/* Airpic — sistema "galería": papel cálido claro para leer y confiar,
   marcos oscuros de sala de exposición donde vive la imagen, verde de
   revelado como acento. Tema único claro, comprometido. */

:root {
  --ground: #f6f5ef;
  --ground-2: #edebe1;
  --surface: #ffffff;
  --surface-2: #f4f2ea;
  --line: #e2dfd2;
  --line-strong: #c9c4b2;
  --ink: #171f19;
  --ink-soft: #49564b;
  --ink-faint: #79857a;
  --accent: #16a34a;         /* verde para texto y enlaces (AA sobre claro) */
  --accent-bright: #4ade80;  /* verde fósforo para rellenos y botones */
  --accent-deep: #15803d;
  --accent-ink: #06130a;
  --accent-soft: rgba(22, 163, 74, 0.1);
  --amber: #96660a;
  --amber-soft: rgba(232, 182, 76, 0.2);
  --err: #b3401f;
  --err-soft: rgba(240, 135, 111, 0.15);
  --shadow: 0 1px 2px rgba(23, 31, 25, 0.06), 0 12px 32px rgba(23, 31, 25, 0.09);
  --glow: 0 0 0 1px rgba(22, 163, 74, 0.22), 0 6px 24px rgba(22, 163, 74, 0.12);
  --radius: 14px;
  /* galería oscura: los marcos donde vive la imagen */
  --frame: #0b110d;
  --frame-line: #29392c;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(1100px 550px at 88% -8%, rgba(74, 222, 128, 0.09), transparent 60%),
    radial-gradient(900px 500px at -8% 28%, rgba(232, 182, 76, 0.08), transparent 55%),
    var(--ground);
  color: var(--ink);
  font-family: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.62;
}
h1, h2, h3 { font-family: "Syne", "Instrument Sans", sans-serif; line-height: 1.06; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
p { margin: 0 0 14px; }
a { color: var(--accent-deep); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: "Spline Sans Mono", monospace; }

/* ---------- cabecera ---------- */
header.site {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(246, 245, 239, 0.86);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 16px; padding: 14px 0; }
.brand { font-family: "Syne", sans-serif; font-weight: 800; font-size: 1.45rem; color: var(--ink); text-decoration: none; letter-spacing: -0.02em; }
.brand em { color: var(--accent); font-style: normal; }
.beta { background: var(--amber-soft); color: var(--amber); border: 1px solid rgba(150, 102, 10, 0.3); border-radius: 999px; padding: 2px 11px; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; font-family: "Spline Sans Mono", monospace; }
.nav .links { display: flex; gap: 20px; margin-left: auto; align-items: center; }
.nav .links a { color: var(--ink-soft); text-decoration: none; font-size: 0.92rem; }
.nav .links a:hover { color: var(--accent-deep); }
.lang { border: 1px solid var(--line-strong); border-radius: 999px; padding: 3px 12px; font-size: 0.8rem; font-family: "Spline Sans Mono", monospace; }

/* ---------- lecturas técnicas (marca de la casa) ---------- */
.readout { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-top: 22px; }
.readout span {
  font-family: "Spline Sans Mono", monospace; font-size: 0.74rem; letter-spacing: 0.05em;
  color: var(--ink-soft); background: var(--surface); border: 1px solid var(--line);
  border-radius: 6px; padding: 5px 11px;
}
.readout b { color: var(--accent-deep); font-weight: 600; }
.claims { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-top: 22px; }
.claim {
  font-family: "Spline Sans Mono", monospace; font-size: 0.74rem; letter-spacing: 0.05em;
  color: var(--ink-soft); background: var(--surface); border: 1px solid var(--line);
  border-radius: 6px; padding: 5px 11px;
}
.claim b { color: var(--accent-deep); font-weight: 600; }

/* ---------- hero ---------- */
.hero { padding: 64px 0 40px; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 52px; align-items: center; }
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; padding-top: 40px; gap: 34px; } }
.hero h1 { font-size: clamp(2.3rem, 5.2vw, 3.6rem); font-weight: 800; margin-bottom: 18px; }
.hero h1 .glow { color: var(--accent-deep); text-shadow: 0 0 24px rgba(34, 197, 94, 0.35); }
.hero .sub { font-size: 1.12rem; color: var(--ink-soft); max-width: 46ch; }
.cta-row { margin-top: 30px; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }

