/* baibiketrainer — landing. Mismos colores que la app. */
:root {
  --bg: #0f1216;
  --bg2: #12161c;
  --card: #181d24;
  --card2: #1f2530;
  --line: #2a3140;
  --text: #e8ecf2;
  --muted: #9aa3b4;
  --accent: #ff6a1a;
  --accent2: #ff8a45;
  --ok: #34c77b;
  --radius: 16px;
  --wrap: 1140px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent2); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.2rem, 5.2vw, 3.7rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 99; background: var(--accent); color: #111; padding: 8px 14px; border-radius: 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- Marca ---------- */
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; font-size: 1.3rem; letter-spacing: -.01em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.brand b { color: var(--accent); font-weight: 800; }

/* ---------- Cabecera ---------- */
.top { position: sticky; top: 0; z-index: 10; background: rgba(15, 18, 22, .86); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 18px; height: 64px; }
.top nav { display: flex; gap: 22px; margin-left: auto; }
.top nav a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.top nav a:hover { color: var(--text); }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang a, .lang span { padding: 6px 11px; font-size: .8rem; font-weight: 700; letter-spacing: .04em; text-decoration: none; color: var(--muted); }
.lang span { background: var(--accent); color: #111; }
.lang a:hover { color: var(--text); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 24px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  text-decoration: none; border: 1px solid var(--line); color: var(--text); background: var(--card2);
  transition: transform .15s, background .15s, border-color .15s;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #111; }
.btn.primary:hover { background: var(--accent2); border-color: var(--accent2); transform: translateY(-1px); }
.btn.small { min-height: 38px; padding: 0 16px; font-size: .9rem; }
.btn .arrow { transition: transform .15s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Portada ---------- */
.hero { position: relative; padding: 64px 0 40px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto auto; width: 70vw; height: 70vw; max-width: 900px; max-height: 900px;
  background: radial-gradient(closest-side, rgba(255, 106, 26, .18), transparent 70%); pointer-events: none;
}
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 48px; align-items: center; }
.eyebrow { display: inline-block; color: var(--accent2); font-weight: 700; font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.lead { font-size: 1.18rem; color: #c9d0dc; max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 16px; }
.req { font-size: .92rem; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0; margin: 0; list-style: none; }
.req li::before { content: "✓ "; color: var(--ok); font-weight: 700; }

.shots { position: relative; padding-bottom: 40px; }
.pc {
  border-radius: 12px; overflow: hidden; border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55), 0 0 0 6px #1a1f27;
}
.phone {
  border-radius: 30px; overflow: hidden; border: 6px solid #232a35; background: #000;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .6);
}
.shots .phone { position: absolute; width: 31%; right: -14px; bottom: 0; }

/* ---------- Secciones ---------- */
section { padding: 88px 0; }
.head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.head p { color: var(--muted); font-size: 1.1rem; }

.feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; margin-bottom: 96px; }
.feature:last-child { margin-bottom: 0; }
.feature.rev .copy { order: 2; }
.feature .art { display: flex; justify-content: center; gap: 20px; }
.feature .art .phone { width: 46%; max-width: 290px; }
.feature .art .phone + .phone { margin-top: 56px; }
.feature .tag { color: var(--accent2); font-weight: 700; font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; }
.feature p { color: #c9d0dc; }
.ticks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.ticks li { padding-left: 30px; position: relative; color: #c9d0dc; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: .3em; width: 18px; height: 18px; border-radius: 50%;
  background: rgba(255, 106, 26, .16) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3.2 3L15 7' fill='none' stroke='%23ff6a1a' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat;
}

/* Más funciones */
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { font-size: 1.08rem; margin-bottom: .35em; }
.card p { color: var(--muted); font-size: .97rem; margin: 0; }
.ico { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: rgba(255, 106, 26, .14); margin-bottom: 14px; }
.ico svg { width: 22px; height: 22px; fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Cómo funciona */
.alt { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; counter-increment: step; }
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: #111; font-weight: 800; font-size: 1.1rem; margin-bottom: 14px;
}
.steps p { color: var(--muted); margin: 0; font-size: .97rem; }


/* Llamada final */
.final { text-align: center; padding: 96px 0; background: radial-gradient(ellipse at center, rgba(255, 106, 26, .16), transparent 65%); }
.final p { color: var(--muted); font-size: 1.1rem; }
.final .cta { justify-content: center; }

footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: .9rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }
footer .brand { font-size: 1.05rem; }
footer .brand img { width: 26px; height: 26px; border-radius: 7px; }

/* ---------- Pantallas pequeñas ---------- */
@media (max-width: 980px) {
  .hero { padding-top: 40px; }
  .hero .wrap { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .shots { max-width: 640px; margin: 0 auto; width: 100%; }
  .feature, .feature.rev { grid-template-columns: minmax(0, 1fr); gap: 32px; margin-bottom: 72px; }
  .feature.rev .copy { order: 0; }
}
@media (max-width: 760px) {
  .top nav { display: none; }
  .top .lang { margin-left: auto; }
  .top .btn.small { padding: 0 14px; }
  section { padding: 64px 0; }
  .steps, .grid { grid-template-columns: minmax(0, 1fr); }
  .shots .phone { right: -6px; border-width: 4px; border-radius: 20px; }
  .lead { font-size: 1.08rem; }
}
@media (max-width: 420px) {
  .brand { font-size: 1.12rem; }
  .brand img { width: 30px; height: 30px; }
  .top .btn.small .long { display: none; }
  .cta .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .btn .arrow { transition: none; }
}

.feature h3 { font-size: clamp(1.55rem, 2.7vw, 2.1rem); font-weight: 800; margin-top: .3em; }
@media (max-width: 420px) {
  .top .wrap { gap: 10px; }
}
@media (max-width: 370px) {
  .top .wrap { padding: 0 12px; gap: 8px; }
  .brand { font-size: 1.02rem; gap: 6px; }
  .brand img { width: 24px; height: 24px; border-radius: 6px; }
  .lang a, .lang span { padding: 5px 8px; }
  .top .btn.small { padding: 0 12px; min-height: 34px; }
}