/* ═══════════════════════════════════════════════
   MILLIGRAM — Mobile-First Landing Page v2
   Base = 375px mobile. Enhanced upward via min-width.
   Instrument Sans (display) + DM Sans (body)
   ═══════════════════════════════════════════════ */

/* ─── TOKENS ─── */
:root {
  --bg: #08090C;
  --surface: #111318;
  --elevated: #191C22;
  --surface-deep: #0C0D11;
  --surface-overlay: #23262D;
  --border: rgba(255,255,255,0.08);
  --border-accent: rgba(255,255,255,0.08);
  --green: #00FF88;
  --green-dim: rgba(0,255,136,0.08);
  --green-glow: rgba(0,255,136,0.25);
  --platinum: #E8EAF0;
  --platinum-text: #0B0D10;
  --platinum-stroke: rgba(11,13,16,0.08);
  --off-white: #ECEEF2;
  --cta2-stroke: rgba(236,238,242,0.22);
  --text-tertiary-cool: #6B7280;
  --shadow-ambient: 0 10px 30px rgba(0,0,0,0.25);
  --purple: #A78BFA;
  --blue: #60A5FA;
  --text: #EEEEF2;
  --text-secondary: rgba(238,238,242,0.5);
  --text-tertiary: rgba(238,238,242,0.25);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --max-w: 1160px;
  --section-pad: 48px;
  --font-display: 'Instrument Sans', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Sans', sans-serif;
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

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

/* Grain */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 128px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }

/* ─── TYPOGRAPHY ─── */
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.08; letter-spacing: -0.03em; }
h1 { font-size: 2rem; font-weight: 800; letter-spacing: -0.04em; }
h2 { font-size: 1.3rem; letter-spacing: -0.025em; }
h3 { font-size: 1.05rem; letter-spacing: -0.01em; }
h4 { font-family: var(--font-body); font-weight: 600; }

.accent { color: var(--off-white); }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary-cool);
  margin-bottom: 10px;
}
.section-header { text-align: center; margin-bottom: 28px; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 16px; }

/* ─── BUTTONS ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 24px;
  background: var(--platinum);
  color: var(--platinum-text);
  border: 1px solid var(--platinum-stroke);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
  -webkit-tap-highlight-color: transparent;
}
.btn-primary:active { transform: scale(0.97); }
.btn-primary svg { width: 18px; height: 18px; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 16px 24px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: all 0.25s;
  -webkit-tap-highlight-color: transparent;
}
.btn-ghost:active { border-color: var(--off-white); color: var(--off-white); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  background: var(--elevated);
  border: 1px solid var(--cta2-stroke);
  color: var(--off-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  transition: all 0.25s;
  -webkit-tap-highlight-color: transparent;
}
.btn-secondary svg { width: 16px; height: 16px; }

.btn-glow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
  padding: 17px 32px;
  background: var(--platinum);
  color: var(--platinum-text);
  border: 1px solid var(--platinum-stroke);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-ambient);
  transition: all 0.25s;
  -webkit-tap-highlight-color: transparent;
}
.btn-glow:active { transform: scale(0.97); }
.btn-glow svg { width: 20px; height: 20px; }

/* ─── NAV & FOOTER FONT OVERRIDES ─── */
.nav-brand { font-family: var(--font-display); }
.nav-links a { font-family: var(--font-body); }
.nav-cta { font-family: var(--font-display); }
.mobile-nav-overlay a { font-family: var(--font-display); }
.site-footer .footer-brand { font-family: var(--font-display); }
.site-footer .footer-col a { font-family: var(--font-body); }
.site-footer .footer-disclaimer { font-family: var(--font-body); }

/* ═══════════════════════════════════════
   S1: HERO
   ═══════════════════════════════════════ */
.hero {
  position: relative;
  padding: calc(60px + 48px) 0 48px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  width: 120%;
  height: 60%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.03) 0%, transparent 65%);
  pointer-events: none;
}

