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

:root {
  --bg: #FAFAF7;
  --surface: #FFFFFF;
  --fg: #1A1A2E;
  --fg-muted: #6B7280;
  --accent: #F97316;
  --accent-dark: #EA580C;
  --teal: #0D9488;
  --teal-light: #CCFBF1;
  --border: #E5E7EB;
  --shadow: 0 4px 24px rgba(26,26,46,0.08);
  --shadow-lg: 0 16px 48px rgba(26,26,46,0.12);
  --radius: 12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,250,247,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
  color: var(--fg);
}
.nav-tag {
  font-size: 13px;
  color: var(--fg-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Manifesto */
.manifesto {
  background: var(--fg);
  color: #fff;
  padding: 14px 32px;
  text-align: center;
}
.manifesto-inner { max-width: 1100px; margin: 0 auto; }
.manifesto-text {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: rgba(255,255,255,0.9);
}

/* Hero */
.hero {
  padding: 80px 32px 64px;
  max-width: 1100px;
  margin: 0 auto;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-accent { color: var(--accent); }
.hero-sub {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 420px;
}
.hero-pill-row { display: flex; gap: 10px; flex-wrap: wrap; }
.pill {
  display: inline-block;
  padding: 6px 14px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
}

/* Chat mockup */
.hero-mockup {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.chat-window {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}
.chat-header {
  background: var(--fg);
  color: #fff;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.chat-title {
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 14px;
}
.chat-status {
  font-size: 11px;
  font-weight: 600;
  background: var(--teal);
  color: #fff;
  padding: 3px 8px;
  border-radius: 100px;
  letter-spacing: 0.5px;
}
.chat-body { padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.chat-msg {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  max-width: 85%;
}
.chat-msg.bot { background: #F3F4F6; color: var(--fg); border-bottom-left-radius: 4px; }
.chat-msg.bot.highlight { background: #FFF7ED; border: 1px solid #FED7AA; border-bottom-left-radius: 4px; }
.chat-msg.user { background: var(--accent); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.chat-footer { padding: 8px 20px 14px; }
.chat-hint { font-size: 12px; color: var(--fg-muted); }

.channel-row { display: flex; gap: 10px; justify-content: center; }
.channel-badge {
  padding: 5px 12px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--fg);
}
.channel-badge.wa { background: #25D366; border-color: #25D366; color: #fff; }

/* Section label */
.section-label {
  font-family: 'Syne', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.section-sub {
  font-size: 15px;
  color: var(--fg-muted);
  margin-bottom: 40px;
}

/* Channels */
.channels { background: var(--surface); padding: 80px 32px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.channels-inner { max-width: 1100px; margin: 0 auto; }
.channel-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.channel-card {
  padding: 28px 24px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
}
.channel-card.wa-card { border-color: #25D366; }
.channel-icon { color: var(--teal); margin-bottom: 16px; }
.channel-card.wa-card .channel-icon { color: #25D366; }
.channel-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.channel-card p { font-size: 14px; color: var(--fg-muted); line-height: 1.6; }

/* Features */
.features { padding: 80px 32px; }
.features-inner { max-width: 1100px; margin: 0 auto; }
.features-row { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; margin-bottom: 64px; }
.features-row:last-child { margin-bottom: 0; }
.feature-block {}
.feature-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--teal);
  background: var(--teal-light);
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 16px;
}
.feature-block h2 {
  font-family: 'Syne', sans-serif;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.feature-block p { font-size: 15px; color: var(--fg-muted); line-height: 1.7; margin-bottom: 12px; }
.feature-detail { font-size: 14px; color: var(--fg); font-weight: 500; border-left: 3px solid var(--accent); padding-left: 14px; }

/* Languages */
.languages { background: var(--fg); padding: 80px 32px; }
.languages-inner { max-width: 1100px; margin: 0 auto; text-align: center; }
.languages .section-label { color: var(--accent); }
.languages .section-sub { color: rgba(255,255,255,0.6); }
.lang-grid { margin-bottom: 24px; }
.lang-row { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.lang-item {
  padding: 6px 16px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 100px;
  font-size: 13px;
  color: rgba(255,255,255,0.75);
}
.lang-item.highlight {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.lang-note { font-size: 13px; color: rgba(255,255,255,0.45); }

/* Quote */
.quote-section { padding: 80px 32px; background: var(--surface); }
.quote-inner { max-width: 680px; margin: 0 auto; text-align: center; }
.quote-text {
  font-family: 'Syne', sans-serif;
  font-size: 26px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.3px;
  color: var(--fg);
  margin-bottom: 32px;
}
.quote-attr { display: flex; align-items: center; justify-content: center; gap: 14px; }
.quote-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.quote-name { display: block; font-weight: 600; font-size: 15px; }
.quote-role { display: block; font-size: 13px; color: var(--fg-muted); }

/* Closing */
.closing { padding: 80px 32px 100px; max-width: 1100px; margin: 0 auto; }
.closing-inner { max-width: 700px; }
.closing-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 24px;
}
.closing-body {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 560px;
}

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 32px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.footer-logo { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 16px; }
.footer-sub { font-size: 13px; color: var(--fg-muted); }
.footer-links a { font-size: 13px; color: var(--fg-muted); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-mockup { order: -1; }
  .features-row { grid-template-columns: 1fr; gap: 40px; }
  .channel-grid { grid-template-columns: 1fr 1fr; }
  .nav-inner { padding: 14px 20px; }
  .hero { padding: 48px 20px 40px; }
  .closing { padding: 48px 20px 64px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 480px) {
  .channel-grid { grid-template-columns: 1fr; }
  .quote-text { font-size: 20px; }
}