/* =============================================================
   ConverterImg — comprimir y convertir imágenes
   1. Tokens   2. Reset   3. Utilidades   4. Tipografía
   5. Componentes   6. Secciones   7. Herramienta por lotes
   8. Responsive   9. Reduced-motion
   ============================================================= */

/* ============================ 1. TOKENS ============================ */
:root {
  --bg: #f5f8f7;
  --surface: #ffffff;
  --surface-2: #edf3f1;
  --ink: #12211d;
  --ink-soft: #46574f;
  --ink-faint: #74847c;
  --line: #dde8e4;
  --line-strong: #c4d4cd;

  --accent: #0d9488;
  --accent-hover: #0b7c72;
  --accent-soft: #d9f2ee;
  --accent-ink: #ffffff;

  --ok: #12a150;
  --ok-soft: #e6f7ee;
  --warn: #b7791f;
  --warn-soft: #fdf3e2;
  --danger: #d13b3b;
  --danger-soft: #fdecec;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(16, 33, 29, .05), 0 1px 3px rgba(16, 33, 29, .05);
  --shadow: 0 8px 24px rgba(16, 33, 29, .08);
  --shadow-lg: 0 24px 60px rgba(16, 33, 29, .14);

  --sans: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  --wrap: 1080px;
  --gutter: clamp(1rem, 4vw, 2rem);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1210;
    --surface: #14201c;
    --surface-2: #1b2925;
    --ink: #e9f1ee;
    --ink-soft: #b0c0ba;
    --ink-faint: #82938c;
    --line: #263531;
    --line-strong: #38504a;
    --accent: #2dd4bf;
    --accent-hover: #5eead4;
    --accent-soft: #123430;
    --accent-ink: #0c1210;
    --ok-soft: #10281c;
    --warn-soft: #2b2313;
    --danger-soft: #2c1717;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);
    --shadow: 0 10px 30px rgba(0, 0, 0, .45);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, .55);
  }
}

/* ============================ 2. RESET ============================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  color: var(--ink); background: var(--bg);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility; overflow-x: clip;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; letter-spacing: -0.02em; font-weight: 800; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ============================ 3. UTILIDADES ============================ */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.skip-link {
  position: fixed; top: -100px; left: 1rem; padding: .6rem 1rem;
  background: var(--surface); color: var(--ink); z-index: 9999;
  border-radius: 8px; font-weight: 600; box-shadow: var(--shadow);
}
.skip-link:focus { top: 1rem; }
.section { padding-block: clamp(3rem, 8vw, 5.5rem); }
.section--tint { background: var(--surface-2); }
.section__title { font-size: clamp(1.5rem, 4vw, 2.1rem); }
.section__lead { color: var(--ink-soft); margin-top: .6rem; max-width: 46ch; }
.prose a, .section__lead a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }

/* ============================ 4. TIPOGRAFÍA ============================ */
.prose h3 { font-size: 1.15rem; margin-top: 1.8rem; }
.prose p { color: var(--ink-soft); margin-top: .7rem; max-width: 66ch; }
.prose p strong { color: var(--ink); }
.prose code { background: var(--surface-2); padding: .1rem .35rem; border-radius: 5px; font-size: .9em; }

/* ============================ 5. COMPONENTES ============================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .8rem 1.4rem; border-radius: var(--radius-sm);
  font-weight: 700; font-size: 1rem;
  transition: transform .15s var(--ease-out), background-color .15s var(--ease-out), box-shadow .15s var(--ease-out);
}
.btn--primary { background: var(--accent); color: var(--accent-ink); box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn--primary:active { transform: translateY(0); }
.btn--ghost { background: var(--surface-2); color: var(--ink); border: 1px solid var(--line); }
.btn--ghost:hover { background: var(--line); }
.btn--block { width: 100%; }
.btn--lg { padding: 1.05rem 1.5rem; font-size: 1.08rem; }
.btn[aria-disabled="true"], .btn:disabled { opacity: .5; pointer-events: none; }

.linkbtn { display: inline-block; margin-top: 1rem; color: var(--ink-faint); font-weight: 600; font-size: .9rem; text-decoration: underline; text-underline-offset: 3px; }
.linkbtn:hover { color: var(--ink); }