.hero-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}
.hero-text { max-width: 100%; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary-cool);
  margin-bottom: 20px;
  opacity: 0;
  animation: fade-in 0.8s 0.2s ease forwards;
}
.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--off-white);
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.scroll-arrow {
  text-align: center;
  padding: 0 0 20px;
}
.scroll-arrow svg {
  width: 32px;
  height: 32px;
  color: var(--text-secondary);
  animation: arrow-bounce 2s ease-in-out infinite;
}
@keyframes arrow-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(8px); opacity: 0.7; }
}

.mobile-break { display: block; }
@media (min-width: 640px) { .mobile-break { display: none; } }

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 16px;
  opacity: 0;
  animation: fade-in 0.8s 0.15s ease forwards;
  transition: border-color 0.2s;
}
.hero-pill:hover { border-color: var(--border-accent); }
.hero-pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--off-white);
  animation: dot-pulse 2s ease-in-out infinite;
}
.hero h1 { margin-bottom: 16px; opacity: 0; animation: fade-up 0.9s 0.3s cubic-bezier(0.16,1,0.3,1) forwards; }
.hero-sub { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.65; margin-bottom: 0; opacity: 0; animation: fade-up 0.9s 0.45s cubic-bezier(0.16,1,0.3,1) forwards; }
.hero-tagline { font-size: 0.82rem; color: var(--text-tertiary); line-height: 1.5; margin-bottom: 0; opacity: 0; animation: fade-up 0.9s 0.45s cubic-bezier(0.16,1,0.3,1) forwards; letter-spacing: 0.01em; }
.hero-actions { display: flex; flex-direction: column; gap: 10px; margin-bottom: 0; opacity: 0; animation: fade-up 0.9s 0.6s cubic-bezier(0.16,1,0.3,1) forwards; }
.hero-trust { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; opacity: 0; animation: fade-up 0.9s 0.75s cubic-bezier(0.16,1,0.3,1) forwards; }

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
}
.trust-pill svg { width: 12px; height: 12px; opacity: 0.5; }

@keyframes fade-in { to { opacity: 1; } }
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero phone */
.hero-phone-wrap {
  width: 100%;
  max-width: 560px;
  padding: 0 28px;
  opacity: 0;
  animation: chart-enter 1s 0.5s cubic-bezier(0.16,1,0.3,1) forwards;
}
@keyframes chart-enter {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.hero-phone {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
  position: relative;
  animation: border-glow 3s ease-in-out infinite;
}
@keyframes border-glow {
  0%, 100% { border-color: rgba(255,255,255,0.06); box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 0 0 rgba(255,255,255,0); }
  50% { border-color: rgba(255,255,255,0.2); box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 20px 0 rgba(255,255,255,0.04); }
}
.hero-phone { margin-bottom: 16px; will-change: transform; }
.hero-phone img, .hero-phone picture img { width: 100%; height: auto; display: block; max-height: 360px; object-fit: cover; object-position: center; }

/* ═══════════════════════════════════════
   S2: SOCIAL PROOF
   ═══════════════════════════════════════ */
.social-proof {
  padding: var(--section-pad) 0 36px;
  border-top: 1px solid var(--border);
}
.social-proof h2 { font-size: 1.8rem; }

.laurel-wrap {
  text-align: center;
  margin-top: 36px;
}
.laurel-badge {
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  opacity: 0.85;
}

.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  max-width: 540px;
  margin: 0 auto;
  padding: 0 8px;
}

.review-card {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s;
  min-height: 88px;
}
.review-avatar {
  width: 120px;
  height: 120px;
  object-fit: cover;
  flex-shrink: 0;
  border-radius: 25%;
  margin: -14px;
}
.review-body {
  min-width: 0;
  flex: 1;
  padding: 8px 12px 8px 4px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.review-name-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}
.review-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.2;
}
.review-stars {
  font-size: 0.65rem;
  color: #FFD700;
  letter-spacing: 1px;
  flex-shrink: 0;
}
.review-card p {
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.5;
  font-style: italic;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ═══════════════════════════════════════
   S3: PROBLEM STATEMENT
   ═══════════════════════════════════════ */
.problem-section {
  position: relative;
  padding: var(--section-pad) 0 16px;
}
.problem-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.06;
  pointer-events: none;
}
.problem-sub {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin: 16px auto 0;
}
.pain-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
  padding: 0 8px;
}
.pain-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 22px 20px;
}
.pain-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.pain-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  flex-shrink: 0;
}
.pain-icon svg { width: 18px; height: 18px; }
.pain-card h3 { font-size: 0.95rem; margin: 0; color: var(--text); }
.pain-card p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.55; }

