:root {
  --ink: #13213C;
  --ink-2: #3B4A63;
  --muted: #5A6880;
  --ground: #FFFFFF;
  --soft: #F3F7F4;
  --panel: #F7F9FB;
  --card: #FFFFFF;
  --line: #DCE3EC;
  --line-strong: #B7C3D2;
  --green: #0B7A4B;
  --green-ink: #0B5E3A;
  --green-soft: #DDF0E5;
  --warn-ink: #9A4A0E;
  --focus: #F2A93B;
  --on-accent: #FFFFFF;
  --shadow-ink: #13213C;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #E8EEF6; --ink-2: #C3CDDB; --muted: #A3B0C2; --ground: #0F1726; --soft: #141F33; --panel: #18243A;
    --card: #1B2840; --line: #2C3A55; --line-strong: #43547A; --green: #22A06B; --green-ink: #7DDCAE;
    --green-soft: #143B2B; --warn-ink: #F0A56B; --shadow-ink: #000000; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ink: #E8EEF6; --ink-2: #C3CDDB; --muted: #A3B0C2; --ground: #0F1726; --soft: #141F33; --panel: #18243A;
  --card: #1B2840; --line: #2C3A55; --line-strong: #43547A; --green: #22A06B; --green-ink: #7DDCAE;
  --green-soft: #143B2B; --warn-ink: #F0A56B; --shadow-ink: #000000; color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 16px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body {
  margin: 0; background: var(--ground); color: var(--ink);
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px; line-height: 1.55;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
img { max-width: 100%; display: block; }
a { color: var(--green-ink); }
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--ink); color: var(--ground); padding: 10px 14px; border-radius: 10px; z-index: 20; }
.skip:focus { top: 12px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
[hidden] { display: none !important; }

/* Encabezado */
.site-header { background: var(--ground); border-bottom: 1px solid var(--line); padding-top: env(safe-area-inset-top, 0px); }
.header-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding-top: 14px; padding-bottom: 14px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 40px; height: 40px; border-radius: 12px; background: var(--green); display: grid; place-items: center; }
.brand-name { font-size: 20px; font-weight: 800; letter-spacing: -0.02em; }
.nav { display: flex; flex-wrap: wrap; gap: 4px; }
.nav a { padding: 10px 12px; font-weight: 600; font-size: 15px; color: var(--ink-2); text-decoration: none; border-radius: 10px; }
.nav a:hover { background: var(--panel); color: var(--ink); }

/* Botones */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 52px; padding: 0 24px; border-radius: 14px; font-weight: 700; font-size: 16px; text-decoration: none; cursor: pointer; border: 0; }
.btn-primary { background: var(--green); color: var(--on-accent); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-outline { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); min-height: 46px; padding: 0 18px; }
.btn-outline:hover { background: var(--panel); }

/* Portada */
.hero { background: var(--soft); }
.hero-inner { padding-top: 64px; padding-bottom: 56px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 18px; }
.pill { margin: 0; font-size: 14px; font-weight: 700; color: var(--green-ink); background: var(--green-soft); padding: 8px 14px; border-radius: 999px; }
h1 { margin: 0; font-size: clamp(34px, 5.2vw, 58px); line-height: 1.07; font-weight: 800; letter-spacing: -0.03em; max-width: 16ch; }
.lead { margin: 0; font-size: clamp(17px, 2vw, 19px); color: var(--ink-2); max-width: 60ch; }

.mode-switch { display: inline-flex; gap: 4px; padding: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; margin-top: 8px; }
.mode-switch button { min-height: 44px; padding: 0 16px; border: 0; border-radius: 10px; background: transparent; font-weight: 700; font-size: 15px; color: var(--ink-2); cursor: pointer; }
.mode-switch button[aria-selected="true"] { background: var(--ink); color: var(--ground); }

.panel { width: 100%; max-width: 780px; display: flex; flex-direction: column; gap: 22px; align-items: center; }

/* El buscador: la pieza memorable, con sombra sólida desplazada */
.searchbar { width: 100%; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; background: var(--card); border: 2px solid var(--ink); border-radius: 20px; padding: 8px 8px 8px 16px; box-shadow: 0 6px 0 var(--shadow-ink); }
.search-icon { color: var(--muted); flex: 0 0 auto; }
.searchbar input { flex: 1 1 220px; min-width: 0; border: 0; outline: none; background: transparent; font-size: 18px; padding: 14px 4px; }
.searchbar input::placeholder { color: var(--muted); }
.searchbar .btn { flex: 0 0 auto; }
@media (max-width: 560px) { .searchbar .btn { flex: 1 1 100%; } }

.popular { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px; }
.popular > span { font-size: 14px; font-weight: 600; color: var(--muted); }
.chip { min-height: 44px; padding: 0 16px; border: 1px solid var(--line-strong); background: var(--card); border-radius: 999px; font-size: 14px; font-weight: 600; cursor: pointer; }
.chip:hover { border-color: var(--ink); }

.drop { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 40px 20px; background: var(--card); border: 2.5px dashed var(--line-strong); border-radius: 24px; cursor: pointer; }
.drop.dragging { border-color: var(--green); background: var(--green-soft); }
.drop-icon { width: 76px; height: 76px; border-radius: 999px; background: var(--green-soft); color: var(--green-ink); display: grid; place-items: center; }
.drop-title { font-size: 21px; font-weight: 800; }
.drop-sub { font-size: 15px; color: var(--muted); max-width: 46ch; }
.tips { margin: 0; font-size: 14px; color: var(--muted); }

