/* Khetut — sistema de diseño. Tokens en :root, componentes debajo. Mobile-first. */

:root {
  --kh-color-bg: #0B0F14;
  --kh-color-surface: #151B23;
  --kh-color-surface-2: #1B232D;
  --kh-color-border: #26303B;
  --kh-color-text: #E8EEF2;
  --kh-color-text-2: #9AA7B4;
  --kh-color-accent: #E4572E;
  --kh-color-accent-hover: #C4471F;
  --kh-color-teal: #3E8E9E;
  --kh-color-teal-soft: rgba(62, 142, 158, 0.16);

  --kh-font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --kh-font-body: "Source Sans 3", "Helvetica Neue", Arial, sans-serif;
  --kh-font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --kh-space-1: 4px;
  --kh-space-2: 8px;
  --kh-space-3: 12px;
  --kh-space-4: 16px;
  --kh-space-5: 24px;
  --kh-space-6: 32px;
  --kh-space-7: 48px;
  --kh-space-8: 80px;

  --kh-radius: 6px;
  --kh-radius-sm: 3px;
  --kh-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  --kh-measure: 60ch;
  --kh-container: 1120px;

  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--kh-color-bg);
  color: var(--kh-color-text);
  font-family: var(--kh-font-body);
  font-size: 18px;
  line-height: 1.55;
  text-wrap: pretty;
}
h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--kh-font-display);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  text-wrap: balance;
}
h1 { font-size: clamp(64px, 18vw, 144px); }
h2 { font-size: clamp(40px, 9vw, 64px); }
h3 { font-size: clamp(26px, 6vw, 32px); }
p { margin: 0; }
a { color: var(--kh-color-accent); text-decoration: none; text-underline-offset: 3px; }
a:hover { color: var(--kh-color-accent-hover); text-decoration: underline; }
img, svg, iframe { display: block; max-width: 100%; }
ul { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 3px solid var(--kh-color-accent); outline-offset: 3px; border-radius: var(--kh-radius-sm); }
::selection { background: var(--kh-color-accent); color: var(--kh-color-bg); }

.kh-visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Layout ---------- */
.kh-container { width: 100%; max-width: var(--kh-container); margin-inline: auto; padding-inline: var(--kh-space-4); }
.kh-section { padding-block: var(--kh-space-7); border-top: 1px solid var(--kh-color-border); }
.kh-section__head { display: flex; flex-direction: column; gap: var(--kh-space-3); margin-bottom: var(--kh-space-5); }
.kh-section__head p { color: var(--kh-color-text-2); max-width: var(--kh-measure); }
.kh-section__foot { margin-top: var(--kh-space-5); }
.kh-kicker {
  display: inline-flex; align-items: center; gap: var(--kh-space-2);
  font-family: var(--kh-font-display); font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.12em; font-size: 15px; color: var(--kh-color-accent);
}
.kh-kicker::before { content: ""; width: 24px; height: 2px; background: currentColor; }
.kh-lede { color: var(--kh-color-text-2); font-size: 20px; max-width: var(--kh-measure); }
.kh-grid { display: grid; gap: var(--kh-space-4); grid-template-columns: minmax(0, 1fr); }

/* ---------- Placeholders para foto y portada ---------- */
.kh-ph {
  position: relative; display: grid; place-items: center; overflow: hidden;
  border-radius: var(--kh-radius); border: 1px solid var(--kh-color-border);
  background: repeating-linear-gradient(135deg, var(--kh-color-surface) 0 10px, var(--kh-color-surface-2) 10px 20px);
  color: var(--kh-color-text-2); font-family: var(--kh-font-mono); font-size: 12px; text-align: center; padding: var(--kh-space-3);
}
.kh-ph--portrait { aspect-ratio: 4 / 5; }
.kh-ph--square { aspect-ratio: 1; }
.kh-ph--wide { aspect-ratio: 3 / 2; }