.btn {
  display: inline-block; border: none; cursor: pointer; text-decoration: none;
  font-family: "Instrument Sans", sans-serif; font-size: 1rem; font-weight: 700;
  background: var(--accent-bright); color: var(--accent-ink);
  padding: 14px 28px; border-radius: 10px; box-shadow: var(--glow);
  transition: transform 0.15s, background 0.15s;
}
.btn:hover { background: #34d374; transform: translateY(-1px); }
.btn:focus-visible, a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line-strong); box-shadow: none; }
.btn.ghost:hover { background: var(--surface-2); }
.btn[disabled] { opacity: 0.45; cursor: not-allowed; transform: none; }

/* ---------- comparador: marco de galería oscura (protagonista) ---------- */
.compare {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--frame-line); box-shadow: var(--shadow);
  aspect-ratio: 1 / 1.02; user-select: none; touch-action: none; background: var(--frame);
}
.compare::after {
  /* marco de fotograma */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.09); border-radius: var(--radius);
}
.compare img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.compare .after-clip { position: absolute; inset: 0; overflow: hidden; }
.compare .divider { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--accent-bright); box-shadow: 0 0 14px rgba(74, 222, 128, 0.75); }
.compare .knob {
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent-bright); color: var(--accent-ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; box-shadow: 0 2px 14px rgba(0, 0, 0, 0.45); font-size: 0.95rem;
}
.compare .tag {
  position: absolute; bottom: 12px; font-family: "Spline Sans Mono", monospace;
  background: rgba(6, 12, 8, 0.78); color: #eaf3ea; font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.12em; padding: 4px 11px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.14);
}
.compare .tag.l { left: 12px; } .compare .tag.r { right: 12px; color: var(--accent-bright); border-color: rgba(74, 222, 128, 0.4); }
@media (prefers-reduced-motion: no-preference) {
  .compare.reveal .divider, .compare.reveal .knob { animation: sweep 1.6s cubic-bezier(0.6, 0, 0.2, 1) 0.3s both; }
  .compare.reveal .after-clip { animation: sweep-clip 1.6s cubic-bezier(0.6, 0, 0.2, 1) 0.3s both; }
  @keyframes sweep { from { left: 96%; } to { left: 50%; } }
  @keyframes sweep-clip { from { clip-path: inset(0 0 0 96%); } to { clip-path: inset(0 0 0 50%); } }
}

/* ---------- secciones ---------- */
section.block { padding: 56px 0; }
section.block.alt { background: var(--ground-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.eyebrow { font-family: "Spline Sans Mono", monospace; font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent-deep); font-weight: 600; }
section.block h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800; margin: 8px 0 16px; }

/* franja de datos */
.statstrip { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin: 36px 0 0; }
.statstrip div { background: var(--surface); padding: 18px 20px; }
.statstrip .n { font-family: "Syne", sans-serif; font-weight: 800; font-size: 1.6rem; color: var(--accent-deep); display: block; font-variant-numeric: tabular-nums; }
.statstrip .l { font-size: 0.8rem; color: var(--ink-faint); font-family: "Spline Sans Mono", monospace; }

/* ---------- aplicación ---------- */
.app { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.drop {
  border: 2px dashed var(--line-strong); border-radius: 12px; padding: 46px 24px;
  text-align: center; color: var(--ink-soft); cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  background: var(--surface-2);
}
.drop.hover, .drop:hover { border-color: var(--accent); background: var(--accent-soft); box-shadow: var(--glow); }
.drop b { color: var(--ink); font-size: 1.05rem; }
.drop .mono { font-size: 0.75rem; color: var(--ink-faint); display: block; margin-top: 10px; letter-spacing: 0.05em; }
.filemeta { display: flex; flex-wrap: wrap; gap: 10px 24px; align-items: center; margin-top: 18px; font-size: 0.92rem; color: var(--ink-soft); }
.filemeta b { color: var(--ink); }

.controls { margin-top: 18px; display: grid; gap: 12px; }
.opts { display: flex; gap: 10px; flex-wrap: wrap; }
.opt { border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink); border-radius: 10px; padding: 10px 18px; cursor: pointer; font-family: inherit; font-size: 0.95rem; font-weight: 600; }
.opt[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-deep); }
.inline-row { display: none; gap: 10px; align-items: center; flex-wrap: wrap; font-size: 0.95rem; }
.inline-row.on { display: flex; }
.inline-row input, .inline-row select { padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); color: var(--ink); font-family: "Spline Sans Mono", monospace; font-size: 0.95rem; }
.inline-row input[type="number"] { width: 90px; }
.verdict { font-size: 0.88rem; padding: 8px 14px; border-radius: 8px; display: none; font-family: "Spline Sans Mono", monospace; }
.verdict.on { display: inline-block; }
.verdict.good { background: var(--accent-soft); color: var(--accent-deep); }
.verdict.meh { background: var(--amber-soft); color: var(--amber); }

