2px 10px rgba(245, 158, 11, 0.3),
    inset 0 2px 4px rgba(0, 0, 0, 0.1);
  transform: translateY(0) scale(0.98);
}

/* Secondary Button - Glassmorphic */
.btn-secondary {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.9),
    rgba(255, 255, 255, 0.7)
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-text-primary);
  border: 1.5px solid rgba(13, 115, 119, 0.2);
  box-shadow:
    0 4px 12px rgba(13, 115, 119, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 1),
    rgba(255, 255, 255, 0.85)
  );
  border-color: var(--color-primary-400);
  box-shadow:
    0 6px 20px rgba(13, 115, 119, 0.1),
    0 0 0 3px rgba(13, 115, 119, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.btn-secondary:active {
  box-shadow: inset 0 2px 4px rgba(13, 115, 119, 0.1);
  transform: scale(0.98);
}

/* CTA Button (Green) with Glow */
.btn-cta {
  background: linear-gradient(
    135deg,
    var(--color-accent),
    var(--color-accent-dark)
  );
  color: white;
  box-shadow:
    0 4px 15px rgba(245, 158, 11, 0.4),
    0 0 30px rgba(245, 158, 11, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-cta:hover {
  box-shadow:
    0 6px 25px rgba(245, 158, 11, 0.5),
    0 0 50px rgba(245, 158, 11, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

.btn-cta:active {
  box-shadow:
    0 2px 10px rgba(245, 158, 11, 0.3),
    inset 0 2px 4px rgba(0, 0, 0, 0.1);
  transform: translateY(0) scale(0.98);
}

/* Large Button */
.btn-lg {
  padding: 20px 40px;
  font-size: 14px;
}

/* ====================================
   Hero Section
   ==================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-24) 0 var(--space-20);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse 80% 50% at 50% -20%,
      rgba(13, 115, 119, 0.15),
      transparent
    ),
    radial-gradient(
      ellipse 60% 40% at 80% 60%,
      rgba(99, 102, 241, 0.1),
      transparent
    ),
    radial-gradient(
      ellipse 50% 30% at 20% 80%,
      rgba(236, 72, 153, 0.08),
      transparent
    );
}

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

.hero-orb-1 {
  width: 600px;
  height: 600px;
  top: -200px;
  right: -200px;
  background: rgba(13, 115, 119, 0.2);
  animation-delay: 0s;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -100px;
  background: rgba(99, 102, 241, 0.15);
  animation-delay: -5s;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  top: 30%;
  left: 60%;
  background: rgba(236, 72, 153, 0.1);
  animation-delay: -10s;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(20px, -20px) scale(1.05);
  }
  50% {
    transform: translate(-10px, 10px) scale(0.95);
  }
  75% {
    transform: translate(-20px, -10px) scale(1.02);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

/* Hero Badge - Neomorphic Glass */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.9),
    rgba(240, 245, 245, 0.95)
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary-600);
  margin-bottom: var(--space-8);
  box-shadow:
    var(--shadow-neu-sm-light),
    var(--shadow-neu-sm-dark),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.badge-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-600);
  animation: pulse 2s ease-in-out infinite;
}

.badge-icon svg {
  width: 16px;
  height: 16px;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Hero Headline */
.hero-headline {
  margin-bottom: var(--space-6);
  font-size: clamp(3rem, 9vw, 5rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 0.98;
}

.headline-line {
  display: block;
}

.headline-accent {
  color: #0f0f0f;
}

.headline-accent em {
  position: relative;
  display: inline-block;
  color: var(--color-primary-700);
  font-style: normal;
  font-weight: 400;
}

.headline-accent em::after {
  content: "";
  position: absolute;
  bottom: 0.05em;
  left: 0;
  right: 0;
  height: 0.12em;
  background: linear-gradient(
    90deg,
    var(--color-primary-500),
    var(--color-primary-700)
  );
  opacity: 0.5;
  border-radius: 2px;
}

/* Hero Subheadline */
.hero-subheadline {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: #4b5563;
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

.hero-subheadline strong {
  color: #0f172a;
  font-weight: 500;
}

/* Hero CTA */
.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

/* Trust Bar */
.hero-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.trust-highlight {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  color: var(--color-primary-600);
}