.field { margin-bottom: 1.3rem; }
.field__label { display: block; font-weight: 700; font-size: .95rem; margin-bottom: .55rem; }
.field__value { color: var(--accent); font-weight: 700; }
.field__opt { color: var(--ink-faint); font-weight: 600; font-size: .8em; }
.field__hint { color: var(--ink-faint); font-size: .84rem; margin-top: .5rem; }
.chipgroup { display: flex; flex-wrap: wrap; gap: .55rem; }
.chip {
  position: relative; display: inline-flex; align-items: center; gap: .4rem;
  padding: .6rem 1rem; border: 1.5px solid var(--line-strong); border-radius: 999px;
  font-weight: 600; font-size: .92rem; cursor: pointer; user-select: none;
  transition: border-color .15s var(--ease-out), background-color .15s var(--ease-out), color .15s var(--ease-out);
}
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip:hover { border-color: var(--accent); }
.chip:has(input:checked) { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.chip:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.chip:has(input:disabled) { opacity: .4; pointer-events: none; }

.range { width: 100%; accent-color: var(--accent); height: 1.6rem; }
.switch { display: flex; align-items: center; gap: .6rem; font-weight: 600; font-size: .92rem; cursor: pointer; }
.switch input { width: 1.1rem; height: 1.1rem; accent-color: var(--accent); }

.advanced { margin-top: -.4rem; }
.advanced summary { cursor: pointer; font-weight: 700; font-size: .9rem; color: var(--ink-soft); padding: .5rem 0; list-style: none; }
.advanced summary::-webkit-details-marker { display: none; }
.advanced summary::before { content: "▸ "; color: var(--accent); }
.advanced[open] summary::before { content: "▾ "; }
.target-row { display: flex; align-items: center; gap: .5rem; margin-top: .6rem; font-size: .9rem; color: var(--ink-soft); flex-wrap: wrap; }
.target-row input { width: 88px; padding: .5rem .6rem; border: 1.5px solid var(--line-strong); border-radius: 8px; background: var(--surface); color: var(--ink); font: inherit; }
.target-row select { padding: .5rem .6rem; border: 1.5px solid var(--line-strong); border-radius: 8px; background: var(--surface); color: var(--ink); font: inherit; }

.cards { display: grid; gap: 1rem; margin-top: 2rem; grid-template-columns: 1fr; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem; box-shadow: var(--shadow-sm);
  transition: transform .18s var(--ease-out), box-shadow .18s var(--ease-out);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card__emoji { font-size: 1.6rem; display: block; margin-bottom: .5rem; }
.card h3 { font-size: 1.08rem; }
.card p { color: var(--ink-soft); margin-top: .4rem; font-size: .95rem; }
.card--soon { opacity: .8; }
.card--link { border-color: var(--accent); }
.card--link:hover { background: var(--accent-soft); }
.tag { display: inline-block; margin-top: .5rem; padding: .15rem .55rem; border-radius: 999px; background: var(--surface-2); color: var(--ink-faint); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }

.steps { display: grid; gap: 1rem; margin-top: 2rem; grid-template-columns: 1fr; list-style: none; padding: 0; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow-sm); }
.step__num { display: inline-flex; align-items: center; justify-content: center; font-size: .9rem; font-weight: 800; color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: .3rem .7rem; margin-bottom: .8rem; }
.step__title { font-size: 1.1rem; }
.step p { color: var(--ink-soft); margin-top: .4rem; font-size: .95rem; }

.faq { margin-top: 2rem; display: grid; gap: .7rem; }
.faq__item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0 1.2rem; overflow: hidden; }
.faq__item summary { cursor: pointer; font-weight: 700; padding: 1.1rem 0; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; font-weight: 700; color: var(--accent); font-size: 1.3rem; line-height: 1; transition: transform .2s var(--ease-out); }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { color: var(--ink-soft); padding-bottom: 1.1rem; font-size: .96rem; }