/* ═══════════════════════════════════════
   S4: AI SHOWCASE
   ═══════════════════════════════════════ */
.ai-showcase {
  padding: 16px 0 var(--section-pad);
}
.ai-showcase .section-header { margin-bottom: 32px; }
.ai-sub {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 580px;
  margin: 12px auto 0;
}
.ai-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Chat phone frame */
.chat-phone-frame {
  max-width: 100%;
  margin: 0 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 0 16px 20px;
  overflow: hidden;
}
.chat-phone-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.chat-phone-time {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.chat-phone-dots {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
}

/* Chat demo */
.chat-demo {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.chat-bubble {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.chat-bubble.chat-visible {
  opacity: 1;
  transform: translateY(0);
}
.chat-user {
  align-self: flex-end;
  max-width: 82%;
  padding: 11px 16px;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: 18px 18px 4px 18px;
}
.chat-user p { font-size: 0.85rem; line-height: 1.5; }
.chat-ai {
  align-self: flex-start;
  max-width: 90%;
  display: flex;
  gap: 10px;
}
.chat-ai-avatar {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-overlay);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--off-white);
}
.chat-ai-avatar svg { width: 14px; height: 14px; }
.chat-ai-content {
  padding: 11px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px 18px 18px 4px;
}
.chat-ai-content p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* Typing dots */
.chat-typing {
  align-self: flex-start;
  display: flex;
  gap: 4px;
  padding: 14px 18px;
  opacity: 0;
}
.chat-typing.chat-visible { opacity: 1; }
.chat-typing span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-tertiary);
  animation: typing-dot 1.4s ease-in-out infinite;
}
.chat-typing span:nth-child(2) { animation-delay: 0.15s; }
.chat-typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing-dot {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* AI capability cards */
.ai-capabilities {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ai-cap-card {
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.ai-cap-icon {
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-overlay);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--off-white);
  margin-bottom: 12px;
}
.ai-cap-icon svg { width: 18px; height: 18px; }
.ai-cap-card h3 { font-size: 0.95rem; margin-bottom: 6px; }
.ai-cap-card p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.5; }

/* AI CTA */
.ai-cta {
  text-align: center;
  margin-top: 40px;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}
.ai-cta-sub {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  margin-top: 12px;
}

/* ═══════════════════════════════════════
   S5: FEATURE GRID
   ═══════════════════════════════════════ */
.features-section { padding: var(--section-pad) 0; }

.features-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  overflow: hidden;
  transition: border-color 0.3s;
}
.feature-num {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  color: rgba(238,238,242,0.15);
  display: block;
  margin-bottom: 14px;
}
.feature-icon {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-overlay);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--off-white);
  margin-bottom: 16px;
}
.feature-icon svg { width: 20px; height: 20px; }
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }
.feature-decoration { margin-top: 20px; width: 100%; height: auto; opacity: 0.7; }

/* ═══════════════════════════════════════
   S6: CATEGORIES
   ═══════════════════════════════════════ */
.categories-section { padding: 0 0 var(--section-pad); }
.categories-row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: border-color 0.25s, color 0.25s;
  -webkit-tap-highlight-color: transparent;
}
.cat-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }

/* ═══════════════════════════════════════
   S7: COMPOUND STRIP
   ═══════════════════════════════════════ */
.compound-strip { padding: 24px 0; overflow: hidden; position: relative; display: flex; flex-direction: column; gap: 8px; }
.compound-strip::before, .compound-strip::after { content: ''; position: absolute; top: 0; bottom: 0; width: 60px; z-index: 2; pointer-events: none; }
.compound-strip::before { left: 0; background: linear-gradient(90deg, var(--bg) 0%, transparent 100%); }
.compound-strip::after { right: 0; background: linear-gradient(270deg, var(--bg) 0%, transparent 100%); }
.marquee-track { display: flex; gap: 8px; width: max-content; }
.marquee-row-1 { animation: marquee-left 60s linear infinite; }
.marquee-row-2 { animation: marquee-right 70s linear infinite; }
@keyframes marquee-left { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
@keyframes marquee-right { 0% { transform: translateX(-50%); } 100% { transform: translateX(0); } }
.compound-pill { flex-shrink: 0; padding: 6px 14px; background: var(--surface); border: 1px solid var(--border); border-radius: 100px; font-size: 0.72rem; font-weight: 500; color: var(--text-tertiary); white-space: nowrap; }
.pill-accent { color: var(--text-secondary); border-color: var(--border-accent); }

/* ═══════════════════════════════════════
   S8: PROTOCOL BUILDER
   ═══════════════════════════════════════ */
.builder-section {
  position: relative;
  padding: 24px 0 var(--section-pad);
}
.builder-section h2 { font-size: 1.8rem; }
.builder-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.06;
  pointer-events: none;
}
.builder-sub {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 12px auto 0;
}
.builder-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 8px;
  max-width: 720px;
  margin: 0 8px;
}

/* Ghost chart */
#ghost-fill, #ghost-line { transition: opacity 0.5s ease; }

/* Search */
.builder-search-wrap {
  position: relative;
  margin-bottom: 12px;
  transition: opacity 0.3s ease, max-height 0.3s ease;
}
.builder-search-icon {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  width: 16px; height: 16px;
  color: var(--text-tertiary);
  pointer-events: none;
}
#builder-search {
  width: 100%;
  padding: 14px 14px 14px 40px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
#builder-search:focus { border-color: var(--off-white); }
#builder-search::placeholder { color: var(--text-tertiary); }

/* Dropdown */
.builder-dropdown {
  display: none;
  position: absolute;
  left: 0; right: 0;
  z-index: 10;
  max-height: 240px;
  overflow-y: auto;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  margin-top: -8px;
}
.builder-dropdown.open { display: block; animation: fade-up 0.2s ease; }
.builder-dropdown-item {
  padding: 12px 16px;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.15s;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.builder-dropdown-item:hover { background: rgba(255,255,255,0.04); }
.builder-dropdown-cat {
  font-size: 0.65rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Selected compounds */
.builder-selector { position: relative; }
.builder-selected { display: flex; flex-direction: column; gap: 12px; }
.builder-selected:empty { display: none; }

/* Compound header */
.builder-compound-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  animation: fade-up 0.3s ease;
}
.builder-compound-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}
.builder-close {
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-tertiary);
  cursor: pointer;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: none;
  transition: color 0.2s, border-color 0.2s;
}
.builder-close:hover { color: var(--text); border-color: var(--text-tertiary); }

/* Controls */
.builder-controls {
  display: flex;
  gap: 10px;
  animation: fade-up 0.3s ease;
}
.builder-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.builder-field label {
  font-family: var(--font-body);
  font-size: 0.68rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.builder-field input,
.builder-field select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s ease;
  -webkit-appearance: none;
  -moz-appearance: textfield;
}
.builder-field input::-webkit-outer-spin-button,
.builder-field input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.builder-field input:focus,
.builder-field select:focus { border-color: var(--off-white); }

/* Builder download CTA */
.builder-download {
  text-align: center;
  margin-top: 32px;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 8px;
}
.builder-download-text {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}
.builder-download .btn-primary { width: 100%; }