.trust-text {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}

.trust-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* Floating Cards */
.hero-floating {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.floating-card {
  position: absolute;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.85)
  );
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow:
    0 10px 40px rgba(13, 115, 119, 0.12),
    0 0 60px rgba(13, 115, 119, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  animation: floatCard 6s ease-in-out infinite;
}

.floating-card-1 {
  top: 25%;
  left: 5%;
  animation-delay: 0s;
}

.floating-card-2 {
  top: 35%;
  right: 5%;
  animation-delay: -2s;
}

.floating-card-3 {
  bottom: 25%;
  left: 8%;
  animation-delay: -4s;
}

@keyframes floatCard {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.floating-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
  color: var(--color-primary-600);
}

.floating-icon svg {
  width: 24px;
  height: 24px;
}

.floating-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.floating-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-primary-600);
  display: inline;
}

.floating-suffix {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-primary-400);
}

/* Typing Animation */
.typing-animation {
  font-size: 14px;
  color: var(--color-text-secondary);
  min-width: 150px;
}

.typing-cursor {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* ====================================
   Sections (General)
   ==================================== */
.section {
  padding: var(--space-28) 0;
  position: relative;
}

/* Section background orbs for glassmorphism depth */
.section-orbs {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.section-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
}

.section-orb-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(
    circle,
    rgba(13, 115, 119, 0.15) 0%,
    transparent 70%
  );
  top: -100px;
  right: -100px;
}

.section-orb-2 {
  width: 300px;
  height: 300px;
  background: radial-gradient(
    circle,
    rgba(99, 102, 241, 0.1) 0%,
    transparent 70%
  );
  bottom: -50px;
  left: -50px;
}

.section-orb-3 {
  width: 250px;
  height: 250px;
  background: radial-gradient(
    circle,
    rgba(236, 72, 153, 0.08) 0%,
    transparent 70%
  );
  top: 40%;
  left: 60%;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-20);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.9),
    rgba(240, 245, 245, 0.85)
  );
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-primary-700);
  margin-bottom: var(--space-5);
  box-shadow:
    var(--shadow-neu-sm-light),
    var(--shadow-neu-sm-dark),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.section-title {
  margin-bottom: var(--space-4);
  font-size: clamp(2.75rem, 6vw, 4.75rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  color: #0f0f0f;
}

.section-subtitle {
  font-size: 1.15rem;
  color: #4b5563;
  line-height: 1.7;
  font-weight: 400;
}

/* ====================================
   Problem Section
   ==================================== */
.problem-section {
  background: linear-gradient(
    180deg,
    var(--color-background) 0%,
    rgba(13, 115, 119, 0.03) 100%
  );
}

.story-card {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-10);
  box-shadow:
    0 12px 40px rgba(13, 115, 119, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.story-text {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.8;
}

.story-text strong {
  color: var(--color-text-primary);
}

.story-highlight {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-text-primary);
  margin: var(--space-8) 0;
  padding: var(--space-6);
  background: rgba(13, 115, 119, 0.05);
  border-left: 3px solid var(--color-primary-500);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.story-question {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.8;
}

.story-question em {
  color: var(--color-primary-600);
}

.story-ending {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ====================================
   Agitate Section (Bento Grid)
   ==================================== */
.agitate-section {
  background: var(--color-background);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.bento-card {
  padding: var(--space-8);
  transition:
    transform var(--duration-normal) var(--ease-out-quart),
    box-shadow var(--duration-normal) ease;
}

.bento-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 20px 50px rgba(13, 115, 119, 0.15),
    0 0 0 1px rgba(13, 115, 119, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* Neomorphic icon container */
.bento-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: var(--space-4);
  background: linear-gradient(
    135deg,
    var(--color-primary-500),
    var(--color-primary-700)
  );
  border-radius: 14px;
  color: white;
  box-shadow:
    0 4px 12px rgba(13, 115, 119, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}

.bento-icon svg {
  width: 28px;
  height: 28px;
}

.bento-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.bento-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Bento Grid Layout - Rectangular 3-col grid */
.bento-card-1 {
  grid-column: span 2;
}

