/* ==========================================================================
   Ayudarte · Piezas de interfaz: botones, header, acordeón, filtro, guía de respiración y pie.
   Aquí no hay colores ni radios fijos: todo sale de los tokens de site.css.
   ========================================================================== */
@layer reset, tokens, base, parts, template, utilities;

@layer parts {

  /* ---------- Botones ----------------------------------------------------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 3rem;
    padding: 0 1.5rem;
    border: 2px solid var(--brand);
    border-radius: var(--r-btn);
    background: var(--brand);
    color: var(--on-brand);
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    touch-action: manipulation;
    transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
  }
  .btn:hover { background: var(--brand-hover); border-color: var(--brand-hover); color: var(--on-brand); }
  .btn .icon { width: 1.125rem; height: 1.125rem; }
  /* Botón secundario: fondo claro, filete fino y icono a la izquierda (estilo "Ver recursos") */
  .btn--outline {
    background: var(--surface);
    border-color: transparent;
    box-shadow: inset 0 0 0 1.5px var(--brand);
    color: var(--brand);
  }
  .btn--outline:hover { background: var(--brand); border-color: transparent; color: var(--on-brand); box-shadow: none; }

  /* Teléfonos: cifras limpias (Atkinson lleva barra en el cero) */
  .tel {
    font-family: var(--font-tel, var(--font-display));
    font-weight: var(--fw-display);
    font-variant-numeric: lining-nums tabular-nums;
    letter-spacing: 0;
  }

  /* ---------- Header ------------------------------------------------------ */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--header-bg, var(--bg));
    border-bottom: 1px solid var(--line);
  }
  .site-header__inner {
    display: grid;
    grid-template-columns: 1fr auto auto;
    grid-template-areas: "brand toggle call" "nav nav nav";
    align-items: center;
    column-gap: 0.5rem;
    min-height: var(--header-h);
  }

  .brand {
    grid-area: brand;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    width: fit-content;
    min-height: 3rem;
    color: var(--ink);
    text-decoration: none;
  }
  .brand:hover { color: var(--ink); }
  .brand__mark { width: 2.4rem; height: auto; flex: none; }
  /* Nombre del logotipo ("AyuDarte"): imagen que solo aporta la silueta; el color lo pone el
     tema (azul grisáceo en claro, uno claro en oscuro). Sin soporte de máscaras se ve el texto. */
  .brand__word { font-family: var(--font-display); font-size: 1.5rem; line-height: 1; color: var(--ink-2); }
  @supports (mask-image: url("x.svg")) or (-webkit-mask-image: url("x.svg")) {
    .brand__word {
      display: block;
      flex: none;
      height: 1.85rem;
      aspect-ratio: 644 / 150;
      font-size: 0;
      background-color: var(--ink-2);
      forced-color-adjust: none;
      -webkit-mask: url("../img/logo-ayudarte.webp") center / contain no-repeat;
      mask: url("../img/logo-ayudarte.webp") center / contain no-repeat;
    }
  }

  /* Botón fijo del header: "Pedir apoyo" con corazón sólido a la izquierda */
  .header-cta {
    grid-area: call;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 2.75rem;
    padding: 0 1.25rem;
    border-radius: var(--r-btn);
    background: var(--brand);
    color: var(--on-brand);
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    touch-action: manipulation;
    transition: background-color 160ms ease;
  }
  .header-cta:hover { background: var(--brand-hover); color: var(--on-brand); }
  .header-cta .icon { width: 1.0625rem; height: 1.0625rem; }

  .menu-toggle {
    grid-area: toggle;
    display: none;
    align-items: center;
    gap: 0.5rem;
    min-height: 2.75rem;
    padding: 0 0.85rem;
    border: 2px solid var(--line-strong);
    border-radius: var(--r-btn);
    background: transparent;
    font-weight: 600;
    cursor: pointer;
    touch-action: manipulation;
  }
  .menu-toggle .icon { width: 1.125rem; height: 1.125rem; }

  .site-nav { grid-area: nav; }
  .site-nav ul { display: flex; flex-wrap: wrap; list-style: none; padding: 0; gap: 0 0.25rem; }
  .site-nav a {
    display: flex;
    align-items: center;
    min-height: 3rem;
    padding-inline: 0.75rem;
    color: var(--ink);
    font-weight: 600;
    text-decoration: none;
    text-underline-offset: 0.5em;
  }
  .site-nav a:hover { color: var(--brand); text-decoration: underline; text-decoration-thickness: 2px; }
  .site-nav a[aria-current="true"] { color: var(--brand); text-decoration: underline; text-decoration-thickness: 3px; }