/* ---------- Botones ---------- */
.kh-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--kh-space-2);
  min-height: 48px; padding: 0 var(--kh-space-5);
  font-family: var(--kh-font-display); font-weight: 700; font-size: 20px; letter-spacing: 0.04em; text-transform: uppercase;
  border-radius: var(--kh-radius); border: 2px solid var(--kh-color-text); color: var(--kh-color-text); background: transparent;
  cursor: pointer; text-decoration: none; transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.kh-btn:hover { text-decoration: none; background: var(--kh-color-text); color: var(--kh-color-bg); }
.kh-btn--primary { background: var(--kh-color-accent); border-color: var(--kh-color-accent); color: var(--kh-color-bg); }
.kh-btn--primary:hover { background: var(--kh-color-accent-hover); border-color: var(--kh-color-accent-hover); color: var(--kh-color-bg); }
.kh-btn--secondary { border-color: var(--kh-color-border); color: var(--kh-color-text); }
.kh-btn--secondary:hover { background: var(--kh-color-surface-2); border-color: var(--kh-color-text-2); color: var(--kh-color-text); }
.kh-btn--sm { min-height: 44px; padding: 0 var(--kh-space-4); font-size: 17px; }
.kh-btn--block { width: 100%; }
.kh-btn[aria-disabled="true"] { opacity: 0.45; pointer-events: none; }
.kh-btn__ext { font-size: 0.85em; }

/* ---------- Etiquetas ---------- */
.kh-tag {
  display: inline-flex; align-items: center; min-height: 26px; padding: 0 var(--kh-space-2);
  font-family: var(--kh-font-display); font-weight: 600; font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase;
  border-radius: var(--kh-radius-sm); border: 1px solid var(--kh-color-border); color: var(--kh-color-text-2);
}
.kh-tag--credit { border-color: var(--kh-color-teal); background: var(--kh-color-teal-soft); color: var(--kh-color-text); }
.kh-tag--own { border-color: var(--kh-color-accent); color: var(--kh-color-accent); }
.kh-tag--soon { border-style: dashed; }

/* ---------- Header / nav ---------- */
.kh-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 15, 20, 0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--kh-color-border);
}
.kh-header__in { display: flex; align-items: center; justify-content: space-between; gap: var(--kh-space-4); min-height: 60px; }
.kh-logo {
  font-family: var(--kh-font-display); font-weight: 800; font-size: 28px; letter-spacing: 0.02em; text-transform: uppercase;
  color: var(--kh-color-text); text-decoration: none;
}
.kh-logo:hover { color: var(--kh-color-accent); text-decoration: none; }
.kh-nav { display: flex; gap: var(--kh-space-1); overflow-x: auto; scrollbar-width: none; }
.kh-nav::-webkit-scrollbar { display: none; }
.kh-nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 var(--kh-space-3); white-space: nowrap;
  font-family: var(--kh-font-display); font-weight: 600; font-size: 18px; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--kh-color-text-2); border-radius: var(--kh-radius-sm);
}
.kh-nav a:hover, .kh-nav a[aria-current="page"] { color: var(--kh-color-text); text-decoration: none; }
.kh-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--kh-color-accent); }
.kh-nav__cta { color: var(--kh-color-accent) !important; }

/* ---------- Hero ---------- */
.kh-hero { padding-block: var(--kh-space-5) var(--kh-space-7); }
.kh-hero__in { display: grid; gap: var(--kh-space-5); grid-template-columns: minmax(0, 1fr); }
.kh-hero__photo { width: 100%; max-width: 420px; }
.kh-hero__body { display: flex; flex-direction: column; gap: var(--kh-space-4); }
.kh-hero__role { font-family: var(--kh-font-display); font-weight: 600; font-size: 20px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--kh-color-text-2); }
.kh-hero__title { color: var(--kh-color-text); }
.kh-hero__title span { color: var(--kh-color-accent); }
.kh-hero__tagline { font-size: clamp(22px, 5.5vw, 30px); line-height: 1.25; max-width: 22ch; font-weight: 500; }
.kh-hero__actions { display: flex; flex-wrap: wrap; gap: var(--kh-space-3); margin-top: var(--kh-space-2); }
.kh-hero__meta { display: flex; flex-wrap: wrap; gap: var(--kh-space-2) var(--kh-space-4); color: var(--kh-color-text-2); font-size: 16px; }
.kh-hero__meta li::before { content: "•"; color: var(--kh-color-accent); margin-right: var(--kh-space-2); }
.kh-hero__meta li:first-child::before { content: none; }