/* Anuncios */
.ad-slot {
  position: relative; display: flex; align-items: center; justify-content: center;
  border: 1.5px dashed var(--line-strong); border-radius: var(--radius-sm);
  background: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(116,132,124,.06) 12px, rgba(116,132,124,.06) 24px);
  color: var(--ink-faint);
}
.ad-slot__label { font-size: .72rem; font-weight: 800; letter-spacing: .16em; }
.ad-slot--leaderboard { min-height: 110px; margin-top: 2rem; }
.ad-slot--incontent { min-height: 250px; max-width: 520px; margin-inline: auto; margin-block: 1rem; }
.ad-slot--modal { min-height: 220px; width: 100%; margin-block: 1rem; }
.ad-slot--float { min-height: 90px; width: 100%; }

.ad-float {
  position: fixed; right: 1rem; bottom: 1rem; z-index: 80;
  width: 220px; max-width: calc(100vw - 2rem); padding: .9rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-lg);
}
.ad-float__close {
  position: absolute; top: -10px; right: -10px; width: 28px; height: 28px; border-radius: 999px;
  background: var(--ink); color: var(--bg); font-size: 1.1rem; line-height: 1; font-weight: 700;
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow);
}
.ad-modal { border: 0; border-radius: var(--radius-lg); padding: 0; max-width: 440px; width: calc(100vw - 2rem); background: var(--surface); color: var(--ink); box-shadow: var(--shadow-lg); }
.ad-modal::backdrop { background: rgba(6, 12, 10, .55); backdrop-filter: blur(2px); }
.ad-modal__inner { padding: 1.6rem; position: relative; text-align: center; }
.ad-modal__hint { color: var(--ink-soft); font-size: .92rem; margin-bottom: .4rem; }
.ad-modal__close { position: absolute; top: .7rem; right: .9rem; width: 34px; height: 34px; border-radius: 999px; background: var(--surface-2); font-size: 1.3rem; line-height: 1; display: flex; align-items: center; justify-content: center; }
.ad-modal__close:hover { background: var(--line); }

.toast {
  position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%) translateY(1rem);
  background: var(--ink); color: var(--bg); padding: .8rem 1.2rem; border-radius: 999px;
  font-weight: 600; font-size: .9rem; z-index: 200; box-shadow: var(--shadow-lg);
  opacity: 0; transition: opacity .25s var(--ease-out), transform .25s var(--ease-out);
}
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Páginas temáticas (landing) */
.usecase-note {
  margin: 1.2rem auto 0; max-width: 46ch; text-align: center;
  font-size: .86rem; color: var(--ink-soft);
  background: var(--accent-soft); border-radius: var(--radius-sm); padding: .7rem 1rem;
}
.usecase-note strong { color: var(--ink); }
.crosslinks { display: grid; gap: .8rem; margin-top: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .crosslinks { grid-template-columns: repeat(3, 1fr); } }
.crosslinks a {
  display: block; padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--surface); font-weight: 600; font-size: .92rem;
  transition: border-color .15s var(--ease-out), background-color .15s var(--ease-out);
}
.crosslinks a:hover { border-color: var(--accent); background: var(--accent-soft); }
.crosslinks span { display: block; color: var(--ink-faint); font-weight: 500; font-size: .82rem; margin-top: .2rem; }

/* Páginas legales */
.legal { padding-block: clamp(2.5rem, 7vw, 4rem); }
.legal .prose h1 { font-size: clamp(1.7rem, 5vw, 2.4rem); }
.legal .prose h2 { font-size: 1.2rem; margin-top: 2rem; }
.legal .prose ul { margin-top: .7rem; padding-left: 1.2rem; color: var(--ink-soft); }
.legal .prose li { margin-top: .35rem; }
.legal__updated { color: var(--ink-faint); font-size: .85rem; margin-top: .4rem; }
.legal__back { display: inline-block; margin-bottom: 1.5rem; color: var(--accent); font-weight: 600; font-size: .9rem; }
.legal__back:hover { text-decoration: underline; }
.legal .notice--info { background: var(--accent-soft); color: var(--ink); border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent); border-radius: var(--radius-sm); padding: 1rem 1.1rem; margin: 1.5rem 0; font-size: .92rem; }

