:root {
  --bg: #07110d;
  --bg-2: #0c1a14;
  --card: #101f18;
  --line: #1c3328;
  --text: #eef5f1;
  --muted: #9bb3a6;
  --accent: #2ee59d;
  --accent-ink: #04170f;
  --glow: rgba(46, 229, 157, 0.18);
  --radius: 20px;
  --max: 1120px;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f6faf7;
  --bg-2: #ecf4ef;
  --card: #ffffff;
  --line: #d5e4db;
  --text: #0b1d15;
  --muted: #4d665a;
  --accent: #0a9f66;
  --accent-ink: #ffffff;
  --glow: rgba(10, 159, 102, 0.14);
  color-scheme: light;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6faf7;
    --bg-2: #ecf4ef;
    --card: #ffffff;
    --line: #d5e4db;
    --text: #0b1d15;
    --muted: #4d665a;
    --accent: #0a9f66;
    --accent-ink: #ffffff;
    --glow: rgba(10, 159, 102, 0.14);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Cabecera */
.top {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; text-decoration: none; letter-spacing: -0.01em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav { display: flex; gap: 22px; align-items: center; font-size: 15px; color: var(--muted); }
.nav a { text-decoration: none; }
.nav a:hover { color: var(--text); }
.lang { border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: 13px; }
@media (max-width: 760px) { .nav .hide-sm { display: none; } .nav { gap: 14px; } }

/* Botones */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 22px; border-radius: 999px; font-weight: 650; font-size: 16px;
  text-decoration: none; border: 1px solid var(--line); background: var(--card);
}
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; box-shadow: 0 8px 30px var(--glow); }
.btn:hover { transform: translateY(-1px); }

/* Héroe */
.hero { padding: 84px 0 40px; text-align: center; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% 0 auto; height: 560px; z-index: -1;
  background: radial-gradient(60% 60% at 50% 0%, var(--glow), transparent 70%);
}
.eyebrow { color: var(--accent); font-weight: 650; font-size: 14px; letter-spacing: 0.12em; text-transform: uppercase; }
h1 { font-size: clamp(36px, 6vw, 64px); line-height: 1.05; letter-spacing: -0.035em; margin: 14px auto 18px; max-width: 18ch; }
.lead { color: var(--muted); font-size: clamp(18px, 2.2vw, 21px); max-width: 640px; margin: 0 auto 30px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.chips { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 26px; color: var(--muted); font-size: 14px; }
.chips span { border: 1px solid var(--line); border-radius: 999px; padding: 5px 13px; background: var(--bg-2); }

/* Dispositivos */
.stage { margin: 56px auto 0; display: flex; align-items: flex-end; justify-content: center; gap: 28px; }
.shot { border: 1px solid var(--line); background: var(--card); box-shadow: 0 30px 80px rgba(0,0,0,0.45); overflow: hidden; }
.shot img { width: 100%; height: auto; }
.shot.phone { width: 230px; border-radius: 34px; padding: 8px; flex: none; }
.shot.phone img { border-radius: 26px; }
.shot.tv { width: 560px; border-radius: 16px; padding: 8px; }
.shot.tv img { border-radius: 9px; }
.shot.mac { width: 620px; border-radius: 12px; }
.shot figcaption { padding: 10px 14px; font-size: 13px; color: var(--muted); text-align: center; }
@media (max-width: 860px) { .stage { flex-direction: column; align-items: center; } .shot.tv, .shot.mac { width: 100%; } }

/* Secciones */
section { padding: 84px 0; }
section.alt { background: var(--bg-2); border-block: 1px solid var(--line); }
h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -0.03em; line-height: 1.1; margin: 0 0 14px; }
.sub { color: var(--muted); max-width: 640px; margin: 0 0 44px; font-size: 18px; }
.center { text-align: center; } .center .sub { margin-inline: auto; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 580px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 12px 0 6px; font-size: 19px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.ico { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--glow); font-size: 21px; }

.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 28px; } }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.ticks li { padding-left: 28px; position: relative; color: var(--muted); }
.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 800; }
.ticks b { color: var(--text); }

.platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 900px) { .platforms { grid-template-columns: repeat(2, 1fr); } }
.plat { text-align: center; }
.plat .big { font-size: 34px; }
.plat small { color: var(--muted); display: block; margin-top: 4px; }

.formats { display: flex; flex-wrap: wrap; gap: 10px; }
.formats span { border: 1px solid var(--line); background: var(--card); border-radius: 12px; padding: 8px 14px; font-size: 14.5px; font-weight: 600; }

.notice { border: 1px solid var(--line); background: var(--card); border-radius: var(--radius); padding: 22px 26px; color: var(--muted); font-size: 15.5px; }
.notice b { color: var(--text); }

/* Cifrador */
.tool { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
textarea {
  width: 100%; min-height: 220px; resize: vertical;
  background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 14px;
  padding: 14px; font: 14px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 14px; }
.keybox { font: 600 22px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.04em; color: var(--accent); word-break: break-all; }
.msg { color: var(--muted); font-size: 14.5px; }
.err { color: #ff8b8b; }
[hidden] { display: none !important; }
button.btn { cursor: pointer; font-family: inherit; color: inherit; }
button.btn.primary { color: var(--accent-ink); }
button.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Pie */
footer { border-top: 1px solid var(--line); padding: 44px 0 56px; color: var(--muted); font-size: 14.5px; }
footer .cols { display: flex; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
footer a { text-decoration: none; } footer a:hover { color: var(--text); }
footer .links { display: flex; gap: 20px; flex-wrap: wrap; }

/* Galería */
.gallery { display: grid; gap: 22px; grid-template-columns: repeat(2, 1fr); align-items: start; }
@media (max-width: 760px) { .gallery { grid-template-columns: 1fr; } }
.shot.wide { border-radius: 14px; padding: 0; width: 100%; margin: 0; }
.shot.wide img { border-radius: 14px 14px 0 0; }
.phones { display: flex; gap: 22px; justify-content: center; align-items: flex-start; }
.phones .shot.phone { width: 46%; max-width: 230px; margin: 0; }
.credit { color: var(--muted); font-size: 13.5px; text-align: center; margin: 30px auto 0; max-width: 760px; }
.credit a { text-decoration: underline; }
.shot.mac { width: min(720px, 100%); }