/* ---------- Tarjeta base ---------- */
.kh-card {
  position: relative; display: flex; flex-direction: column; gap: var(--kh-space-3);
  background: var(--kh-color-surface); border: 1px solid var(--kh-color-border); border-radius: var(--kh-radius); padding: var(--kh-space-4);
}
.kh-card__title { font-family: var(--kh-font-display); font-weight: 700; font-size: 26px; line-height: 1.05; text-transform: uppercase; }
.kh-card__meta { color: var(--kh-color-text-2); font-size: 16px; }

/* Tarjeta de música propia: fondo con borde de acento, reproductor dentro, compra o "próximamente". */
.kh-card--track { border-top: 3px solid var(--kh-color-accent); }
.kh-card--track .kh-card__head { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: var(--kh-space-3); align-items: start; }
.kh-card--track .kh-card__cover { width: 88px; }
.kh-card--track .kh-card__info { display: flex; flex-direction: column; gap: var(--kh-space-1); min-width: 0; }
.kh-card--track .kh-card__tags { display: flex; flex-wrap: wrap; gap: var(--kh-space-2); }
.kh-card--track .kh-card__buy { display: flex; align-items: center; justify-content: space-between; gap: var(--kh-space-3); flex-wrap: wrap; padding-top: var(--kh-space-3); border-top: 1px dashed var(--kh-color-border); }
.kh-card--track .kh-price { font-family: var(--kh-font-display); font-weight: 700; font-size: 28px; }
.kh-card--track .kh-price small { font-size: 15px; font-weight: 600; color: var(--kh-color-text-2); margin-left: var(--kh-space-1); }
.kh-card--track .kh-soon { color: var(--kh-color-text-2); font-size: 16px; }
.kh-card--soon .kh-card__cover { filter: grayscale(1); opacity: 0.85; }

/* Tarjeta de participación: fondo plano, borde teal a la izquierda, sin reproductor ni compra. Enlaza hacia afuera. */
.kh-card--credit { background: transparent; border-left: 3px solid var(--kh-color-teal); border-radius: 0 var(--kh-radius) var(--kh-radius) 0; }
.kh-card--credit .kh-card__head { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: var(--kh-space-3); align-items: center; }
.kh-card--credit .kh-card__cover { width: 64px; font-size: 10px; padding: var(--kh-space-1); }
.kh-card--credit .kh-card__artist { font-family: var(--kh-font-display); font-weight: 700; font-size: 24px; line-height: 1.05; text-transform: uppercase; }
.kh-card--credit .kh-card__song { color: var(--kh-color-text); font-size: 17px; }
.kh-card--credit .kh-card__meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--kh-space-2); }
.kh-card--credit .kh-card__year { font-family: var(--kh-font-mono); font-size: 14px; color: var(--kh-color-text-2); }
.kh-card--credit .kh-card__actions { display: flex; flex-wrap: wrap; gap: var(--kh-space-2); }

/* Widget externo (Spotify / Apple Music / SoundCloud) con espacio reservado y fondo si no carga. */
.kh-embed {
  position: relative; min-height: 80px; border-radius: var(--kh-radius); overflow: hidden;
  background: var(--kh-color-surface); border: 1px solid var(--kh-color-border);
}
.kh-embed::before {
  content: "widget de la plataforma"; position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--kh-font-mono); font-size: 12px; color: var(--kh-color-text-2);
}
.kh-embed iframe { position: relative; width: 100%; height: 80px; border: 0; }
.kh-embed--apple iframe { height: 175px; }
.kh-embed--apple { min-height: 175px; }