/* Frequency custom dropdown */
.builder-freq-drop {
  position: relative;
}
.builder-freq-trigger {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color 0.2s ease;
}
.builder-freq-drop.open .builder-freq-trigger { border-color: var(--off-white); }
.builder-freq-chev {
  color: var(--text-tertiary);
  font-size: 0.7rem;
  transition: transform 0.2s ease;
}
.builder-freq-drop.open .builder-freq-chev { transform: rotate(180deg); }
.builder-freq-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  z-index: 10;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  overflow: hidden;
  animation: fade-up 0.15s ease;
}
.builder-freq-menu.open { display: block; }
.builder-freq-item {
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.builder-freq-item:hover { background: rgba(255,255,255,0.04); color: var(--text); }
.builder-freq-item.active { color: var(--off-white); }

/* PK Chart */
.builder-chart-wrap {
  margin-top: 16px;
  padding: 12px 8px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
#builder-chart { width: 100%; height: auto; display: block; }
#builder-chart .builder-path { transition: opacity 0.4s ease; }
.chart-grid { stroke: rgba(255,255,255,0.035); stroke-width: 1; stroke-dasharray: 4 4; }

.builder-stats {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.builder-stat {
  text-align: center;
}
.builder-stat-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
  line-height: 1.2;
}
.builder-stat-label {
  font-size: 0.62rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.builder-legend {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 8px;
}
.builder-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.68rem;
  color: var(--text-secondary);
}
.builder-legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}

/* Builder CTAs */
.builder-ctas {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

/* Calculator accordion */
.calc-accordion {
  margin-top: 16px;
  border-top: 1px solid var(--border);
}
.calc-accordion-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  list-style: none;
}
.calc-accordion-toggle::-webkit-details-marker { display: none; }
.calc-accordion-toggle svg { width: 16px; height: 16px; }
.calc-chevron { margin-left: auto; transition: transform 0.25s; }
.calc-accordion[open] .calc-chevron { transform: rotate(180deg); }
.calc-content { padding-bottom: 16px; }

.calc-inputs { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }
.calc-field label {
  display: block; font-size: 0.68rem; color: var(--text-secondary);
  margin-bottom: 5px; font-family: var(--font-mono);
  letter-spacing: 0.04em; text-transform: uppercase;
}
.calc-field input {
  width: 100%; padding: 12px; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-xs);
  color: var(--text); font-size: 1rem; font-family: var(--font-mono);
  font-weight: 500; outline: none; transition: border-color 0.2s;
  -moz-appearance: textfield;
}
.calc-field input::-webkit-outer-spin-button,
.calc-field input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.calc-field input:focus { border-color: var(--off-white); }

.calc-results {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px;
  margin-bottom: 12px; padding: 14px 12px;
  background: var(--elevated); border-radius: var(--radius-sm);
}
.calc-result-item { text-align: center; }
.calc-result-item .value { font-family: var(--font-mono); font-size: 1.2rem; font-weight: 700; color: var(--text); line-height: 1.2; }
.calc-result-item .label { font-size: 0.58rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 4px; }
.calc-context { text-align: center; font-size: 0.82rem; color: var(--text-secondary); }

/* ═══════════════════════════════════════
   S9: LIFESTYLE SCENARIOS
   ═══════════════════════════════════════ */
.lifestyle-section { padding: var(--section-pad) 0; }
.lifestyle-grid { display: flex; flex-direction: column; gap: 12px; }
.lifestyle-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 2px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 20px;
  overflow: hidden;
}
.lifestyle-time {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--text-tertiary-cool);
  display: block;
  margin-bottom: 10px;
}
.lifestyle-card h3 { font-size: 1rem; margin-bottom: 6px; }
.lifestyle-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }

/* ═══════════════════════════════════════
   S10: FOUNDER
   ═══════════════════════════════════════ */
.founder-section {
  padding: var(--section-pad) 0;
  text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.founder-section h2 { margin-bottom: 16px; font-size: 1.3rem; }
.founder-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 480px;
  margin: 0 auto 20px;
}
.founder-email {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--off-white);
  opacity: 0.7;
  transition: opacity 0.2s;
  letter-spacing: 0.02em;
}
.founder-email:hover { opacity: 1; }