/* Cards 2, 3, 4, 5 each span 1 column for proper rectangular layout */
/* Row 1: Card1 (2) + Card2 (1) = 3 */
/* Row 2: Card3 (1) + Card4 (1) + Card5 (1) = 3 */
/* Row 3: Card6 (3) = 3 */

.bento-card-6 {
  grid-column: span 3;
  background: linear-gradient(
    135deg,
    var(--color-primary-600),
    var(--color-primary-700)
  );
  color: white;
  box-shadow:
    0 12px 40px rgba(13, 115, 119, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.bento-card-6:hover {
  box-shadow:
    0 20px 60px rgba(13, 115, 119, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.bento-card-6 .highlight-text {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.bento-card-6 .highlight-text strong {
  color: #fbbf24;
}

.bento-card-6 .highlight-text em {
  color: rgba(255, 255, 255, 0.8);
}

.bento-card-6 .highlight-conclusion {
  font-size: 1.1rem;
  opacity: 0.9;
}

.bento-card-6 .highlight-conclusion strong {
  color: white;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Stat in Bento */
.bento-stat {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--color-primary-600);
}

.stat-suffix {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-primary-400);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}

/* Forgetting Curve */
.forgetting-curve {
  margin-top: var(--space-6);
}

.curve-svg {
  width: 100%;
  height: 60px;
}

.curve-path {
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: drawCurve 2s ease-out forwards;
}

@keyframes drawCurve {
  to {
    stroke-dashoffset: 0;
  }
}

.curve-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* Difficulty Bars */
.difficulty-bars {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.diff-bar {
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  padding: 0 var(--space-3);
  font-size: 12px;
  font-weight: 500;
}

.diff-bar-1 {
  width: 40%;
  background: rgba(34, 197, 94, 0.2);
  color: #16a34a;
}

.diff-bar-2 {
  width: 20%;
  background: rgba(13, 115, 119, 0.2);
  color: var(--color-primary-600);
}

.diff-bar-3 {
  width: 40%;
  background: rgba(239, 68, 68, 0.2);
  color: #dc2626;
}

/* ====================================
   Solution Section
   ==================================== */
.solution-section {
  background: linear-gradient(
    180deg,
    rgba(13, 115, 119, 0.03) 0%,
    var(--color-background) 100%
  );
}

.algorithm-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.algo-card {
  padding: var(--space-6);
  text-align: left;
  transition:
    transform var(--duration-normal) var(--ease-out-quart),
    box-shadow var(--duration-normal) ease;
}

.algo-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 16px 48px rgba(13, 115, 119, 0.12),
    0 0 0 1px rgba(13, 115, 119, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.algo-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.algo-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary-500),
    var(--color-primary-700)
  );
  border-radius: 12px;
  color: white;
  box-shadow:
    0 4px 12px rgba(13, 115, 119, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.algo-icon svg {
  width: 24px;
  height: 24px;
}

.algo-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--color-primary-500);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.algo-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.algo-problem {
  font-size: 14px;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--space-3);
}

.algo-solution {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.solution-proof {
  text-align: center;
}

.proof-text {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.proof-text strong {
  color: var(--color-primary-600);
}

/* ====================================
   Changes Section (Before/After)
   ==================================== */
.changes-section {
  background: var(--color-background);
}

.comparison-container {
  display: flex;
  align-items: stretch;
  gap: var(--space-8);
  max-width: 1000px;
  margin: 0 auto;
}

.comparison-card {
  flex: 1;
  padding: var(--space-10);
  transition:
    transform var(--duration-normal) ease,
    box-shadow var(--duration-normal) ease;
}

.comparison-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 16px 48px rgba(13, 115, 119, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.comparison-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.comparison-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-neu-sm-light), var(--shadow-neu-sm-dark);
}

.comparison-icon svg {
  width: 28px;
  height: 28px;
}

.comparison-before .comparison-icon {
  background: linear-gradient(
    135deg,
    rgba(255, 245, 245, 0.95),
    rgba(255, 240, 240, 0.9)
  );
  color: #dc2626;
}

.comparison-after .comparison-icon {
  background: linear-gradient(
    135deg,
    rgba(240, 255, 245, 0.95),
    rgba(235, 255, 240, 0.9)
  );
  color: #16a34a;
}

.comparison-header h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 500;
}

.comparison-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.comparison-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 15px;
  color: var(--color-text-secondary);
}

