:root {
  --bg: oklch(0.145 0.035 258);
  --bg2: oklch(0.19 0.045 252);
  --card: color-mix(in oklch, oklch(0.25 0.055 250) 78%, transparent);
  --card2: oklch(0.235 0.05 248);
  --text: oklch(0.965 0.016 86);
  --muted: oklch(0.74 0.045 238);
  --accent: oklch(0.78 0.2 154);
  --accent2: oklch(0.84 0.175 80);
  --hot: oklch(0.72 0.22 25);
  --border: color-mix(in oklch, var(--text) 14%, transparent);
  --ok: oklch(0.78 0.2 154);
  --warn: oklch(0.83 0.16 78);
  --bad: oklch(0.68 0.22 28);
  --radius: 26px;
  --shadow: 0 28px 90px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 82% 8%, color-mix(in oklch, var(--hot) 32%, transparent) 0 16rem, transparent 29rem),
    radial-gradient(circle at 8% 18%, color-mix(in oklch, var(--accent) 24%, transparent) 0 15rem, transparent 30rem),
    linear-gradient(135deg, var(--bg), oklch(0.11 0.035 275) 58%, oklch(0.17 0.045 228));
  color: var(--text);
  line-height: 1.65;
  min-width: 320px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: .32;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 54px 54px, 54px 54px;
  mask-image: linear-gradient(to bottom, #000, transparent 78%);
}

.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

a { color: var(--accent); text-underline-offset: .22em; }

button, input { font: inherit; }

:focus-visible { outline: 3px solid color-mix(in oklch, var(--accent2) 75%, white); outline-offset: 3px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(16px, 4vw, 34px);
  background: color-mix(in oklch, var(--bg) 72%, transparent);
  backdrop-filter: blur(18px) saturate(130%);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--text); text-decoration: none;
  font-weight: 900; letter-spacing: .04em;
}
.brand::after {
  content: "";
  width: 9px; height: 9px; border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 24px var(--accent);
}
.brand span { color: var(--text); }
.site-nav { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.site-nav a {
  color: var(--muted); text-decoration: none; font-size: .9rem; font-weight: 800;
  padding: 8px 12px; border-radius: 999px;
  transition: color .18s ease, background .18s ease, transform .18s ease;
}
.site-nav a:hover { color: var(--text); background: rgba(255,255,255,.075); transform: translateY(-1px); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(56px, 8vw, 112px) 0 46px;
  border-bottom: 1px solid var(--border);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 42px max(18px, calc((100vw - 1120px) / 2)) auto auto;
  width: min(42vw, 480px);
  aspect-ratio: 1;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 35% 65% 62% 38% / 40% 42% 58% 60%;
  background:
    radial-gradient(circle at 32% 28%, rgba(255,255,255,.22), transparent 18%),
    linear-gradient(135deg, color-mix(in oklch, var(--accent) 45%, transparent), color-mix(in oklch, var(--accent2) 38%, transparent));
  filter: blur(.2px);
  opacity: .75;
  animation: floatOrb 12s ease-in-out infinite;
}
.hero::after {
  content: "♫  ↗  CSV  ·  Spotify  ·  Deezer  ·  Apple Music";
  position: absolute;
  left: max(18px, calc((100vw - 1120px) / 2));
  right: max(18px, calc((100vw - 1120px) / 2));
  bottom: 24px;
  color: rgba(255,255,255,.12);
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(1.8rem, 7vw, 6.6rem);
  line-height: .85;
  white-space: nowrap;
  pointer-events: none;
  z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, 520px); gap: clamp(24px, 5vw, 72px); align-items: start; }
.hero h1 {
  grid-column: 1;
  margin: 0 0 18px;
  max-width: 790px;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(2.45rem, 6.4vw, 5.25rem);
  line-height: .86;
  letter-spacing: -.065em;
  text-wrap: balance;
  text-transform: uppercase;
}
.lead {
  grid-column: 1;
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.35vw, 1.22rem);
}
.lead strong { color: var(--accent2); }

/* ---------- Tool card ---------- */
.card {
  background: linear-gradient(145deg, rgba(255,255,255,.12), rgba(255,255,255,.045));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.14);
  backdrop-filter: blur(16px);
}
.tool {
  grid-column: 2;
  grid-row: 1 / span 3;
  position: relative;
  max-width: 100%;
  margin: 18px 0 0;
  padding: clamp(20px, 3vw, 30px);
  transform: rotate(1.2deg);
}
.tool::before {
  content: "CONVERSOR";
  position: absolute;
  top: -15px; left: 26px;
  padding: 6px 12px;
  border: 1px solid rgba(0,0,0,.22);
  border-radius: 999px;
  background: var(--accent2);
  color: oklch(0.17 0.05 70);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .12em;
  box-shadow: 0 12px 24px rgba(0,0,0,.24);
}
.field { display: block; margin-bottom: 18px; }
.field > span { display: block; font-size: .78rem; color: var(--muted); margin-bottom: 9px; text-transform: uppercase; letter-spacing: .1em; font-weight: 900; }

