/* ─────────────────────────────────────────────────────────────
   Gym Trainer — promotional site
   Brand: near-black #0A0B0D · lime accent #D6FF3D
   ───────────────────────────────────────────────────────────── */

:root {
  --bg:        #0A0B0D;
  --surface:   #13141A;
  --elevated:  #1B1D26;
  --hairline:  rgba(255, 255, 255, 0.07);
  --hairline2: rgba(255, 255, 255, 0.12);
  --text:      #FFFFFF;
  --text2:     rgba(255, 255, 255, 0.62);
  --text3:     rgba(255, 255, 255, 0.38);
  --accent:    #D6FF3D;
  --accent-ink:#0A0B0D;
  --success:   #3DDC97;
  --ring:      rgba(214, 255, 61, 0.18);

  --maxw: 1120px;
  --radius: 18px;
  --radius-sm: 12px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3 { line-height: 1.1; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 800; }
h3 { font-size: 1.18rem; font-weight: 700; }

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.lead { color: var(--text2); font-size: 1.15rem; max-width: 56ch; }

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

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { box-shadow: 0 8px 30px var(--ring); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--hairline2); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ── Header / nav ───────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 13, 0.72);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--hairline);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: -0.01em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { color: var(--text2); font-size: 0.95rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta { padding: 9px 18px; font-size: 0.9rem; }

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 40px;
}
.hero::before {
  content: "";
  position: absolute;
  top: -30%; left: 50%;
  width: 900px; height: 900px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(214,255,61,0.10) 0%, transparent 60%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero-cta { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-note { margin-top: 20px; color: var(--text3); font-size: 0.88rem; }

.phone {
  position: relative;
  margin: 0 auto;
  width: 100%;
  max-width: 380px;
}
.phone img {
  width: 100%;
  border-radius: 38px;
  border: 1px solid var(--hairline2);
  box-shadow: 0 40px 90px rgba(0,0,0,0.6);
}

/* ── Stat strip ─────────────────────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 72px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
}
.stat .num { font-size: 2rem; font-weight: 800; letter-spacing: -0.02em; }
.stat .num .accent { color: var(--accent); }
.stat .label { color: var(--text3); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; margin-top: 4px; }

/* ── Sections ───────────────────────────────────────────────── */
section { padding: 90px 0; }
.section-head { max-width: 60ch; margin-bottom: 56px; }
.section-head .lead { margin-top: 16px; }

/* ── Feature grid ───────────────────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.card:hover { border-color: var(--hairline2); transform: translateY(-3px); }
.card .ic {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--ring);
  color: var(--accent);
  margin-bottom: 18px;
}
.card .ic svg { width: 24px; height: 24px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--text2); font-size: 0.96rem; margin: 0; }

/* ── Screenshot gallery ─────────────────────────────────────── */
.gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px 22px;
  padding: 8px 0;
}
.gallery .shot {
  flex: 0 0 200px;
  width: 200px;
  min-width: 0; /* Safari: stop img intrinsic size from forcing 1 per row */
  margin: 0;
  text-align: center;
  transition: transform 0.25s ease;
}
.gallery .shot:hover { transform: translateY(-4px); }
.gallery .shot img {
  width: 100%;
  display: block;
  border-radius: 26px;
  border: 1px solid var(--hairline2);
  background: var(--surface);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}
.gallery .shot figcaption {
  margin-top: 14px;
  color: var(--text2);
  font-size: 0.85rem;
  font-weight: 500;
}
@media (max-width: 880px) {
  .gallery .shot { flex-basis: 150px; width: 150px; }
}

/* ── Languages ──────────────────────────────────────────────── */
.langs { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.chip {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--hairline2);
  font-weight: 600;
  font-size: 0.95rem;
}

/* ── CTA band ───────────────────────────────────────────────── */
.cta-band {
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(214,255,61,0.12), transparent 55%),
    var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 28px;
  padding: 64px 32px;
}
.cta-band .btn { margin-top: 28px; }

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 48px 0;
  color: var(--text3);
  font-size: 0.9rem;
}
.footer-grid { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text2); }
.footer-links a:hover { color: var(--accent); }

/* ── Legal / privacy page ───────────────────────────────────── */
.legal { padding: 64px 0 96px; }
.legal .container { max-width: 800px; }
.legal h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.legal .updated { color: var(--text3); font-size: 0.9rem; margin-top: 12px; }
.legal h2 { font-size: 1.4rem; margin-top: 48px; padding-top: 8px; }
.legal h3 { margin-top: 28px; }
.legal p, .legal li { color: var(--text2); }
.legal a { color: var(--accent); }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 8px; }
.legal .toc {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin: 36px 0;
}
.legal .toc strong { display: block; margin-bottom: 12px; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text3); }
.legal .toc ol { margin: 0; padding-left: 20px; columns: 2; gap: 24px; }
.legal .toc a { color: var(--text2); }
.legal .toc a:hover { color: var(--accent); }
.callout {
  background: var(--ring);
  border: 1px solid rgba(214,255,61,0.25);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin: 28px 0;
  color: var(--text);
}
.callout strong { color: var(--accent); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding-top: 64px; }
  .phone { max-width: 320px; order: -1; }
  .features { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .nav-links a:not(.nav-cta) { display: none; }
  .legal .toc ol { columns: 1; }
}