.list-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  box-shadow:
    -2px -2px 4px rgba(255, 255, 255, 0.6),
    2px 2px 4px rgba(0, 0, 0, 0.05);
}

.list-icon svg {
  width: 14px;
  height: 14px;
}

.comparison-before .list-icon {
  background: linear-gradient(
    135deg,
    rgba(255, 245, 245, 0.95),
    rgba(255, 235, 235, 0.9)
  );
  color: #dc2626;
}

.list-icon-success {
  background: linear-gradient(
    135deg,
    rgba(240, 255, 245, 0.95),
    rgba(230, 255, 235, 0.9)
  ) !important;
  color: #16a34a !important;
}

.comparison-arrow {
  display: flex;
  align-items: center;
  color: var(--color-primary-400);
}

.comparison-arrow svg {
  width: 32px;
  height: 32px;
}

/* ====================================
   How It Works Section
   ==================================== */
.how-section {
  background: linear-gradient(
    180deg,
    var(--color-background) 0%,
    rgba(13, 115, 119, 0.03) 100%
  );
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.step-card {
  padding: var(--space-8);
  position: relative;
  transition:
    transform var(--duration-normal) var(--ease-out-quart),
    box-shadow var(--duration-normal) ease;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 16px 48px rgba(13, 115, 119, 0.12),
    0 0 0 1px rgba(13, 115, 119, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.step-number {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary-500),
    var(--color-primary-700)
  );
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  color: white;
  box-shadow:
    0 4px 12px rgba(13, 115, 119, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.step-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-primary-500);
}

.step-icon svg {
  width: 100%;
  height: 100%;
}

.step-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.step-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* CTA Bar - Enhanced Glass */
.cta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) var(--space-8);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(255, 255, 255, 0.85)
  );
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow:
    0 8px 32px rgba(13, 115, 119, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.cta-bar-text {
  font-size: 1.1rem;
  color: var(--color-text-primary);
}

/* ====================================
   Proof Section (Stats)
   ==================================== */
.proof-section {
  background: linear-gradient(
    180deg,
    rgba(13, 115, 119, 0.03) 0%,
    var(--color-background) 100%
  );
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.stat-card {
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  transition:
    transform var(--duration-normal) var(--ease-out-quart),
    box-shadow var(--duration-normal) ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 16px 48px rgba(13, 115, 119, 0.12),
    0 0 0 1px rgba(13, 115, 119, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.stat-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 150px;
  height: 150px;
  background: radial-gradient(
    circle,
    rgba(13, 115, 119, 0.1) 0%,
    transparent 70%
  );
  border-radius: 50%;
  transform: translate(30%, -30%);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  position: relative;
}

.stat-comparison {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  position: relative;
}

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

.stat-old-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.stat-old-label {
  font-size: 12px;
  color: var(--color-text-muted);
}

.stat-arrow {
  color: var(--color-primary-400);
  font-size: 1.5rem;
}

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

.stat-new-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--color-primary-600);
}

.stat-new-label {
  font-size: 12px;
  color: var(--color-primary-500);
  font-weight: 500;
}

.stat-single {
  position: relative;
}

.stat-single .stat-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-primary-600);
}

.stat-single .stat-suffix {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-primary-400);
}

.stat-detail {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ====================================
   FAQ Section
   ==================================== */
.faq-section {
  background: var(--color-background);
}

.faq-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 800px;
  margin: 0 auto var(--space-12);
}

.faq-item {
  overflow: hidden;
  transition:
    box-shadow var(--duration-normal) ease,
    transform var(--duration-normal) ease;
}

.faq-item:hover {
  box-shadow:
    0 12px 40px rgba(13, 115, 119, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-8);
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text-primary);
  text-align: left;
  cursor: pointer;
}

.faq-question span {
  flex: 1;
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-primary-500);
  transition: transform var(--duration-normal) ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out-quart);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 var(--space-6) var(--space-5);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-primary-600);
}

.faq-cta {
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.faq-cta p {
  color: var(--color-text-secondary);
}

/* ====================================
   Final CTA Section
   ==================================== */
.final-cta-section {
  position: relative;
  padding: var(--space-32) 0;
  text-align: center;
  overflow: hidden;
}

