:root {
  --bg: #FAFAF8;
  --fg: #1A1A18;
  --accent: #E85D04;
  --accent-light: #FFF0E6;
  --muted: #8C8680;
  --surface: #FFFFFF;
  --border: #E8E6E1;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Instrument Sans', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.nav-logo {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--fg);
}
.nav-tagline {
  font-size: 13px;
  color: var(--muted);
  font-weight: 400;
}

/* Hero */
.hero {
  padding: 80px 24px 60px;
}
.hero-layout {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-overline {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.hero-headline {
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--fg);
}
.hero-sub {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 16px;
}
.hero-target {
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}
.hero-target strong { color: var(--fg); }

/* Phone mockup */
.phone-frame {
  width: 220px;
  background: var(--fg);
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 32px 64px rgba(0,0,0,0.12), 0 8px 24px rgba(0,0,0,0.08);
  margin-left: auto;
}
.phone-notch {
  width: 80px;
  height: 24px;
  background: var(--fg);
  border-radius: 20px;
  margin: 0 auto 10px;
}
.phone-screen {
  background: var(--surface);
  border-radius: 28px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.notif {
  padding: 10px 12px;
  border-radius: 12px;
  font-family: var(--sans);
}
.missed {
  background: #FFF0E6;
  border: 1px solid #F5C89A;
}
.missed .notif-time { font-size: 10px; color: #A05A00; }
.missed .notif-label { display: block; font-size: 11px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 0.05em; }
.missed .notif-num { display: block; font-size: 12px; color: var(--fg); margin-top: 2px; }
.ai-response {
  background: #F0F4FF;
  border: 1px solid #C4D0F5;
}
.ai-badge { font-size: 10px; font-weight: 700; color: #4A5FA8; text-transform: uppercase; letter-spacing: 0.05em; }
.notif-msg { font-size: 11px; color: var(--fg); margin: 4px 0; line-height: 1.5; }
.ai-response .notif-time { font-size: 10px; color: var(--muted); }
.booked { background: #EDF7F0; border: 1px solid #B8DFBF; }
.booked-badge { font-size: 11px; font-weight: 700; color: #2D7A4F; }
.booked .notif-time { display: block; font-size: 11px; color: var(--muted); margin-top: 3px; }

/* Problem */
.problem { background: var(--fg); color: var(--bg); padding: 80px 24px; }
.problem-inner { max-width: 1100px; margin: 0 auto; }
.section-overline { font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.section-headline { font-family: var(--serif); font-size: clamp(28px, 4vw, 42px); line-height: 1.15; margin-bottom: 48px; color: inherit; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #2E2E2B; border-radius: 16px; overflow: hidden; margin-bottom: 40px; }
.stat { background: #252522; padding: 32px 28px; }
.stat-number { display: block; font-family: var(--serif); font-size: 48px; color: var(--accent); line-height: 1; margin-bottom: 8px; }
.stat-desc { font-size: 13px; color: #8C8C86; line-height: 1.5; }
.problem-quote { border-left: 3px solid var(--accent); padding-left: 24px; }
.problem-quote p { font-size: 16px; color: #A8A8A0; line-height: 1.7; font-style: italic; }

/* Service */
.service { padding: 80px 24px; }
.service-inner { max-width: 1100px; margin: 0 auto; }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.cap { background: var(--surface); padding: 32px 28px; border: 1px solid var(--border); border-radius: 2px; }
.cap-icon { width: 40px; height: 40px; background: var(--accent-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--accent); }
.cap h3 { font-size: 15px; font-weight: 600; margin-bottom: 8px; color: var(--fg); }
.cap p { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* Stack */
.stack { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 64px 24px; }
.stack-inner { max-width: 1100px; margin: 0 auto; }
.stack-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; margin-bottom: 28px; }
.stack-item { background: var(--bg); padding: 24px; border-radius: 2px; }
.stack-name { display: block; font-size: 14px; font-weight: 700; color: var(--fg); margin-bottom: 4px; }
.stack-desc { font-size: 12px; color: var(--muted); line-height: 1.5; }
.stack-note { font-size: 13px; color: var(--muted); font-style: italic; }

/* Outcomes */
.outcomes { padding: 80px 24px; }
.outcomes-inner { max-width: 1100px; margin: 0 auto; }
.outcome-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.outcome-card { background: var(--surface); padding: 28px; border: 1px solid var(--border); border-radius: 2px; }
.outcome-label { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.outcome-text { font-size: 15px; color: var(--fg); line-height: 1.6; margin-top: 8px; font-weight: 500; }
.highlight-card { background: var(--accent-light); border-color: #F5C89A; }
.highlight-label { color: var(--accent); }
.outcome-sub { font-size: 13px; color: var(--muted); margin-top: 6px; }

/* Closing */
.closing { background: var(--fg); color: var(--bg); padding: 80px 24px; text-align: center; }
.closing-inner { max-width: 720px; margin: 0 auto; }
.closing-headline { font-family: var(--serif); font-size: clamp(28px, 4vw, 44px); line-height: 1.15; margin-bottom: 20px; }
.closing-sub { font-size: 16px; color: #8C8C86; }

/* Footer */
.footer { background: var(--bg); border-top: 1px solid var(--border); padding: 40px 24px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.footer-logo { font-family: var(--serif); font-size: 18px; color: var(--fg); display: block; margin-bottom: 4px; }
.footer-desc { font-size: 13px; color: var(--muted); }
.footer-meta p { font-size: 12px; color: var(--muted); }

/* Responsive */
@media (max-width: 768px) {
  .hero-layout { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .stat-row { grid-template-columns: 1fr; }
  .capability-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: 1fr 1fr; }
  .outcome-cards { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 16px; }
  .closing { padding: 60px 24px; }
  .problem, .service, .outcomes { padding: 60px 24px; }
  .stack { padding: 48px 24px; }
}

@media (max-width: 480px) {
  .stack-grid { grid-template-columns: 1fr; }
}