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

:root {
  --bg: #f4f9fb;
  --fg: rgb(31, 41, 55);
  --fg-muted: rgb(75, 85, 99);
  --fg-light: rgb(156, 163, 175);
  --accent: #0d9488;
  --nav-h: 65px;
  --px: clamp(24px, 5vw, 80px);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Instrument Serif", serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

/* ─── NAV ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--px);
  background: rgba(244, 249, 251, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.5);
  z-index: 100;
  max-width: 100%;
}
nav .nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 24px;
}

.nav-logo {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  color: var(--fg);
  text-decoration: none;
}

.nav-logo svg { width: 40px; height: 40px; }
.logo-img { width: 40px; height: 40px; border-radius: 8px; object-fit: contain; }

.nav-links {
  display: flex; align-items: center; gap: 24px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
  opacity: 0.7;
  text-decoration: none;
  transition: opacity 0.15s;
}

.nav-links a:hover { opacity: 1; }

.btn-primary {
  background: #000;
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 8px 16px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  height: 40px;
  transition: background 0.15s;
}
.btn-primary:hover { background: rgba(0,0,0,0.85); }

/* ─── HERO ─── */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  max-width: 1280px;
  margin: 0 auto;
  padding: calc(var(--nav-h) + 60px) var(--px) 60px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 72px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1.8px;
  color: var(--fg);
  max-width: 900px;
}

.hero h1 em {
  font-style: italic;
}

.hero-sub {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  font-style: normal;
  color: var(--fg-muted);
  margin-top: 16px;
  line-height: 1.1;
}

.hero-cta {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.btn-launch {
  background: #000;
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 0 40px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  height: 56px;
  display: inline-flex;
  align-items: center;
  transition: background 0.15s;
}
.btn-launch:hover { background: rgba(0,0,0,0.85); }

.hero-note {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  color: var(--fg-muted);
}

.hero-note a {
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
}

/* ─── HERO IMAGE ─── */
.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  width: 100%;
  max-width: 480px;
  border-radius: 16px;
}

/* ─── VIDEO / PRODUCT PREVIEW ─── */
.product-preview {
  padding: 0 var(--px) 64px;
  display: flex;
  justify-content: center;
}

.preview-card {
  width: 100%;
  max-width: 1100px;
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 40%, #115e59 100%);
  border-radius: 24px;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.play-btn {
  width: 80px; height: 80px;
  background: rgba(255,255,255,0.9);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  border: none;
  position: relative;
  z-index: 2;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.play-btn svg { width: 40px; height: 40px; fill: #000; margin-left: 4px; }

/* ─── COMPUTING FOR EVERYONE ─── */
.section-everyone {
  padding: 48px var(--px) 48px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.section-everyone h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 60px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.section-everyone h2 em { font-style: italic; }

.section-everyone .sub {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 400;
  color: var(--fg);
  line-height: 1.55;
  max-width: 520px;
  margin: 0 auto;
}

.section-everyone .sub2 {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 400;
  color: var(--fg);
  margin-top: 4px;
  max-width: 520px;
  margin-left: auto; margin-right: auto;
}

/* ─── FEATURES (01–04) ─── */
.features-section {
  padding: 96px var(--px);
  display: flex;
  justify-content: center;
}

.features-inner {
  width: 100%;
  max-width: 1280px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.features-mockup {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mockup-sidebar {
  background: #0f766e;
  border-radius: 12px 0 0 12px;
  width: 160px;
  min-height: 380px;
  padding: 16px 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: rgba(255,255,255,0.85);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mockup-sidebar .sec-label { font-size: 10px; color: rgba(255,255,255,0.5); text-transform: uppercase; margin-bottom: 4px; }

.mockup-main {
  background: #fff;
  border-radius: 0 12px 12px 0;
  flex: 1;
  min-height: 380px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 4px 0 20px rgba(0,0,0,0.08);
}

.claw-icon {
  width: 64px; height: 64px;
  margin-bottom: 12px;
}

.mockup-greeting {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--fg-muted);
  margin-bottom: 20px;
}