.final-cta-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--color-primary-50) 0%,
    rgba(13, 115, 119, 0.1) 100%
  );
}

.cta-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}

.cta-orb-1 {
  width: 500px;
  height: 500px;
  top: -200px;
  left: -100px;
  background: rgba(13, 115, 119, 0.3);
}

.cta-orb-2 {
  width: 400px;
  height: 400px;
  bottom: -150px;
  right: -100px;
  background: rgba(99, 102, 241, 0.2);
}

.cta-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at center,
    transparent 0%,
    rgba(255, 255, 255, 0.5) 100%
  );
}

.final-cta-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.final-cta-title {
  margin-bottom: var(--space-6);
}

.final-cta-text {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

.final-cta-highlight {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--space-10);
}

/* Early Access Form */
.early-access-form {
  max-width: 520px;
  margin: 0 auto var(--space-6);
}

.form-row {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.form-row-submit {
  margin-bottom: var(--space-2);
  justify-content: center;
}

.form-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-field-full {
  flex: 1 1 100%;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid rgba(13, 115, 119, 0.15);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 15px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(250, 252, 252, 0.9)
  );
  box-shadow:
    inset 2px 2px 5px rgba(13, 115, 119, 0.06),
    inset -2px -2px 5px rgba(255, 255, 255, 0.8);
  transition: all var(--duration-fast) ease;
}

.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
  cursor: pointer;
}

.form-select:invalid {
  color: var(--color-text-muted);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary-400);
  box-shadow:
    inset 2px 2px 5px rgba(13, 115, 119, 0.08),
    inset -2px -2px 5px rgba(255, 255, 255, 0.9),
    0 0 0 3px rgba(13, 115, 119, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-note {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
  text-align: center;
}

/* Urgency Badge - Glassmorphic */
.urgency-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.9),
    rgba(255, 240, 240, 0.85)
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-full);
  font-size: 14px;
  color: #dc2626;
  box-shadow:
    0 4px 12px rgba(239, 68, 68, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.urgency-dot {
  width: 8px;
  height: 8px;
  background: #dc2626;
  border-radius: 50%;
  animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.7;
  }
}

/* ====================================
   Footer
   ==================================== */
.footer {
  background: white;
  border-top: 1px solid var(--color-border);
}

/* Footer Marquee */
.footer-marquee {
  padding: var(--space-6) 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  animation: marquee 30s linear infinite;
  width: max-content;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.marquee-item {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.marquee-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-400);
}

.marquee-dot svg {
  width: 10px;
  height: 10px;
}

/* Footer Content */
.footer-content {
  padding: var(--space-16) 0 var(--space-8);
}

.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-border);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--space-4);
}

.footer-tagline {
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* Footer Newsletter */
.footer-newsletter h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.footer-newsletter p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.newsletter-form {
  display: flex;
  gap: var(--space-2);
}

.newsletter-input {
  padding: var(--space-3) var(--space-4);
  border: 1px solid rgba(13, 115, 119, 0.12);
  border-radius: var(--radius-md);
  font-size: 14px;
  width: 200px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.95),
    rgba(250, 252, 252, 0.9)
  );
  box-shadow:
    inset 2px 2px 4px rgba(13, 115, 119, 0.05),
    inset -2px -2px 4px rgba(255, 255, 255, 0.7);
  transition: all var(--duration-fast) ease;
}

.newsletter-input:focus {
  outline: none;
  border-color: var(--color-primary-400);
  box-shadow:
    inset 2px 2px 4px rgba(13, 115, 119, 0.07),
    inset -2px -2px 4px rgba(255, 255, 255, 0.8),
    0 0 0 2px rgba(13, 115, 119, 0.08);
}

.newsletter-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary-500),
    var(--color-primary-600)
  );
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow:
    0 4px 12px rgba(13, 115, 119, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: all var(--duration-fast) ease;
}

.newsletter-btn:hover {
  background: linear-gradient(
    135deg,
    var(--color-primary-400),
    var(--color-primary-600)
  );
  box-shadow:
    0 6px 16px rgba(13, 115, 119, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

.newsletter-btn:active {
  box-shadow:
    0 2px 8px rgba(13, 115, 119, 0.2),
    inset 0 2px 3px rgba(0, 0, 0, 0.1);
  transform: translateY(0);
}