.progress { margin-top: 22px; display: none; }
.progress.on { display: block; }
.bar { height: 12px; border-radius: 999px; background: var(--ground-2); border: 1px solid var(--line); overflow: hidden; }
.bar i { display: block; height: 100%; width: 0%; border-radius: 999px; transition: width 0.45s;
  background: linear-gradient(90deg, var(--accent-deep), var(--accent-bright));
  box-shadow: 0 0 14px rgba(34, 197, 94, 0.4); }
.progress .lab { font-size: 0.85rem; color: var(--ink-soft); margin-top: 10px; font-family: "Spline Sans Mono", monospace; }

.result { margin-top: 22px; display: none; gap: 16px; align-items: center; flex-wrap: wrap; }
.result.on { display: flex; }
.result .dims { font-size: 0.95rem; color: var(--ink-soft); font-family: "Spline Sans Mono", monospace; }
.result .dims b { color: var(--accent-deep); }
.note-borrado { font-size: 0.78rem; color: var(--ink-faint); margin-top: 12px; }
.error { margin-top: 18px; display: none; background: var(--err-soft); color: var(--err); border: 1px solid rgba(179, 64, 31, 0.3); border-radius: 10px; padding: 12px 16px; font-size: 0.92rem; }
.error.on { display: block; }

/* ---------- pasos / privacidad ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 14px; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.step h3 { font-size: 1.02rem; margin: 6px 0 8px; }
.step p { font-size: 0.9rem; color: var(--ink-soft); margin: 0; }
.step .n { font-family: "Spline Sans Mono", monospace; color: var(--amber); font-size: 0.8rem; letter-spacing: 0.15em; }

/* ---------- catálogo ---------- */
.toolgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; margin-top: 26px; }
.toolcard {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; text-decoration: none; color: var(--ink); display: block; position: relative;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
a.toolcard:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--glow); }
.toolcard .icon { font-size: 1.6rem; display: block; margin-bottom: 10px; color: var(--accent-deep); }
.toolcard h3 { font-size: 1.06rem; margin: 0 0 5px; }
.toolcard p { font-size: 0.87rem; color: var(--ink-soft); margin: 0; }
.toolcard .go { position: absolute; top: 18px; right: 18px; color: var(--ink-faint); font-family: "Spline Sans Mono", monospace; transition: color 0.15s, transform 0.15s; }
a.toolcard:hover .go { color: var(--accent-deep); transform: translateX(3px); }
.toolcard.soon { opacity: 0.6; }
.toolcard .soonpill { float: right; background: var(--surface-2); border: 1px solid var(--line); color: var(--ink-faint); border-radius: 999px; padding: 1px 10px; font-size: 0.68rem; font-weight: 700; font-family: "Spline Sans Mono", monospace; }
.toolcard .amount { font-family: "Syne", sans-serif; font-weight: 800; font-size: 1.8rem; color: var(--accent-deep); margin: 8px 0 2px; font-variant-numeric: tabular-nums; }

/* ---------- pie ---------- */
footer.site { border-top: 1px solid var(--line); padding: 34px 0 50px; font-size: 0.85rem; color: var(--ink-faint); background: var(--ground); }
footer .cols { display: flex; flex-wrap: wrap; gap: 12px 30px; align-items: center; }
footer a { color: var(--ink-faint); }
footer a:hover { color: var(--accent-deep); }

/* ---------- v2: wow ---------- */
/* CTA compacta y siempre visible en cabecera */
.btn.small { padding: 8px 18px; font-size: 0.88rem; border-radius: 8px; }
.cta-note { font-size: 0.78rem; color: var(--ink-faint); }
/* el CTA de cabecera hereda el color de .nav .links a (más específico): forzar */
.nav .links a.btn { color: var(--accent-ink); }
.nav .links a.btn:hover { color: var(--accent-ink); }