input[type="url"] {
  width: 100%; padding: 16px 17px;
  background: rgba(4, 8, 18, .62); border: 1px solid color-mix(in oklch, var(--accent) 24%, var(--border));
  border-radius: 18px; color: var(--text); font-size: 1rem;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.03);
}
input[type="url"]::placeholder { color: color-mix(in oklch, var(--muted) 55%, transparent); }
input[type="url"]:focus { border-color: var(--accent); outline: 3px solid color-mix(in oklch, var(--accent) 30%, transparent); }

.targets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.target {
  min-width: 0; padding: 13px 10px;
  background: rgba(255,255,255,.06); border: 1px solid var(--border);
  border-radius: 16px; color: var(--text); cursor: pointer;
  font-size: .92rem; font-weight: 900;
  transition: transform .18s ease, border-color .18s ease, background .18s ease, color .18s ease;
}
.target:hover { border-color: var(--accent2); transform: translateY(-2px); background: rgba(255,255,255,.095); }
.target.active { background: var(--accent); border-color: var(--accent); color: oklch(0.15 0.035 154); box-shadow: 0 16px 34px color-mix(in oklch, var(--accent) 24%, transparent); }
.target:disabled { opacity: .38; cursor: not-allowed; transform: none; }

button.primary {
  width: 100%; padding: 16px 18px;
  background: linear-gradient(100deg, var(--accent), var(--accent2) 54%, var(--hot));
  border: 0; border-radius: 18px; color: oklch(0.13 0.04 120);
  font-size: 1.05rem; font-weight: 1000; cursor: pointer;
  box-shadow: 0 18px 42px color-mix(in oklch, var(--accent) 20%, transparent);
  transition: transform .18s ease, filter .18s ease, box-shadow .18s ease;
}
button.primary:hover { transform: translateY(-2px); filter: saturate(1.08); }
button.primary:active { transform: translateY(0); }
button.primary:disabled { opacity: .58; cursor: progress; transform: none; }

.status { color: var(--muted); margin: 13px 0 0; min-height: 1.2em; font-size: .92rem; }
.status.error { color: var(--bad); }

/* ---------- Trust badges ---------- */
.trust {
  grid-column: 1 / -1;
  list-style: none; display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: flex-start; padding: 0; margin: 12px 0 0; max-width: 760px;
  font-size: .9rem; color: var(--text);
}
.trust li {
  padding: 9px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.055);
  backdrop-filter: blur(10px);
}

/* ---------- Results ---------- */
.results { grid-column: 1 / -1; width: 100%; margin: 30px auto 0; padding: clamp(18px, 3vw, 26px); }
.hidden { display: none; }
.results-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 16px; }
.results-head h2 { margin: 0; font-size: clamp(1.35rem, 2vw, 2rem); line-height: 1.05; }
.results-head p { margin: 4px 0 0; }
.actions { display: flex; gap: 8px; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }
button.ghost {
  padding: 9px 13px; background: rgba(255,255,255,.06); border: 1px solid var(--border);
  border-radius: 999px; color: var(--text); cursor: pointer; font-size: .85rem; font-weight: 900;
}
button.ghost:hover { border-color: var(--accent); background: rgba(255,255,255,.1); }
.progress { height: 9px; background: rgba(255,255,255,.08); border-radius: 99px; overflow: hidden; margin-bottom: 16px; }
#bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent2), var(--hot)); transition: width .2s; }
.list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.row { display: flex; align-items: center; gap: 12px; padding: 12px; background: rgba(5, 9, 19, .5); border: 1px solid var(--border); border-radius: 18px; }
.row .num { color: var(--muted); font-size: .8rem; width: 28px; text-align: center; flex-shrink: 0; font-weight: 900; }
.row .info { flex: 1; min-width: 0; }
.row .title { font-weight: 900; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row .artist { color: var(--muted); font-size: .86rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row .badge { font-size: .72rem; padding: 5px 9px; border-radius: 99px; flex-shrink: 0; font-weight: 900; }
.badge.ok { background: color-mix(in oklch, var(--ok) 16%, transparent); color: var(--ok); }
.badge.maybe { background: color-mix(in oklch, var(--warn) 16%, transparent); color: var(--warn); }
.badge.no { background: color-mix(in oklch, var(--bad) 16%, transparent); color: var(--bad); }
.badge.pending { background: rgba(255,255,255,.1); color: var(--muted); }
.row a.open { color: var(--accent2); text-decoration: none; font-size: .85rem; font-weight: 900; flex-shrink: 0; }
.row a.open:hover { text-decoration: underline; }

/* ---------- Content sections ---------- */
.content { position: relative; padding: clamp(48px, 7vw, 86px) 0; border-bottom: 1px solid var(--border); }
.content:last-of-type { border-bottom: none; }
.content .wrap { display: grid; grid-template-columns: minmax(190px, 300px) minmax(0, 1fr); gap: clamp(22px, 5vw, 64px); align-items: start; }
.content h2 {
  position: sticky; top: 86px;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(1.75rem, 3.5vw, 3.8rem);
  line-height: .92;
  letter-spacing: -.045em;
  margin: 0;
  text-transform: uppercase;
  text-wrap: balance;
}
.content h3 { font-size: 1.16rem; margin: 24px 0 8px; color: var(--accent2); }
.content p { color: color-mix(in oklch, var(--text) 78%, var(--muted)); margin-top: 0; }
.content p, .content li { max-width: 76ch; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li {
  counter-increment: step;
  position: relative;
  margin: 0;
  padding: 18px 18px 18px 64px;
  color: color-mix(in oklch, var(--text) 84%, var(--muted));
  background: rgba(255,255,255,.055);
  border: 1px solid var(--border);
  border-radius: 22px;
}
.steps li::before {
  content: counter(step);
  position: absolute; left: 18px; top: 18px;
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 50%; background: var(--accent2); color: oklch(0.16 0.035 75);
  font-weight: 1000;
}

/* tabla compatibilidad */
.table-wrap { overflow-x: auto; border-radius: 24px; border: 1px solid var(--border); background: rgba(255,255,255,.05); }
.compat { width: 100%; border-collapse: collapse; min-width: 560px; }
.compat th, .compat td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.compat tbody tr:last-child td { border-bottom: 0; }
.compat thead th { color: var(--accent2); font-weight: 1000; font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; }
.compat tbody td:first-child { font-weight: 1000; color: var(--text); }

/* grid conversiones */
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.conv-card {
  position: relative; overflow: hidden;
  background: linear-gradient(145deg, rgba(255,255,255,.095), rgba(255,255,255,.04));
  border: 1px solid var(--border); border-radius: 24px; padding: 22px;
  min-height: 150px;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.conv-card::before {
  content: "";
  position: absolute; right: -28px; top: -28px;
  width: 92px; aspect-ratio: 1; border-radius: 50%;
  background: color-mix(in oklch, var(--accent) 18%, transparent);
}
.conv-card:hover { transform: translateY(-4px); border-color: color-mix(in oklch, var(--accent) 45%, var(--border)); background: linear-gradient(145deg, rgba(255,255,255,.13), rgba(255,255,255,.055)); }
.conv-card p { margin: 0; font-size: .98rem; }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details {
  background: rgba(255,255,255,.055); border: 1px solid var(--border);
  border-radius: 20px; padding: 4px 18px; margin: 0;
}
.faq details[open] { background: rgba(255,255,255,.085); }
.faq summary { cursor: pointer; padding: 14px 32px 14px 0; font-weight: 1000; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 12px; color: var(--accent); font-weight: 1000; font-size: 1.2rem; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 14px; color: color-mix(in oklch, var(--text) 78%, var(--muted)); }

/* anuncios */
.ad-slot { min-height: 90px; margin: 8px 0; border-radius: 18px; }

/* ---------- Footer ---------- */
.site-footer { background: color-mix(in oklch, var(--bg2) 72%, black); border-top: 1px solid var(--border); padding: 34px 0; }
.site-footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.site-footer p { margin: 4px 0; }
.footer-links a { color: var(--muted); text-decoration: none; font-weight: 800; }
.footer-links a:hover { color: var(--text); }

@keyframes floatOrb {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  50% { transform: translate3d(-18px, 18px, 0) rotate(7deg); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .tool { grid-column: 1; grid-row: auto; transform: none; margin-top: 12px; }
  .trust { grid-column: 1; }
  .hero::before { width: 58vw; opacity: .42; }
  .content .wrap { grid-template-columns: 1fr; }
  .content h2 { position: static; }
}

@media (max-width: 640px) {
  .wrap { width: min(100% - 28px, 1120px); }
  .site-header { align-items: flex-start; flex-direction: column; }
  .site-nav { justify-content: flex-start; }
  .site-nav a { padding: 6px 8px; }
  .hero { padding-top: 40px; }
  .hero h1 { font-size: clamp(2.4rem, 15vw, 4.3rem); }
  .targets { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .results-head { flex-direction: column; }
  .actions { justify-content: flex-start; }
  .row { align-items: flex-start; flex-wrap: wrap; }
  .row .info { flex-basis: calc(100% - 44px); }
  .row a.open { margin-left: 44px; }
}