:root {
  /* Core Colors */
  --bg-cream: #F5F2ec;
  --bg-dark: #121212;
  --bg-pure-black: #000000;
  
  --text-dark: #1c1c1e;
  --text-light: #F5F2ec;
  --text-muted: rgba(28, 28, 30, 0.4);
  --text-muted-light: rgba(245, 242, 236, 0.6);
  
  /* Accents */
  --accent-void: rgba(0,0,0,0.03);
  --border-dashed: 1px dashed rgba(28, 28, 30, 0.25);
  --border-solid: 1px solid rgba(28, 28, 30, 0.1);
  
  /* Typos */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
  
  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 32px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-cream);
  color: var(--text-dark);
  line-height: 1.5;
  overflow-x: hidden;
  cursor: none; /* Custom cursor */
}

/* Custom Cursor */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background-color: var(--text-dark);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease;
  mix-blend-mode: difference;
}

.cursor-outline {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 1px solid var(--text-dark);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, border-width 0.2s;
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
  mix-blend-mode: difference;
}

a:hover ~ .cursor-outline, button:hover ~ .cursor-outline, .mockup-btn:hover ~ .cursor-outline {
  width: 60px;
  height: 60px;
  border-width: 2px;
}

/* Typography utilities */
.mono { font-family: var(--font-mono); }
.text-center { text-align: center; }

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 24px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  mix-blend-mode: difference;
  color: var(--text-light); /* Appears dark on cream via difference */
}

.logo-text {
  font-family: var(--font-sans);
  font-weight: 800;
  letter-spacing: 0.3em;
  font-size: 1.2rem;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.lang-switcher button {
  background: transparent;
  border: 1px solid currentColor;
  color: inherit;
  border-radius: 4px;
  padding: 4px 8px;
  font-family: var(--font-mono);
  cursor: none;
  font-size: 0.8rem;
  transition: opacity 0.2s;
}

.lang-switcher button:hover {
  opacity: 0.7;
}

.nav-btn {
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-btn .arrow {
  transition: transform 0.3s ease;
}

.nav-btn:hover .arrow {
  transform: translate(3px, -3px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 5% 60px;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.sub-badge {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 6px 14px;
  background: var(--text-dark);
  color: var(--bg-cream);
  border-radius: 100px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.sub-badge span {
  background: #ff5500;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: bold;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-title .line {
  overflow: hidden;
  display: block;
}

.hero-title .word {
  display: inline-block;
}

.highlight {
  color: #ff5500; /* Subtle aggressive mark for "moat" */
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  font-weight: 400;
  max-width: 480px;
}

/* Interactive Input Mockup */
.mockup-container {
  margin-top: 64px;
  width: 100%;
  max-width: 420px;
  perspective: 1000px;
}

.input-mockup {
  background: var(--bg-cream);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.1), inset 0 0 0 1px rgba(255,255,255,0.5);
  transform-style: preserve-3d;
  will-change: transform;
}

.mockup-header {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.4em;
  margin-bottom: 24px;
}

.mockup-body {
  border-bottom: 2px solid var(--text-dark);
  padding-bottom: 8px;
  margin-bottom: 24px;
  text-align: left;
}

.typing-text {
  font-size: 1.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
}

.blinking-cursor {
  display: inline-block;
  width: 2px;
  height: 28px;
  background: var(--text-dark);
  margin-left: 4px;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.mockup-badges {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
  text-align: left;
}

.badge {
  border: var(--border-dashed);
  padding: 16px 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
}

.badge.active {
  background: var(--text-dark);
  color: var(--bg-cream);
  border: 1px solid var(--text-dark);
}

.badge-tag {
  position: absolute;
  top: -10px;
  right: 10px;
  background: var(--text-dark);
  color: var(--bg-cream);
  font-size: 0.6rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.mockup-btn {
  background: var(--bg-dark);
  color: var(--text-light);
  width: 100%;
  padding: 16px;
  font-weight: 600;
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  cursor: none;
  transition: transform 0.2s, background 0.2s;
}

.mockup-btn:hover {
  background: #000;
  transform: scale(0.98);
}

/* Philosophy Section */
.philosophy {
  background: var(--text-dark);
  color: var(--bg-cream);
  padding: 160px 0;
  min-height: 150vh; /* For sticky scrolling */
}

.sticky-container {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.marquee-wrapper {
  position: absolute;
  top: 20%;
  width: 100%;
  transform: rotate(-2deg) scale(1.1);
  overflow: hidden;
  opacity: 0.1;
  pointer-events: none;
}

.marquee {
  font-family: var(--font-mono);
  font-size: 6rem;
  white-space: nowrap;
  font-weight: 700;
}

.philosophy-text-container {
  max-width: 900px;
  padding: 0 5%;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.philosophy h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.2;
  margin-bottom: 32px;
}

.philosophy p {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--text-muted-light);
  max-width: 700px;
}