.newsletter-btn svg {
  width: 20px;
  height: 20px;
}

/* Footer Links */
.footer-links {
  display: flex;
  gap: var(--space-16);
  margin-bottom: var(--space-12);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) ease;
}

.footer-col a:hover {
  color: var(--color-primary-600);
}

/* Footer Bottom */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.copyright {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.9),
    rgba(250, 252, 252, 0.85)
  );
  box-shadow:
    -2px -2px 5px rgba(255, 255, 255, 0.8),
    2px 2px 5px rgba(13, 115, 119, 0.08);
  transition: all var(--duration-fast) ease;
}

.social-link:hover {
  background: linear-gradient(
    135deg,
    rgba(240, 255, 255, 0.95),
    rgba(235, 250, 250, 0.9)
  );
  color: var(--color-primary-600);
  box-shadow:
    -3px -3px 7px rgba(255, 255, 255, 0.9),
    3px 3px 7px rgba(13, 115, 119, 0.12);
}

.social-link:active {
  box-shadow:
    inset 2px 2px 4px rgba(13, 115, 119, 0.08),
    inset -2px -2px 4px rgba(255, 255, 255, 0.9);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

/* ====================================
   Animations (Scroll-triggered)
   ==================================== */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s var(--ease-out-quart),
    transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-animate].animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Word-by-word text reveal */
[data-word-reveal] .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.5s ease,
    transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  transition-delay: calc(var(--word-index) * 0.04s);
}

[data-word-reveal].words-visible .word {
  opacity: 1;
  transform: translateY(0);
}

/* Highlighted words in reveal */
[data-word-reveal] .word.highlight {
  color: var(--color-primary-600);
  font-weight: 600;
}

/* Section label slide-in */
.section-label {
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.section-header.animate-in .section-label {
  opacity: 1;
  transform: translateX(0);
}

/* Section title slide-up */
.section-title {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.1s;
}

.section-header.animate-in .section-title {
  opacity: 1;
  transform: translateY(0);
}

/* Section subtitle fade */
.section-subtitle {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.section-header.animate-in .section-subtitle {
  opacity: 1;
  transform: translateY(0);
}

/* Comparison cards - slide from sides */
.comparison-before {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.comparison-after {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.15s;
}

.comparison-container.animate-in .comparison-before,
.comparison-container.animate-in .comparison-after {
  opacity: 1;
  transform: translateX(0);
}

.comparison-arrow {
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s;
}

.comparison-container.animate-in .comparison-arrow {
  opacity: 1;
  transform: scale(1);
}

/* Parallax elements */
[data-parallax] {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* Hero floating cards parallax */
.hero-floating {
  transition:
    transform 0.3s ease-out,
    opacity 0.3s ease-out;
  will-change: transform, opacity;
}

/* Text scramble character */
.scramble-char {
  color: var(--color-primary-400);
  opacity: 0.7;
}

/* Staggered animations for grids - Enhanced with spring easing */
.bento-grid .bento-card,
.algorithm-grid .algo-card,
.steps-grid .step-card,
.stats-grid .stat-card,
.faq-grid .faq-item {
  opacity: 0;
  transform: translateY(30px) scale(0.98);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.bento-grid.animate-in .bento-card,
.algorithm-grid.animate-in .algo-card,
.steps-grid.animate-in .step-card,
.stats-grid.animate-in .stat-card,
.faq-grid.animate-in .faq-item {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Tighter stagger delays for premium feel */
.bento-grid.animate-in .bento-card:nth-child(1) {
  transition-delay: 0s;
}
.bento-grid.animate-in .bento-card:nth-child(2) {
  transition-delay: 0.06s;
}
.bento-grid.animate-in .bento-card:nth-child(3) {
  transition-delay: 0.12s;
}
.bento-grid.animate-in .bento-card:nth-child(4) {
  transition-delay: 0.18s;
}
.bento-grid.animate-in .bento-card:nth-child(5) {
  transition-delay: 0.24s;
}
.bento-grid.animate-in .bento-card:nth-child(6) {
  transition-delay: 0.3s;
}

