/* Musclebot website: dark only, like the app. Brand yellow #E9F40A with black text on it. */
:root {
  --brand: #E9F40A;
  --on-brand: #000000;
  --bg: #0A0A0B;
  --surface: #1C1C1E;
  --surface-2: #2C2C2E;
  --text: #F5F5F7;
  --text-2: #A1A1A6;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 22px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* Navigation */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(10, 10, 11, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 19px; }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav-links { display: flex; gap: 22px; font-size: 15px; }
.nav-links a { color: var(--text-2); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  background: linear-gradient(180deg, rgba(233, 244, 10, 0.16) 0%, rgba(233, 244, 10, 0) 70%);
  padding: 72px 0 40px;
}
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.eyebrow { color: var(--brand); font-weight: 600; font-size: 15px; letter-spacing: 0.02em; margin: 0 0 12px; }
h1 { font-size: clamp(40px, 6vw, 64px); line-height: 1.05; letter-spacing: -0.02em; margin: 0 0 20px; }
.lead { font-size: 20px; color: var(--text-2); margin: 0 0 28px; max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.button {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 24px; border-radius: 999px;
  background: var(--brand); color: var(--on-brand); font-weight: 600;
}
.button:hover { text-decoration: none; filter: brightness(1.05); }
.button.secondary { background: var(--surface); color: var(--text); }
.note { color: var(--text-2); font-size: 14px; }

/* AI */
.ai-badge {
  display: inline-block; margin-right: 6px; padding: 3px 10px; border-radius: 999px;
  background: rgba(233, 244, 10, 0.14); border: 1px solid rgba(233, 244, 10, 0.4);
  color: var(--brand); font-weight: 700; font-size: 13px; letter-spacing: 0.02em;
}
.feature.ai { background: linear-gradient(160deg, rgba(233, 244, 10, 0.12) 0%, var(--surface) 55%); border: 1px solid rgba(233, 244, 10, 0.18); }
.ai-note { margin-top: 20px; max-width: 52em; }

/* Phones */
.phone {
  width: 100%; height: auto; max-width: 300px; margin: 0 auto; display: block;
  border-radius: 40px; border: 8px solid #2A2A2D;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--line);
}

/* Sections */
section { padding: 72px 0; }
h2 { font-size: clamp(30px, 4vw, 44px); line-height: 1.1; letter-spacing: -0.015em; margin: 0 0 14px; }
.section-lead { color: var(--text-2); font-size: 19px; margin: 0 0 40px; max-width: 40em; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { background: var(--surface); border-radius: var(--radius); padding: 24px; }
.step-number {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--brand); color: var(--on-brand); font-weight: 700; margin-bottom: 14px;
}
.step h3 { margin: 0 0 6px; font-size: 19px; }
.step p { margin: 0; color: var(--text-2); }
.quote { color: var(--text); font-style: italic; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { background: var(--surface); border-radius: var(--radius); padding: 24px; }
.feature .icon { font-size: 26px; margin-bottom: 10px; }
.feature h3 { margin: 0 0 6px; font-size: 18px; }
.feature p { margin: 0; color: var(--text-2); font-size: 16px; }

.gallery {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(220px, 260px);
  gap: 20px; overflow-x: auto; padding: 10px 4px 24px; scroll-snap-type: x mandatory;
}
.gallery figure { margin: 0; scroll-snap-align: start; }
.gallery img { width: 100%; height: auto; border-radius: 28px; border: 6px solid #2A2A2D; display: block; }
.gallery figcaption { color: var(--text-2); font-size: 14px; text-align: center; margin-top: 10px; }

.privacy {
  background: var(--surface); border-radius: 32px; padding: 48px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center;
}
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; }
.checks li::before { content: "✓"; color: var(--brand); font-weight: 700; }

.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.plan { background: var(--surface); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 8px; }
.plan.highlight { outline: 2px solid var(--brand); }
.plan h3 { margin: 0; font-size: 18px; }
.price { font-size: 32px; font-weight: 700; letter-spacing: -0.01em; }
.price small { font-size: 15px; color: var(--text-2); font-weight: 500; }
.plan p { margin: 0; color: var(--text-2); font-size: 15px; }
.badge {
  align-self: flex-start; background: var(--brand); color: var(--on-brand);
  font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px;
}

.faq { display: grid; gap: 12px; max-width: 780px; }
details { background: var(--surface); border-radius: 18px; padding: 18px 22px; }
summary { cursor: pointer; font-weight: 600; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; color: var(--text-2); }
details[open] summary::after { content: "–"; }
details p { color: var(--text-2); margin: 12px 0 0; }

footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--text-2); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; }
footer nav { display: flex; gap: 20px; }

/* Text pages: support and privacy */
.page { padding: 56px 0 72px; }
.page .wrap { max-width: 760px; }
.page h1 { font-size: clamp(34px, 5vw, 48px); }
.page h2 { font-size: 24px; margin: 36px 0 10px; }
.page p, .page li { color: var(--text-2); }
.page strong { color: var(--text); }
.contact {
  background: var(--surface); border-radius: var(--radius); padding: 24px;
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; margin: 24px 0;
}

@media (max-width: 860px) {
  .hero { padding-top: 48px; }
  .hero .wrap, .privacy { grid-template-columns: 1fr; }
  .steps, .features { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr 1fr; }
  .privacy { padding: 32px 24px; }
  .nav-links { gap: 16px; }
}

@media (max-width: 520px) {
  .plans { grid-template-columns: 1fr; }
  .nav-links a:not(:last-child) { display: none; }
  .lead { font-size: 18px; }
}