/* ---------- Reproductor ---------- */
.kh-player { display: flex; flex-direction: column; gap: var(--kh-space-2); }
.kh-player audio { width: 100%; height: 44px; border-radius: var(--kh-radius); }
.kh-player__row { display: flex; justify-content: space-between; gap: var(--kh-space-3); font-size: 15px; color: var(--kh-color-text-2); font-family: var(--kh-font-mono); }
.kh-player__note { font-size: 14px; color: var(--kh-color-text-2); }

/* ---------- Cómo trabajo ---------- */
.kh-steps { counter-reset: kh-step; display: grid; gap: var(--kh-space-4); grid-template-columns: minmax(0, 1fr); }
.kh-steps li { counter-increment: kh-step; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--kh-space-3); align-items: start; padding-block: var(--kh-space-3); border-top: 1px solid var(--kh-color-border); }
.kh-steps li::before {
  content: "0" counter(kh-step); font-family: var(--kh-font-display); font-weight: 800; font-size: 48px; line-height: 1; color: var(--kh-color-accent); min-width: 56px;
}
.kh-steps h3 { margin-bottom: var(--kh-space-2); }
.kh-steps p { color: var(--kh-color-text-2); }
.kh-services { display: grid; gap: var(--kh-space-4); grid-template-columns: minmax(0, 1fr); margin-top: var(--kh-space-6); }
.kh-service { gap: var(--kh-space-3); padding: var(--kh-space-5); }
.kh-service__for { font-family: var(--kh-font-display); font-size: 15px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--kh-color-text-2); }
.kh-service p { color: var(--kh-color-text-2); }
.kh-service ul { display: grid; gap: var(--kh-space-1); color: var(--kh-color-text); font-size: 17px; }
.kh-service ul li::before { content: "—"; color: var(--kh-color-accent); margin-right: var(--kh-space-2); }
.kh-service .kh-btn { align-self: flex-start; margin-top: auto; }

/* ---------- Sobre ---------- */
.kh-about { display: grid; gap: var(--kh-space-5); grid-template-columns: minmax(0, 1fr); align-items: start; }
.kh-about__photo { max-width: 320px; }
.kh-about__body { display: flex; flex-direction: column; gap: var(--kh-space-4); }
.kh-about__body p { max-width: var(--kh-measure); }
.kh-about__facts { display: grid; gap: var(--kh-space-2); border-top: 1px solid var(--kh-color-border); padding-top: var(--kh-space-4); }
.kh-about__facts li { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: var(--kh-space-3); font-size: 17px; }
.kh-about__facts b { font-family: var(--kh-font-display); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--kh-color-text-2); font-size: 15px; padding-top: 3px; }

/* ---------- Contacto ---------- */
.kh-contact { display: grid; gap: var(--kh-space-5); grid-template-columns: minmax(0, 1fr); background: var(--kh-color-surface); border: 1px solid var(--kh-color-border); border-radius: var(--kh-radius); padding: var(--kh-space-5); box-shadow: var(--kh-shadow); }
.kh-contact__title { font-size: clamp(36px, 8vw, 56px); }
.kh-contact__mail {
  display: inline-block; font-family: var(--kh-font-display); font-weight: 700; font-size: clamp(24px, 7.2vw, 44px); line-height: 1.1;
  color: var(--kh-color-accent); text-decoration: underline; text-decoration-thickness: 3px; text-underline-offset: 6px; overflow-wrap: anywhere;
}
.kh-contact__mail:hover { color: var(--kh-color-accent-hover); }
.kh-contact__body { display: flex; flex-direction: column; gap: var(--kh-space-4); }
.kh-contact__list { display: grid; gap: var(--kh-space-2); }
.kh-contact__list h3 { font-size: 15px; letter-spacing: 0.1em; color: var(--kh-color-text-2); margin-bottom: var(--kh-space-1); }
.kh-contact__list li { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: var(--kh-space-2); color: var(--kh-color-text); }
.kh-contact__list li::before { content: "→"; color: var(--kh-color-accent); font-weight: 700; }
.kh-contact__note { color: var(--kh-color-text-2); font-size: 16px; }