/* ═══════════════════════════════════════
   S11: RESOURCES
   ═══════════════════════════════════════ */
.resources-section { padding: var(--section-pad) 0; }
.resources-grid { display: flex; flex-direction: column; gap: 12px; }
.resource-card {
  display: block; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; transition: border-color 0.3s;
}
.resource-card:active { border-color: var(--border-accent); }
.resource-card h3 { font-size: 1rem; margin-bottom: 4px; }
.resource-card p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.5; }
.resource-card .arrow { display: inline-block; margin-top: 10px; font-size: 0.78rem; color: var(--text-tertiary-cool); font-weight: 600; }

/* ═══════════════════════════════════════
   S12: FAQ
   ═══════════════════════════════════════ */
.faq-section { padding: var(--section-pad) 0 16px; border-top: 1px solid var(--border); }
.faq-cards { display: flex; flex-direction: column; gap: 10px; max-width: 720px; margin: 0 auto; padding: 0 8px; }
.faq-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s;
}
.faq-card summary {
  padding: 18px 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.faq-card summary::-webkit-details-marker { display: none; }
.faq-card summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: color 0.2s;
}
.faq-card[open] summary::after { content: '\2212'; color: var(--text); }
.faq-card[open] { border-color: var(--border-accent); }
.faq-card .faq-answer {
  padding: 0 20px 18px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ═══════════════════════════════════════
   S13: FINAL CTA
   ═══════════════════════════════════════ */
.final-cta-section { position: relative; padding: calc(var(--section-pad) + 24px) 0; text-align: center; overflow: hidden; }
.final-cta-glow { position: absolute; top: 50%; left: 50%; width: 400px; height: 400px; transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 60%); pointer-events: none; }
.final-cta-section h2 { margin-bottom: 12px; }
.final-cta-sub { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 28px; }
.final-trust { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-tertiary); margin-top: 16px; letter-spacing: 0.03em; }

/* ═══════════════════════════════════════
   STICKY MOBILE CTA
   ═══════════════════════════════════════ */
.sticky-cta {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(8,8,13,0.94); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border); display: flex; align-items: center; gap: 12px;
  transform: translateY(100%); transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
}
.sticky-cta.visible { transform: translateY(0); }
.sticky-icon { width: 36px; height: 36px; border-radius: 8px; flex-shrink: 0; }
.sticky-text { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.sticky-name { font-family: var(--font-display); font-weight: 700; font-size: 0.85rem; color: var(--text); line-height: 1.2; }
.sticky-sub { font-size: 0.65rem; color: var(--text-secondary); line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sticky-btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 20px; background: var(--platinum); color: var(--platinum-text); border: 1px solid var(--platinum-stroke); font-family: var(--font-display); font-weight: 700; font-size: 0.82rem; border-radius: 100px; white-space: nowrap; line-height: 1; }
.sticky-btn svg { flex-shrink: 0; vertical-align: middle; }

/* ═══════════════════════════════════════
   REVEAL SYSTEM
   ═══════════════════════════════════════ */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s cubic-bezier(0.25,0.46,0.45,0.94), transform 0.6s cubic-bezier(0.25,0.46,0.45,0.94); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-stagger > .reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 0.24s; }

/* ═══════════════════════════════════════
   TABLET — min-width: 640px
   ═══════════════════════════════════════ */
@media (min-width: 640px) {
  :root { --section-pad: 64px; }
  .container { padding: 0 24px; }
  h1 { font-size: 2.6rem; }
  h2 { font-size: 1.8rem; }
  .section-header { margin-bottom: 32px; }

  .hero { padding-top: calc(60px + 56px); }
  .hero-sub { font-size: 1.05rem; }
  .hero-actions { flex-direction: row; justify-content: center; }
  .btn-primary, .btn-ghost { width: auto; }

  .laurel-badge { max-width: 420px; }
  .reviews-grid { grid-template-columns: 1fr 1fr; max-width: 680px; }

  .pain-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }

  .ai-grid { flex-direction: column; gap: 32px; }

  .features-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  .feature-tall { grid-row: span 2; }
  .feature-card { padding: 28px 24px; }