  /* El menú en línea necesita ~62rem (con la raíz a 17 px); por debajo se pliega en el botón. */
  @media (max-width: 63.99rem) {
    .js .menu-toggle { display: inline-flex; }
    .js .site-nav {
      display: none;
      position: absolute;
      inset-inline: 0;
      top: 100%;
      padding: 0.5rem var(--gutter) 1rem;
      background: var(--bg);
      border-bottom: 1px solid var(--line);
    }
    .js .site-nav.is-open { display: block; }
    .js .site-nav ul { flex-direction: column; }
    .js .site-nav a { min-height: 3.25rem; border-top: 1px solid var(--line); }
  }
  /* Pantallas chicas: el menú queda solo con icono y la marca se aprieta,
     para que "Pedir apoyo" siga cabiendo en una línea (se lee igual con lector de pantalla). */
  @media (max-width: 30rem) {
    .js .menu-toggle { width: 2.75rem; padding: 0; justify-content: center; }
    .menu-toggle__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
    .header-cta { padding: 0 0.8rem; }
    .brand__word { height: 1.36rem; }
    .brand__mark { width: 2.1rem; height: auto; }
  }
  @media (max-width: 22.5rem) {
    .header-cta span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
    .header-cta { width: 2.75rem; justify-content: center; padding: 0; }
  }
  @media (min-width: 64rem) {
    .site-header__inner { grid-template-columns: auto 1fr auto; grid-template-areas: "brand nav call"; column-gap: 2rem; }
    .site-nav { justify-self: center; }
  }

  /* ---------- Cabeceras de sección --------------------------------------- */
  .section { padding-block: var(--section-y); }
  .section-head { max-width: 44rem; margin-bottom: clamp(1.5rem, 3vw, 2.5rem); }
  .section-head .lead { margin-top: 0.5rem; }
  .lead { font-size: var(--text-lg); line-height: 1.55; color: var(--ink-2); }

  /* Título a la izquierda (fijo al hacer scroll) + contenido a la derecha */
  .split { display: grid; gap: 1.5rem; }
  .split .accordion { max-width: none; }
  @media (min-width: 56rem) {
    .split { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
    .split > .section-head { position: sticky; top: calc(var(--header-h) + 1.5rem); margin-bottom: 0; }
  }

  /* Teléfono en horizontal: con tan poca altura, un header fijo se come casi una quinta
     parte de la pantalla; aquí se desplaza con la página. */
  @media (max-height: 30rem) and (orientation: landscape) {
    html { scroll-padding-top: 0; }
    .site-header { position: static; }
    .split > .section-head { position: static; }
  }

  /* ---------- Acordeón (Entiende lo que te pasa) ------------------------- */
  .accordion { display: grid; gap: 0.75rem; max-width: 52rem; }
  .accordion details {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-card);
    box-shadow: var(--shadow-card);
  }
  .accordion summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 3.5rem;
    padding: 1rem 1.25rem;
    font-family: var(--font-display);
    font-size: var(--h3-sm, 1.25rem);
    font-weight: var(--fw-display);
    letter-spacing: var(--tracking-display);
    line-height: 1.25;
    cursor: pointer;
    list-style: none;
  }
  .accordion summary::-webkit-details-marker { display: none; }
  .accordion summary:hover { color: var(--brand); }
  .accordion summary::after {
    content: "";
    flex: none;
    width: 1.125rem;
    height: 1.125rem;
    background:
      linear-gradient(currentColor, currentColor) center / 100% 2px no-repeat,
      linear-gradient(currentColor, currentColor) center / 2px 100% no-repeat;
    transition: background-size 160ms ease;
  }
  .accordion details[open] summary::after { background-size: 100% 2px, 2px 0; }
  .accordion .details-body { padding: 0 1.25rem 1.25rem; color: var(--ink-2); max-width: 62ch; }
  .myths { list-style: none; padding: 0; display: grid; gap: 0.75rem; }
  .myths li { padding-top: 0.75rem; border-top: 1px solid var(--line); }
  .myths li:first-child { padding-top: 0; border-top: 0; }
  .myths strong { color: var(--ink); }

  /* ---------- Terapias ---------------------------------------------------- */
  .filter { display: flex; flex-wrap: wrap; gap: 0.5rem; }
  .chip {
    min-height: 2.75rem;
    padding: 0 1.1rem;
    border: 1.5px solid var(--line-strong);
    border-radius: var(--r-chip);
    background: var(--surface);
    color: var(--ink);
    font-weight: 600;
    cursor: pointer;
    touch-action: manipulation;
    transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
  }
  .chip:hover { border-color: var(--brand); color: var(--brand); }
  .chip[aria-pressed="true"] { background: var(--brand); border-color: var(--brand); color: var(--on-brand); }
  .filter-count { margin-top: 0.75rem; color: var(--ink-2); font-size: var(--text-sm); }
  .filter-count:empty { display: none; }