/* comparador de resultado (tu propia imagen) */
.result-compare { margin-top: 20px; }
.compare.mini { aspect-ratio: var(--ar, 4 / 3); max-height: 560px; }
.compare.mini .after-clip.checker {
  background:
    repeating-conic-gradient(#dfdcd0 0% 25%, #f2f0e7 0% 50%) 0 0 / 22px 22px;
}
.compare.mini .after-clip.checker img { object-fit: contain; }
.rc-hint { font-size: 0.75rem; color: var(--ink-faint); margin-top: 8px; letter-spacing: 0.05em; }

/* FAQ */
.faq { margin-top: 14px; display: grid; gap: 10px; max-width: 860px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 0; }
.faq summary { cursor: pointer; padding: 15px 20px; font-weight: 700; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 12px; color: var(--accent-deep); font-family: "Spline Sans Mono", monospace; font-size: 1.15rem; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 20px 16px; margin: 0; color: var(--ink-soft); font-size: 0.93rem; }
.faq details[open] { border-color: var(--line-strong); }

/* tarjetas antes/después con barrido automático (catálogo y carrusel) */
.ba-card {
  position: relative; display: block; text-decoration: none; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: border-color 0.15s, transform 0.2s, box-shadow 0.2s;
}
.ba-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--glow); }
.ba { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--frame); }
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.ba .after { clip-path: inset(0 0 0 50%); }
.ba .balin { position: absolute; top: 0; bottom: 0; left: 50%; width: 2px; background: var(--accent-bright); box-shadow: 0 0 10px rgba(74, 222, 128, 0.8); }
@media (prefers-reduced-motion: no-preference) {
  .ba .after { animation: ba-sweep 7s cubic-bezier(0.45, 0, 0.25, 1) infinite; }
  .ba .balin { animation: ba-line 7s cubic-bezier(0.45, 0, 0.25, 1) infinite; }
  .ba-card:nth-child(2) .after, .ba-card:nth-child(2) .balin { animation-delay: -1.7s; }
  .ba-card:nth-child(3) .after, .ba-card:nth-child(3) .balin { animation-delay: -3.4s; }
  .ba-card:nth-child(4) .after, .ba-card:nth-child(4) .balin { animation-delay: -5.1s; }
  .ba-card:nth-child(5) .after, .ba-card:nth-child(5) .balin { animation-delay: -2.6s; }
  .ba-card:nth-child(6) .after, .ba-card:nth-child(6) .balin { animation-delay: -4.3s; }
  .ba-card:nth-child(7) .after, .ba-card:nth-child(7) .balin { animation-delay: -6s; }
  @keyframes ba-sweep {
    0%, 12% { clip-path: inset(0 0 0 92%); }
    45%, 62% { clip-path: inset(0 0 0 22%); }
    100% { clip-path: inset(0 0 0 92%); }
  }
  @keyframes ba-line {
    0%, 12% { left: 92%; }
    45%, 62% { left: 22%; }
    100% { left: 92%; }
  }
}
.ba .tagmini {
  position: absolute; bottom: 8px; font-family: "Spline Sans Mono", monospace;
  background: rgba(6, 12, 8, 0.8); font-size: 0.62rem; font-weight: 600; letter-spacing: 0.08em;
  padding: 2px 8px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.14); z-index: 2;
}
.ba .tagmini.l { left: 8px; color: #cfdccf; }
.ba .tagmini.r { right: 8px; color: var(--accent-bright); border-color: rgba(74, 222, 128, 0.4); }
.ba-card .meta { padding: 15px 18px 17px; }
.ba-card .meta h3 { font-size: 1.02rem; margin: 0 0 4px; }
.ba-card .meta p { font-size: 0.84rem; color: var(--ink-soft); margin: 0 0 8px; }
.ba-card .meta .go-cta { font-family: "Spline Sans Mono", monospace; font-size: 0.8rem; color: var(--accent-deep); font-weight: 600; }

/* rejilla del catálogo (home) */
.ba-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; margin-top: 26px; }

/* carrusel bajo cada landing */
.carousel {
  display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 4px 4px 16px; margin-top: 22px; scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}
.carousel .ba-card { flex: 0 0 300px; scroll-snap-align: start; }
.carousel-wrap { position: relative; }
.carousel-wrap::after {
  content: ""; position: absolute; top: 0; bottom: 16px; right: 0; width: 70px;
  background: linear-gradient(90deg, transparent, var(--ground)); pointer-events: none;
}

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }