/* Know your Limits — landing.
   Idea central: la línea del límite (la del logo KYL) cruza la portada.
   Siempre en tema claro, con vidrio. Color solo con significado:
   verde/amarillo/rojo = zonas de recuperación, azul = esfuerzo, índigo = sueño. */

@font-face { font-family: "Barlow"; src: url("fonts/barlow-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("fonts/barlow-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("fonts/barlow-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Barlow Condensed"; src: url("fonts/barlow-condensed-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Barlow Condensed"; src: url("fonts/barlow-condensed-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }

@property --fill {
  syntax: "<number>";
  inherits: false;
  initial-value: 0;
}

:root {
  --paper: #f6f8fa;
  --paper-2: #e8edf3;
  --ink: #0e1116;
  --slate: #5f6b78;
  --rule: rgba(14, 17, 22, 0.1);

  --teal: #0e9c88;
  --green: #1a9e4b;
  --yellow: #b7860b;
  --red: #d83a35;
  --blue: #1f6fe0;
  --indigo: #6352d9;

  --glass: rgba(255, 255, 255, 0.62);
  --glass-edge: rgba(255, 255, 255, 0.85);
  --glass-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 18px 50px -18px rgba(14, 17, 22, 0.22);

  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --text: "Barlow", "Helvetica Neue", Arial, sans-serif;
  --measure: 34rem;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}


* { box-sizing: border-box; }

body {
  margin: 0;
  font: 400 18px/1.6 var(--text);
  color: var(--ink);
  background: linear-gradient(170deg, var(--paper) 40%, var(--paper-2)) fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Halos suaves de color detrás del vidrio: teal arriba, azul abajo. */
body {
  background:
    radial-gradient(60vmax 50vmax at 0% 0%, color-mix(in srgb, var(--teal) 16%, transparent), transparent 70%),
    radial-gradient(60vmax 50vmax at 100% 100%, color-mix(in srgb, var(--blue) 12%, transparent), transparent 70%),
    linear-gradient(170deg, var(--paper) 40%, var(--paper-2));
  background-attachment: fixed;
}

a { color: inherit; text-underline-offset: 3px; }
a:focus-visible, .button:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; border-radius: 6px; }

.wrap { width: min(1160px, 100% - 2 * var(--gutter)); margin-inline: auto; }

.glass {
  background: var(--glass);
  border: 1px solid var(--glass-edge);
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: blur(24px) saturate(170%);
  backdrop-filter: blur(24px) saturate(170%);
}

/* ---------- Navegación ---------- */
.nav {
  position: sticky; top: 14px; z-index: 5;
  margin-top: 14px;
  display: flex; align-items: center; gap: 24px;
  padding: 8px 8px 8px 16px;
  border-radius: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; }
.mark { width: 30px; height: 30px; color: var(--ink); }
.mark .bg { fill: currentColor; }
.mark .fg { fill: var(--paper); }
.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 16px; }
.nav-links a { color: var(--slate); text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
/* Selector de idioma ES | EN */
.lang {
  display: flex;
  padding: 3px;
  border-radius: 11px;
  background: color-mix(in srgb, var(--ink) 7%, transparent);
}
.lang a {
  padding: 7px 11px;
  border-radius: 8px;
  font: 600 15px/1 var(--display);
  letter-spacing: 0.04em;
  color: var(--slate);
  text-decoration: none;
}
.lang a:hover { color: var(--ink); }
.lang a[aria-current="page"] { background: var(--ink); color: var(--paper); }

.soon {
  font: 600 15px/1 var(--display);
  letter-spacing: 0.02em;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
}

/* ---------- Portada ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: end;
  padding-top: clamp(40px, 8vw, 96px);
}
.hero h1 {
  margin: 0;
  font: 700 clamp(64px, 10.5vw, 148px)/0.86 var(--display);
  letter-spacing: -0.015em;
}
.hero-copy p { max-width: var(--measure); color: var(--slate); margin: 22px 0 28px; }

/* La línea del límite: sale del titular y corre hasta el borde derecho. */
.limit {
  height: 6px;
  margin-top: 26px;
  margin-right: calc(-1 * (100vw - 100%));
  background: var(--ink);
  border-radius: 6px 0 0 6px;
}

.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button {
  display: inline-block;
  padding: 13px 20px;
  border-radius: 12px;
  font: 600 18px/1 var(--display);
  letter-spacing: 0.02em;
  text-decoration: none;
}
.button.solid { background: var(--ink); color: var(--paper); }
.button.quiet { border: 1px solid var(--rule); }

figure { margin: 0; }

.photo {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--paper-2);
}
.photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.runner img { object-position: 58% 30%; }
.migraine img { object-position: 50% 30%; }

/* Lectura de riesgo de migraña sobre la foto de portada. */
.reading.risk { grid-template-columns: 1fr; gap: 10px; }
.risk-head { display: flex; justify-content: space-between; align-items: baseline; }
.risk-head span { font-size: 15px; color: var(--slate); }
.risk-head b { font: 700 30px/1 var(--display); color: var(--red); }
.risk-bar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.risk-bar span { height: 6px; border-radius: 3px; }
.reading.risk dl { grid-template-columns: 1fr auto; }
.risk dt { gap: 0; }

/* Datos sobre migraña con sus fuentes. */
.facts-strip {
  margin-top: clamp(40px, 6vw, 64px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
  border-top: 1px solid var(--rule);
  padding-top: 24px;
}
.facts-strip p { margin: 0; color: var(--slate); font-size: 16px; }
.facts-strip b {
  display: block;
  font: 700 clamp(36px, 4.4vw, 52px)/1 var(--display);
  color: var(--ink);
  margin-bottom: 6px;
}
.cite {
  font-size: 12px;
  vertical-align: super;
  margin-left: 3px;
  color: var(--teal);
  text-decoration: none;
}
.morning { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); }
.morning .photo { aspect-ratio: 5 / 4; }

/* Lectura matinal, como la tarjeta “Hoy” de la app. */
.reading {
  position: absolute;
  left: 14px; right: 14px; bottom: 14px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: center;
  padding: 16px 18px;
  border-radius: 20px;
}
.ring {
  --fill: 0.72;
  width: 92px; height: 92px;
  border-radius: 50%;
  display: grid; place-items: center;
  background:
    radial-gradient(closest-side, var(--glass) 74%, transparent 75%),
    conic-gradient(var(--green) calc(var(--fill) * 1turn), color-mix(in srgb, var(--green) 18%, transparent) 0);
  animation: fill 1.4s cubic-bezier(.2, .8, .2, 1) both;
}
@keyframes fill { from { --fill: 0; } }
.ring b { font: 700 30px/1 var(--display); }
.ring b small { font-size: 16px; }
.reading dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 15px; }
.reading dt { color: var(--slate); display: flex; align-items: center; gap: 8px; }
.reading dd { margin: 0; text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }
.reading .verdict { grid-column: 1 / -1; text-align: left; font: 600 17px/1.2 var(--display); letter-spacing: 0.01em; margin-top: 2px; }

.swatch { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.s-green { background: var(--green); }
.s-yellow { background: var(--yellow); }
.s-red { background: var(--red); }
.s-blue { background: var(--blue); }
.s-indigo { background: var(--indigo); }
.s-teal { background: var(--teal); }

/* ---------- Secciones ---------- */
section { margin-top: clamp(80px, 12vw, 140px); }
h2 {
  margin: 0 0 14px;
  font: 700 clamp(40px, 5.4vw, 68px)/0.95 var(--display);
  letter-spacing: -0.01em;
  max-width: 14ch;
}
.intro { max-width: var(--measure); color: var(--slate); margin: 0; }

/* Ficha técnica: métrica, escala real, qué te dice. */
.spec {
  margin-top: 36px;
  border-radius: 24px;
  padding: 6px 0;
}
.spec-row {
  display: grid;
  grid-template-columns: 14px minmax(140px, 1fr) minmax(90px, 0.6fr) minmax(0, 2.4fr);
  gap: 18px;
  align-items: baseline;
  padding: 18px 26px;
}
.spec-row + .spec-row { border-top: 1px solid var(--rule); }
.spec-row .swatch { align-self: center; }
.spec-row h3 { margin: 0; font: 600 24px/1.1 var(--display); }
.scale { font: 600 20px/1 var(--display); color: var(--slate); font-variant-numeric: tabular-nums; }
.spec-row p { margin: 0; color: var(--slate); font-size: 16px; }
.zones3 { display: inline-flex; gap: 3px; align-self: center; }
.zones3 .swatch { width: 4px; height: 14px; border-radius: 2px; }

/* Zonas: qué hacer según tu recuperación. */
.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}
.stretch { aspect-ratio: 4 / 3; border-radius: 24px; }
.stretch img { object-position: 40% 40%; }
.zones { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 10px; }
.zones li {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  border-radius: 16px;
}
.zones b { font: 700 26px/1 var(--display); font-variant-numeric: tabular-nums; }
.zones li span { color: var(--slate); font-size: 16px; }
.z-green { border-left: 5px solid var(--green); }
.z-yellow { border-left: 5px solid var(--yellow); }
.z-red { border-left: 5px solid var(--red); }
.z-green b { color: var(--green); }
.z-yellow b { color: var(--yellow); }
.z-red b { color: var(--red); }

/* Privacidad */
.privacy { padding: clamp(28px, 5vw, 56px); border-radius: 28px; }
.privacy h2 { max-width: 16ch; }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 30px; }
.facts h3 { margin: 0 0 6px; font: 600 22px/1.1 var(--display); }
.facts p { margin: 0; color: var(--slate); font-size: 16px; }

/* Invitación */
.invite { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: end; justify-content: space-between; }
.invite p { max-width: var(--measure); color: var(--slate); margin: 0; }

footer {
  margin: clamp(80px, 12vw, 140px) 0 28px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  display: flex; flex-wrap: wrap; gap: 8px 28px;
  justify-content: space-between;
  font-size: 15px; color: var(--slate);
}
footer nav { display: flex; gap: 22px; }

/* ---------- Páginas de texto ---------- */
.doc { margin-top: 40px; padding: clamp(24px, 5vw, 56px); border-radius: 28px; }
.doc h1 { margin: 0 0 6px; font: 700 clamp(44px, 7vw, 72px)/0.95 var(--display); }
.doc h2 { font-size: 30px; max-width: none; margin-top: 40px; margin-bottom: 8px; }
.doc p, .doc li { color: var(--slate); max-width: 40rem; }
.doc strong { color: var(--ink); font-weight: 600; }
.doc .faq dt { font: 600 22px/1.2 var(--display); margin-top: 26px; }
.doc .faq dd { margin: 6px 0 0; color: var(--slate); max-width: 40rem; }
.date { color: var(--slate); font-size: 15px; margin: 0; }
.doc code { font-size: 0.9em; color: var(--ink); }
.lang-split { margin: 56px 0 40px; border: 0; border-top: 1px solid var(--rule); }

@media (max-width: 860px) {
  .hero, .split { grid-template-columns: 1fr; }
  .photo.runner { aspect-ratio: 4 / 5; }
  .spec-row { grid-template-columns: 14px 1fr auto; }
  .spec-row p { grid-column: 2 / -1; }
  .facts, .facts-strip { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .lang { margin-left: auto; }
}

@media (max-width: 520px) {
  .reading { gap: 12px; padding: 12px 14px; left: 10px; right: 10px; bottom: 10px; }
  .ring { width: 72px; height: 72px; }
  .ring b { font-size: 24px; }
  .reading dl { font-size: 14px; gap: 2px 10px; }
  .zones li { grid-template-columns: 64px 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .ring { animation: none; }
}