.algorithm-grid.animate-in .algo-card:nth-child(1) {
  transition-delay: 0s;
}
.algorithm-grid.animate-in .algo-card:nth-child(2) {
  transition-delay: 0.08s;
}
.algorithm-grid.animate-in .algo-card:nth-child(3) {
  transition-delay: 0.16s;
}
.algorithm-grid.animate-in .algo-card:nth-child(4) {
  transition-delay: 0.24s;
}

.steps-grid.animate-in .step-card:nth-child(1) {
  transition-delay: 0s;
}
.steps-grid.animate-in .step-card:nth-child(2) {
  transition-delay: 0.06s;
}
.steps-grid.animate-in .step-card:nth-child(3) {
  transition-delay: 0.12s;
}
.steps-grid.animate-in .step-card:nth-child(4) {
  transition-delay: 0.18s;
}
.steps-grid.animate-in .step-card:nth-child(5) {
  transition-delay: 0.24s;
}
.steps-grid.animate-in .step-card:nth-child(6) {
  transition-delay: 0.3s;
}

.stats-grid.animate-in .stat-card:nth-child(1) {
  transition-delay: 0s;
}
.stats-grid.animate-in .stat-card:nth-child(2) {
  transition-delay: 0.08s;
}
.stats-grid.animate-in .stat-card:nth-child(3) {
  transition-delay: 0.16s;
}
.stats-grid.animate-in .stat-card:nth-child(4) {
  transition-delay: 0.24s;
}
.stats-grid.animate-in .stat-card:nth-child(5) {
  transition-delay: 0.32s;
}
.stats-grid.animate-in .stat-card:nth-child(6) {
  transition-delay: 0.4s;
}

.faq-grid.animate-in .faq-item:nth-child(1) {
  transition-delay: 0s;
}
.faq-grid.animate-in .faq-item:nth-child(2) {
  transition-delay: 0.04s;
}
.faq-grid.animate-in .faq-item:nth-child(3) {
  transition-delay: 0.08s;
}
.faq-grid.animate-in .faq-item:nth-child(4) {
  transition-delay: 0.12s;
}
.faq-grid.animate-in .faq-item:nth-child(5) {
  transition-delay: 0.16s;
}
.faq-grid.animate-in .faq-item:nth-child(6) {
  transition-delay: 0.2s;
}

/* Icon pop animation on card entry */
.bento-icon,
.algo-icon,
.step-number {
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.bento-card.animate-in .bento-icon,
.algo-card.animate-in .algo-icon,
.step-card.animate-in .step-number,
.bento-grid.animate-in .bento-icon,
.algorithm-grid.animate-in .algo-icon,
.steps-grid.animate-in .step-number {
  opacity: 1;
  transform: scale(1);
}

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

  .bento-card-1,
  .bento-card-6 {
    grid-column: span 2;
  }

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

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

  .floating-card {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 20px;
  }

  .promo-banner {
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
    font-size: 13px;
  }

  .promo-text {
    display: none;
  }

  .navbar {
    top: var(--space-4);
    width: calc(100% - var(--space-8));
  }

  .nav-links {
    display: none;
  }

  .nav-actions {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding: var(--space-24) 0 var(--space-16);
  }

  .hero-cta {
    flex-direction: column;
    gap: var(--space-3);
  }

  .hero-cta .btn {
    width: 100%;
  }

  .hero-trust {
    flex-direction: column;
    gap: var(--space-4);
  }

  .trust-divider {
    width: 40px;
    height: 1px;
  }

  .section {
    padding: var(--space-16) 0;
  }

  .section-header {
    margin-bottom: var(--space-10);
  }

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

  .bento-card-1,
  .bento-card-3,
  .bento-card-6 {
    grid-column: span 1;
  }

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

  .comparison-container {
    flex-direction: column;
  }

  .comparison-arrow {
    transform: rotate(90deg);
    margin: var(--space-4) auto;
  }

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

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

  .cta-bar {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .form-row {
    flex-direction: column;
  }

  .footer-main {
    flex-direction: column;
    gap: var(--space-8);
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.25rem;
  }
  h2 {
    font-size: 1.75rem;
  }

  .btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: 14px;
  }

  .story-card {
    padding: var(--space-6);
  }

  .bento-card,
  .algo-card,
  .step-card,
  .stat-card {
    padding: var(--space-6);
  }
}