.mockup-input {
  width: 100%;
  background: #fafaf8;
  border-radius: 8px;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--fg);
  border: 1px solid #e5e5e0;
}

.mockup-actions {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.mockup-action-btn {
  background: #f5f5f0;
  border: 1px solid #e5e5e0;
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 12px;
  font-family: var(--font-sans);
  color: var(--fg-muted);
  cursor: pointer;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.feature-num {
  font-family: var(--font-display);
  font-size: 30px;
  font-style: normal;
  line-height: 1.2;
  padding-top: 2px;
}

.feature-text h3 {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  color: #000;
  margin-bottom: 8px;
  line-height: 1.4;
}

.feature-text p {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ─── AI SHOULD WORK WITH YOU ─── */
.section-ai {
  padding: 96px var(--px) 48px;
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.section-ai h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 60px);
  font-weight: 400;
  letter-spacing: -1.5px;
  line-height: 1;
  margin-bottom: 24px;
  max-width: 800px;
}
.section-ai h2 em { font-style: italic; }

.section-ai .sub {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  color: var(--fg-muted);
  margin-top: 0;
}

.ai-feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1280px;
  width: 100%;
  margin-top: 64px;
}

.ai-illus {
  display: flex;
  justify-content: center;
  align-items: center;
}

.old-computer {
  width: 260px;
  opacity: 0.85;
}

.ai-copy {
  text-align: left;
}

.ai-copy p {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 400;
  color: var(--fg);
  opacity: 0.8;
  line-height: 1.625;
  margin-bottom: 4px;
}

/* ─── SKILLS ─── */
.section-skills {
  padding: 96px var(--px);
  display: flex;
  justify-content: center;
}

.skills-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1280px;
  width: 100%;
}

.skills-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 400;
  line-height: 1.11;
  letter-spacing: -0.9px;
  margin-bottom: 24px;
}

.skills-copy p {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 400;
  color: rgb(55, 65, 81);
  line-height: 1.625;
}

.skills-copy .beyond-lead {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 400;
  color: var(--fg);
  line-height: 1.3;
  margin-bottom: 16px;
}

.skills-copy .tasks {
  margin-top: 24px;
}

.skills-copy .tasks p {
  margin-top: 0;
}

.skills-illus {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ─── AGENTS REST ─── */
.section-agents {
  padding: 96px var(--px);
  display: flex;
  justify-content: center;
}

.agents-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1280px;
  width: 100%;
}

.agents-illus {
  display: flex;
  justify-content: center;
}

.agents-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 400;
  line-height: 1.11;
  letter-spacing: -0.9px;
  margin-bottom: 24px;
}

.agents-copy p {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 400;
  color: rgb(55, 65, 81);
  line-height: 1.625;
}

.agents-copy .steps { margin-top: 0; }

/* ─── FOOTER BANNER ─── */
.footer-banner {
  width: 100%;
  display: flex;
  justify-content: center;
}

.footer-banner img {
  width: 100%;
  display: block;
}

/* ─── FOOTER ─── */
footer {
  padding: 48px var(--px) 32px;
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 48px;
  max-width: 1280px;
  margin: 0 auto;
}

.footer-brand .logo {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  color: var(--fg);
  opacity: 0.6;
  text-decoration: none;
}

.footer-brand .tagline {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--fg);
  opacity: 0.6;
  margin-top: 8px;
  line-height: 1.43;
}

.footer-socials {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.social-icon {
  width: 32px; height: 32px;
  background: var(--fg);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  text-decoration: none;
}

.social-icon svg { width: 14px; height: 14px; fill: #fff; }

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--fg);
  opacity: 0.4;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--fg);
  text-decoration: none;
  transition: opacity 0.15s;
}
.footer-col a:hover { opacity: 0.6; }

.footer-bottom {
  text-align: center;
  padding: 16px 0 32px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--fg);
  opacity: 0.3;
}