  .therapies {
    list-style: none;
    padding: 0;
    margin-top: 1.5rem;
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr));
  }
  .therapy {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.5rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--r-card);
    box-shadow: var(--shadow-card);
  }
  .therapy h3 { font-size: var(--h3-sm, 1.25rem); }
  .therapy p { color: var(--ink-2); font-size: 0.9688rem; }
  .tags { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: auto; padding-top: 0.5rem; }
  .tag {
    padding: 0.2rem 0.75rem;
    border-radius: var(--r-chip);
    background: var(--tint);
    color: var(--ink);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.5;
  }
  .tag[data-tag="ansiedad"]         { background: var(--p-sky); }
  .tag[data-tag="depresión"]        { background: var(--p-lilac); }
  .tag[data-tag="trauma"]           { background: var(--p-peach); }
  .tag[data-tag="relaciones"]       { background: var(--p-mint); }
  .tag[data-tag="autoconocimiento"] { background: var(--p-butter); }
  .tag[data-tag="pánico"],
  .tag[data-tag="crisis"]           { background: var(--p-rose); }
  .tag--format { background: transparent; border: 1px solid var(--line-strong); color: var(--ink-2); }

  /* ---------- Guía de respiración 4-6 (panel fijo, centrado bajo las tarjetas) --- */
  .pacer-panel { display: flex; justify-content: center; margin-top: clamp(1.5rem, 3vw, 2.5rem); }
  .pacer-panel:has(> .pacer[hidden]) { display: none; }
  .pacer {
    display: grid;
    justify-items: center;
    gap: 0.9rem;
    width: min(100%, 34rem);
    padding: clamp(1.5rem, 3vw, 2.25rem);
    border-radius: var(--r-panel);
    background: var(--p-mint);
    color: var(--ink);
    text-align: center;
  }
  .pacer__title { font-size: var(--h3); }
  .pacer__stage { position: relative; width: min(100%, 15rem); aspect-ratio: 1; display: grid; place-items: center; }
  .pacer__ring { position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--line-strong); }
  .pacer__orb {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid var(--brand);
    background: var(--surface);
    background: color-mix(in srgb, var(--brand) 22%, transparent);
    transform: scale(var(--pacer-scale, 0.52));
    transition: transform var(--pacer-dur, 0s) cubic-bezier(0.45, 0.05, 0.55, 0.95);
  }
  .pacer__readout { position: relative; text-align: center; line-height: 1.1; }
  .pacer__phase { display: block; font-family: var(--font-display); font-size: 1.6rem; font-weight: var(--fw-display); }
  .pacer__count {
    display: block;
    min-height: 1.1em;
    margin-top: 0.25rem;
    font-family: var(--font-tel, var(--font-display));
    font-size: 1.4rem;
    font-weight: var(--fw-display);
    font-variant-numeric: lining-nums tabular-nums;
    color: var(--ink-2);
  }
  .pacer__meta { font-family: var(--font-tel, var(--font-display)); font-size: 1.1rem; font-weight: 600; font-variant-numeric: lining-nums tabular-nums; color: var(--ink-2); }

  /* ---------- Pie --------------------------------------------------------- */
  .site-footer { padding-block: clamp(2.5rem, 2rem + 3vw, 4.5rem); border-top: 1px solid var(--line); color: var(--ink-2); }
  .site-footer__top { display: grid; gap: 1.75rem; align-items: center; padding-bottom: 2rem; border-bottom: 1px solid var(--line); }
  .site-footer__bottom { display: grid; gap: 1.25rem; align-items: center; padding-top: 1.75rem; font-size: var(--text-sm); }
  .site-footer__bottom p { max-width: 58ch; }
  .brand--footer { grid-area: auto; gap: 0.75rem; }
  .brand__stack { display: grid; gap: 0.35rem; }
  .brand--footer .brand__word { height: 2.1rem; }
  .brand__tagline { font-size: var(--text-sm); color: var(--ink-2); line-height: 1.2; }
  .footer-nav ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; }
  .footer-nav a { display: inline-flex; align-items: center; min-height: 2.75rem; color: var(--ink); font-weight: 600; text-decoration: none; }
  .footer-nav a:hover { color: var(--brand); text-decoration: underline; text-decoration-thickness: 2px; }
  .footer-note { margin: 0; color: var(--ink); }
  .theme-switch { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem; }
  .theme-switch__label { margin-right: 0.5rem; }
  .theme-switch button {
    min-height: 2.75rem;
    padding: 0 1rem;
    border: 1.5px solid var(--line-strong);
    border-radius: var(--r-chip);
    background: transparent;
    cursor: pointer;
    font-weight: 600;
  }
  .theme-switch button:hover { border-color: var(--brand); color: var(--brand); }
  .theme-switch button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--bg); }
  @media (min-width: 56rem) {
    .site-footer__top { grid-template-columns: auto minmax(0, 1fr) auto; gap: 2rem; }
    .footer-nav ul { justify-content: center; }
    .site-footer__bottom { grid-template-columns: 1fr auto; gap: 2rem; }
  }
}