  .calc-inputs { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
  .builder-card { padding: 28px 24px; margin: 0 auto; }
  .builder-ctas { flex-direction: row; }
  .builder-ctas .btn-primary, .builder-ctas .btn-secondary { width: auto; flex: 1; }

  .lifestyle-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }

  .resources-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
}

/* ═══════════════════════════════════════
   DESKTOP — min-width: 1024px
   ═══════════════════════════════════════ */
@media (min-width: 1024px) {
  :root { --section-pad: clamp(80px, 10vw, 130px); --radius: 16px; }
  h1 { font-size: 6rem; letter-spacing: -0.045em; }
  h2 { font-size: 2.4rem; letter-spacing: -0.035em; }
  h3 { font-size: 1.2rem; }
  .section-header { margin-bottom: 40px; }

  /* Hero — centered on desktop too */
  .hero { padding: calc(60px + 72px) 0 48px; }
  .hero-grid { flex-direction: column; text-align: center; gap: 24px; align-items: center; }
  .hero-text { max-width: 100%; flex-shrink: 0; }
  .hero-phone-wrap { width: 100%; max-width: 1000px; }
  .hero-phone img, .hero-phone picture img { max-height: none; }
  .hero-actions { justify-content: center; flex-direction: row-reverse; }
  .hero-actions .btn-primary, .hero-actions .btn-ghost { flex: 1; max-width: none; }
  .hero-tagline { font-size: 1.1rem; }
  .hero h1 { font-size: clamp(2.2rem, 3vw, 3rem); white-space: nowrap; }
  .hero-glow { top: -20%; left: auto; right: -10%; width: 55%; height: 120%; transform: none; background: radial-gradient(ellipse at 60% 40%, rgba(255,255,255,0.04) 0%, transparent 65%); }

  /* Buttons hover */
  .btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-ambient); }
  .btn-ghost:hover { border-color: var(--off-white); color: var(--off-white); }
  .btn-secondary:hover { background: var(--surface-overlay); }

  /* Social proof */
  .reviews-grid { grid-template-columns: repeat(2, 1fr); max-width: 900px; }
  .review-card:hover { border-color: var(--border-accent); }

  /* AI showcase — chat card sits between reviews (900) and pain grid (~1112) */
  .chat-phone-frame { max-width: 1000px; margin: 0 auto; }

  /* Features */
  .features-grid { grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
  .feature-card { padding: 32px 28px; transition: border-color 0.3s, transform 0.3s; }
  .feature-card:hover { border-color: var(--border-accent); transform: translateY(-3px); }

  /* Categories */
  .category-tag { font-size: 0.82rem; padding: 10px 20px; }
  .category-tag:hover { border-color: var(--border-accent); color: var(--text); }

  /* Builder */
  .builder-card { padding: 36px 32px; margin: 0 auto; }

  /* Resources */
  .resource-card { padding: 28px 24px; transition: border-color 0.3s, transform 0.3s; }
  .resource-card:hover { border-color: var(--border-accent); transform: translateY(-3px); }
  .resource-card .arrow { transition: transform 0.25s; }
  .resource-card:hover .arrow { transform: translateX(5px); }

  /* FAQ */
  .faq-card summary { font-size: 1.05rem; }
  .faq-card:hover { border-color: var(--border-accent); }
  .faq-card summary:hover { color: var(--off-white); }

  /* CTA */
  .btn-glow { width: auto; max-width: none; }
  .btn-glow:hover { transform: translateY(-2px); }
  .final-cta-glow { width: 500px; height: 500px; }

  /* Sticky → hide on desktop */
  .sticky-cta { display: none !important; }

  /* Compound strip */
  .compound-strip { padding: 32px 0; gap: 10px; }
  .compound-strip::before, .compound-strip::after { width: 100px; }
  .compound-pill { padding: 7px 16px; font-size: 0.78rem; }
  .compound-pill:hover { color: var(--text-secondary); border-color: rgba(255,255,255,0.12); }

  /* Lifestyle hover */
  .lifestyle-card { transition: border-color 0.3s, transform 0.3s; }
  .lifestyle-card:hover { border-color: var(--border-accent); transform: translateY(-3px); }
}