.reveal-text .block, .reveal-paragraph {
  opacity: 0.2;
  transform: translateY(20px);
}

/* iPhone Showcase Section */
.iphone-showcase {
  background: var(--bg-pure-black);
  height: 400vh; /* creates scrollable space for pinning */
  position: relative;
  overflow: clip; /* hide overscrolling elements horizontally */
}

.showcase-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.sc-texts {
  position: absolute;
  left: 10%;
  top: 50%;
  transform: translateY(-50%);
  width: 300px;
  z-index: 10;
}

.sc-text {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  opacity: 0; /* JS will control this */
  position: absolute;
  top: 0;
  left: 0;
  white-space: nowrap;
}

.iphone-frame-wrapper {
  position: relative;
  z-index: 5;
  transform-origin: center center;
}

.iphone-frame {
  width: 340px;
  height: 720px;
  border-radius: 55px;
  background: #000;
  padding: 12px;
  box-shadow: 
    inset 0 0 0 2px #444, 
    inset 0 0 10px 4px #111,
    0 30px 60px rgba(0,0,0,0.8),
    0 0 0 6px #1c1c1e; /* simulated physical border */
  position: relative;
}

.iphone-notch {
  position: absolute;
  width: 100px;
  height: 30px;
  background: #000;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  border-bottom-left-radius: 20px;
  border-bottom-right-radius: 20px;
  z-index: 20;
}

.iphone-screen {
  width: 100%;
  height: 100%;
  background: var(--bg-cream); /* fallback */
  border-radius: 43px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 0 4px rgba(0,0,0,0.3);
}

.iphone-carousel {
  display: flex;
  height: 100%;
  width: 300%; /* 3 slides */
}

.iphone-slide {
  flex: 1;
  height: 100%;
  display: flex;
  align-items: flex-start; /* top align screenshots */
  overflow: hidden;
}

.mock-img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Fallbacks if img fails */
.mock-img {
  background-color: var(--bg-cream);
  min-height: 100%;
  display: block;
}

/* Pillars Section */
.pillars {
  padding: 160px 5%;
  background: var(--bg-cream);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-heading {
  margin-bottom: 80px;
}

.mono-label {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 24px;
}

.section-heading h2 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.pillar-card {
  border: var(--border-dashed);
  background: var(--bg-cream);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s;
}

.pillar-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.05);
  background: #fff;
  border-style: solid;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: var(--border-solid);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.category-name {
  font-size: 1.5rem;
  font-weight: 800;
}

.count {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.task-row {
  font-size: 1.1rem;
  padding: 12px 0;
  font-weight: 600;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  display: flex;
  gap: 8px;
  align-items: center;
}

.cli-prefix {
  font-family: var(--font-mono);
  color: var(--text-muted);
  opacity: 0.5;
}

.card-desc {
  margin-top: auto;
  padding-top: 32px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* AI Decompose Section */
.ai-decompose {
  padding: 120px 5%;
  background: #edebe4; /* Slightly darker cream for contrast */
  border-top: 1px solid rgba(0,0,0,0.05);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.visual-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

@media (max-width: 900px) {
  .visual-split {
    grid-template-columns: 1fr;
  }
}

.split-left p {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin: 32px 0;
}

.cli-terminal {
  background: var(--text-dark);
  color: #00ff41; /* hacker green */
  padding: 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.terminal-header {
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding-bottom: 12px;
  margin-bottom: 12px;
  color: rgba(255,255,255,0.5);
}

.decompose-mockup {
  background: var(--bg-cream);
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.1);
}

.deco-header {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.deco-group {
  margin-bottom: 24px;
}

.group-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.deco-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border: 1px solid rgba(0,0,0,0.05);
  background: #fff;
  margin-bottom: 8px;
  font-weight: 600;
}

.deco-row .tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 8px;
  background: var(--bg-cream);
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: 4px;
}

.deco-row .tag.dark {
  background: var(--text-dark);
  color: var(--bg-cream);
}

.deco-btn {
  background: var(--text-dark);
  color: var(--bg-cream);
  text-align: center;
  padding: 16px;
  font-weight: 600;
  margin-top: 32px;
}

/* Footer Section */
.footer {
  padding: 160px 5% 80px;
  background: var(--bg-cream);
}

.cta-title {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

.cta-sub {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.buy-btn {
  background: var(--text-dark);
  color: var(--bg-cream);
  border: none;
  padding: 24px 64px;
  font-size: 1.25rem;
  font-weight: 600;
  border-radius: 100px; /* pill shape for focus */
  cursor: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s;
}

.buy-btn:hover {
  transform: scale(1.05) translateY(-4px);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.2);
}

.footer-links {
  margin-top: 120px;
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-links a {
  color: var(--text-dark);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
}

.footer-links a:hover {
  text-decoration: underline;
}

.copyright {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Utility Animations */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
}