/* ============================ 6. SECCIONES ============================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: inline-flex; align-items: center; gap: .5rem; font-weight: 800; }
.brand__mark { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 10px; background: var(--accent); color: var(--accent-ink); }
.brand__name { font-size: 1.1rem; letter-spacing: -0.02em; }
.site-nav { display: flex; align-items: center; gap: 1.1rem; font-weight: 600; font-size: .93rem; }
.site-nav a { color: var(--ink-soft); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 5px; text-decoration-color: var(--accent); }
.site-nav__cta { background: var(--accent); color: var(--accent-ink); padding: .5rem 1rem; border-radius: 999px; }
.site-nav__cta:hover { background: var(--accent-hover); }

.hero { padding-top: clamp(2.5rem, 7vw, 4.5rem); padding-bottom: clamp(2rem, 5vw, 3rem); text-align: center; }
.hero__title { font-size: clamp(1.8rem, 5.5vw, 2.9rem); }
.hero__subtitle { color: var(--ink-soft); font-size: clamp(1rem, 2.5vw, 1.15rem); max-width: 44ch; margin: 1rem auto 0; }

.tool-card {
  margin: 2rem auto 0; max-width: 640px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: clamp(1.2rem, 4vw, 1.8rem); text-align: left;
}
.tool-noscript { background: var(--danger-soft); color: var(--danger); padding: 1rem; border-radius: var(--radius-sm); font-weight: 600; text-align: center; }
.tool-note { color: var(--ink-faint); font-size: .86rem; text-align: center; margin-top: .9rem; }

.dropzone {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: .35rem;
  padding: clamp(1.6rem, 6vw, 2.6rem) 1rem;
  border: 2px dashed var(--line-strong); border-radius: var(--radius);
  background: var(--surface-2); cursor: pointer;
  transition: border-color .18s var(--ease-out), background-color .18s var(--ease-out);
}
.dropzone:hover, .dropzone.is-drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone__icon { color: var(--accent); }
.dropzone__title { font-weight: 800; font-size: 1.05rem; }
.dropzone__hint { color: var(--ink-soft); font-size: .9rem; }
.dropzone__link { color: var(--accent); font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }
.dropzone__formats { color: var(--ink-faint); font-size: .76rem; margin-top: .5rem; }

.privacy-badge { display: flex; align-items: center; justify-content: center; gap: .5rem; text-align: center; margin: 1.3rem auto 0; max-width: 46ch; font-size: .9rem; font-weight: 600; color: var(--ink-soft); }
.limits-line { text-align: center; color: var(--ink-faint); font-size: .82rem; max-width: 52ch; margin: .5rem auto 0; }

.site-footer { background: var(--surface); border-top: 1px solid var(--line); padding-block: 2.5rem 2rem; }
.site-footer__inner { display: grid; gap: 1.5rem; }
.site-footer__brand p { color: var(--ink-faint); font-size: .9rem; margin-top: .3rem; max-width: 34ch; }
.site-footer__links { display: flex; flex-wrap: wrap; gap: .6rem 1.2rem; font-size: .9rem; font-weight: 600; }
.site-footer__links a { color: var(--ink-soft); }
.site-footer__links a:hover { color: var(--ink); }
.site-footer__legal { margin-top: 1.8rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.site-footer__legal p { color: var(--ink-faint); font-size: .8rem; margin-top: .4rem; }
.site-footer__credits a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 2px; }

/* ============================ 7. HERRAMIENTA POR LOTES ============================ */
.dz-wrap, .queue, .fatal { display: none; }
.tool-card[data-state="idle"]    .dz-wrap { display: block; }
.tool-card[data-state="ready"]   .queue,
.tool-card[data-state="working"] .queue,
.tool-card[data-state="done"]    .queue { display: block; }
.tool-card[data-state="error"]   .fatal { display: block; }

.queue__options { display: none; }
.tool-card[data-state="ready"] .queue__options { display: block; }
.queue__actions { display: none; gap: .6rem; flex-wrap: wrap; margin-top: 1.2rem; }
.tool-card[data-state="ready"] .queue__actions { display: flex; }
.queue__actions .btn { flex: 1 1 auto; }
.queue__actions .btn--primary { flex-basis: 100%; order: 3; }
.queue__done { display: none; margin-top: 1.2rem; text-align: center; }
.tool-card[data-state="done"] .queue__done { display: block; }
.done-summary { font-weight: 700; margin-bottom: .8rem; }
.done-summary strong { color: var(--accent); }

.filelist { list-style: none; padding: 0; margin: 1.2rem 0 0; display: grid; gap: .6rem; max-height: 340px; overflow-y: auto; }
.tool-card[data-state="working"] .filelist, .tool-card[data-state="done"] .filelist { max-height: 420px; }
.fileitem {
  display: grid; grid-template-columns: 46px 1fr auto; gap: .7rem; align-items: center;
  padding: .6rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface-2);
}
.fileitem__thumb { width: 46px; height: 46px; border-radius: 8px; object-fit: cover; background: var(--line); }
.fileitem__body { min-width: 0; }
.fileitem__name { font-weight: 600; font-size: .88rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fileitem__meta { font-size: .78rem; color: var(--ink-faint); margin-top: .15rem; }
.fileitem__meta .arrow { color: var(--accent); font-weight: 700; }
.fileitem__meta .save { color: var(--ok); font-weight: 700; }
.fileitem__meta .err { color: var(--danger); font-weight: 600; }
.fileitem__bar { grid-column: 1 / -1; height: 6px; border-radius: 999px; background: var(--line); overflow: hidden; margin-top: .1rem; }
.fileitem__bar > span { display: block; height: 100%; width: 0%; background: var(--accent); border-radius: 999px; transition: width .25s var(--ease-out); }
.fileitem.is-done .fileitem__bar, .fileitem.is-error .fileitem__bar { display: none; }
.fileitem.is-error { border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
.fileitem__act { display: flex; align-items: center; }
.iconbtn {
  width: 34px; height: 34px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--surface); border: 1px solid var(--line-strong); color: var(--ink-soft);
}
.iconbtn:hover { color: var(--ink); border-color: var(--accent); }
.iconbtn--dl { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.iconbtn--dl:hover { background: var(--accent-hover); color: var(--accent-ink); }

.engine-note {
  display: flex; align-items: center; gap: .6rem; margin-top: 1rem; padding: .7rem .9rem;
  background: var(--accent-soft); border-radius: var(--radius-sm); font-size: .85rem; color: var(--ink-soft);
}
.engine-note .spinner { width: 18px; height: 18px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 999px; animation: spin .8s linear infinite; flex: 0 0 auto; }
@keyframes spin { to { transform: rotate(360deg); } }

.error-block__icon { display: inline-flex; align-items: center; justify-content: center; width: 54px; height: 54px; border-radius: 999px; margin-bottom: .8rem; background: var(--danger-soft); color: var(--danger); }
.fatal { text-align: center; padding: .8rem 0; }
.error-block__title { font-size: 1.2rem; font-weight: 800; }
.error-block__detail { color: var(--ink-soft); font-size: .92rem; margin: .3rem 0 1.1rem; }

.notice--warn { background: var(--warn-soft); color: var(--warn); border: 1px solid color-mix(in srgb, var(--warn) 30%, transparent); border-radius: var(--radius-sm); padding: .7rem .9rem; font-size: .85rem; margin-top: .8rem; }

/* ============================ 8. RESPONSIVE ============================ */
@media (min-width: 720px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .cards--compact { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .site-footer__inner { grid-template-columns: 1.2fr 2fr; align-items: start; }
  .site-footer__links { justify-content: flex-end; }
  .queue__actions .btn--primary { flex-basis: auto; order: 0; }
}
@media (min-width: 960px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 520px) {
  .site-nav { gap: .75rem; font-size: .82rem; }
  .brand__name { font-size: 1rem; }
}

/* ============================ 9. REDUCED-MOTION ============================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .spinner { animation-duration: 1.4s; }
  /* Se mantienen hover, transiciones de color y la barra de progreso real. */
}