/* ---------- Pie ---------- */
.kh-footer { border-top: 1px solid var(--kh-color-border); padding-block: var(--kh-space-6); color: var(--kh-color-text-2); font-size: 16px; }
.kh-footer__in { display: grid; gap: var(--kh-space-5); grid-template-columns: minmax(0, 1fr); }
.kh-footer__brand { display: flex; flex-direction: column; gap: var(--kh-space-2); }
.kh-footer__social { display: flex; flex-wrap: wrap; gap: var(--kh-space-2); }
.kh-footer__social a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 var(--kh-space-3);
  border: 1px solid var(--kh-color-border); border-radius: var(--kh-radius); color: var(--kh-color-text);
  font-family: var(--kh-font-display); font-weight: 600; font-size: 17px; letter-spacing: 0.04em; text-transform: uppercase;
}
.kh-footer__social a:hover { border-color: var(--kh-color-accent); color: var(--kh-color-accent); text-decoration: none; }
.kh-footer__legal { display: flex; flex-wrap: wrap; gap: var(--kh-space-2) var(--kh-space-4); padding-top: var(--kh-space-4); border-top: 1px solid var(--kh-color-border); }
.kh-footer__legal a { color: var(--kh-color-text-2); }
.kh-footer__legal a:hover { color: var(--kh-color-text); }

/* ---------- Aviso de datos de ejemplo ---------- */
.kh-demo { display: inline-flex; align-items: center; gap: var(--kh-space-2); font-family: var(--kh-font-mono); font-size: 12px; color: var(--kh-color-text-2); }
.kh-demo::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--kh-color-teal); }

/* ---------- Filtro (Participaciones) ---------- */
.kh-filter { display: flex; flex-wrap: wrap; gap: var(--kh-space-2); }
.kh-filter button {
  min-height: 44px; padding: 0 var(--kh-space-4); cursor: pointer;
  font-family: var(--kh-font-display); font-weight: 600; font-size: 17px; letter-spacing: 0.06em; text-transform: uppercase;
  background: transparent; color: var(--kh-color-text-2); border: 1px solid var(--kh-color-border); border-radius: 999px;
}
.kh-filter button:hover { color: var(--kh-color-text); border-color: var(--kh-color-text-2); }
.kh-filter button[aria-pressed="true"] { background: var(--kh-color-text); color: var(--kh-color-bg); border-color: var(--kh-color-text); }
.kh-is-hidden { display: none !important; }

/* ---------- Escritorio ---------- */
@media (min-width: 720px) {
  .kh-container { padding-inline: var(--kh-space-6); }
  .kh-section { padding-block: var(--kh-space-8); }
  .kh-section__head { flex-direction: row; align-items: flex-end; justify-content: space-between; }
  .kh-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kh-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kh-hero { padding-block: var(--kh-space-7) var(--kh-space-8); }
  .kh-hero__in { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); align-items: center; }
  .kh-hero__photo { order: 2; max-width: 420px; justify-self: end; }
  .kh-hero__body { order: 1; min-width: 0; }
  .kh-hero__title { font-size: clamp(64px, 11vw, 160px); }
  .kh-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .kh-steps li { grid-template-columns: minmax(0, 1fr); border-top: 2px solid var(--kh-color-border); }
  .kh-services { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kh-about { grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); }
  .kh-contact { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); padding: var(--kh-space-7); }
  .kh-footer__in { grid-template-columns: minmax(0, 1fr) auto; align-items: start; }
  .kh-footer__legal { grid-column: 1 / -1; }
}
@media (min-width: 1024px) {
  .kh-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .kh-grid--credits { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kh-hero__title { font-size: 160px; }
}