/* Resultados */
.results-area { background: var(--soft); border-top: 1px solid var(--line); padding: 40px 0 64px; }
.results-area .wrap { display: flex; flex-direction: column; gap: 20px; }
.results-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 14px; }
.results-head h2 { margin: 2px 0 0; font-size: clamp(24px, 3vw, 30px); font-weight: 800; letter-spacing: -0.02em; overflow-wrap: anywhere; }
.muted-strong { margin: 0; font-size: 14px; font-weight: 700; color: var(--muted); }
#results { display: flex; flex-direction: column; gap: 16px; }
.sort { display: flex; flex-wrap: wrap; gap: 4px; padding: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
.sort button { min-height: 42px; padding: 0 14px; border: 0; border-radius: 10px; background: transparent; font-weight: 700; font-size: 14px; color: var(--ink-2); cursor: pointer; }
.sort button[aria-pressed="true"] { background: var(--ink); color: var(--ground); }
.store-filter { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.store-filter > span { font-size: 14px; font-weight: 600; color: var(--ink-2); }
.store-chip { min-height: 44px; padding: 0 16px; border-radius: 999px; font-weight: 700; font-size: 14px; cursor: pointer; background: var(--card); color: var(--muted); border: 1.5px solid var(--line-strong); }
.store-chip[aria-pressed="true"] { background: var(--green-soft); color: var(--green-ink); border-color: var(--green); }
.store-chip[aria-pressed="true"]::before { content: "✓ "; }

.notice { margin: 0; padding: 14px 16px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); color: var(--ink-2); font-size: 15px; }
.notice-error { border-color: var(--warn-ink); color: var(--warn-ink); }
.loading { font-weight: 700; color: var(--ink-2); }

.thumb { background: var(--panel); border-radius: 16px; object-fit: cover; flex: 0 0 auto; }
.thumb-empty { display: grid; place-items: center; color: var(--muted); }

.best { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; background: var(--card); border: 2px solid var(--green); border-radius: 24px; padding: 22px; }
.best .thumb { width: 140px; height: 140px; }
.best-info { flex: 1 1 280px; min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.best-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.badge { font-size: 13px; font-weight: 800; color: var(--on-accent); background: var(--green); padding: 5px 12px; border-radius: 999px; }
.saving { font-size: 14px; font-weight: 700; color: var(--green-ink); }
.best h3 { margin: 0; font-size: 21px; line-height: 1.3; overflow-wrap: anywhere; }
.meta { margin: 0; font-size: 15px; color: var(--ink-2); }
.best-buy { flex: 0 1 230px; display: flex; flex-direction: column; gap: 10px; }
.total-label { font-size: 14px; font-weight: 600; color: var(--muted); }
.total-big { font-size: 40px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }

.others-title { margin: 8px 0 0; font-size: 19px; }
.others { display: flex; flex-direction: column; gap: 10px; }
.offer { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 14px 16px; }
.offer .thumb { width: 64px; height: 64px; border-radius: 12px; }
.offer-info { flex: 1 1 240px; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.offer-store { font-weight: 700; }
.offer-title { font-size: 15px; color: var(--ink-2); overflow-wrap: anywhere; }
.offer-sub { font-size: 14px; color: var(--muted); }
.offer-buy { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.offer-price { text-align: right; }
.offer-total { font-size: 21px; font-weight: 800; }
.offer-diff { font-size: 13px; font-weight: 600; color: var(--warn-ink); }

/* Escaneo y producto detectado */
.scan, .detected { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: 24px; }
.scan-photo { position: relative; width: 200px; height: 200px; border-radius: 18px; overflow: hidden; background: var(--panel); border: 3px solid var(--green); }
.scan-photo img { width: 100%; height: 100%; object-fit: cover; }
.scan-line { position: absolute; left: 10px; right: 10px; height: 3px; border-radius: 3px; background: var(--green); top: 10%; animation: scan 1.6s ease-in-out infinite alternate; }
@keyframes scan { to { top: 88%; } }
.scan-steps { flex: 1 1 260px; }
.scan-steps h2 { margin: 0 0 12px; font-size: 24px; }
.scan-steps ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.scan-steps li { display: flex; align-items: center; gap: 12px; font-weight: 600; color: var(--muted); }
.scan-steps li::before { content: ""; width: 24px; height: 24px; flex: 0 0 24px; border-radius: 999px; border: 2px solid var(--line-strong); box-sizing: border-box; }
.scan-steps li.active { color: var(--ink); }
.scan-steps li.active::before { border: 3px solid var(--green); }
.scan-steps li.done { color: var(--ink); }
.scan-steps li.done::before { content: "✓"; border: 0; background: var(--green); color: var(--on-accent); display: grid; place-items: center; font-size: 14px; font-weight: 800; }

.detected img { width: 110px; height: 110px; border-radius: 16px; object-fit: cover; background: var(--panel); }
.detected-info { flex: 1 1 280px; min-width: 0; }
.detected-kicker { margin: 0; font-size: 14px; font-weight: 700; color: var(--green-ink); }
.detected h2 { margin: 4px 0 10px; font-size: 24px; letter-spacing: -0.02em; }
.attrs { display: flex; flex-wrap: wrap; gap: 6px; }
.attrs span { font-size: 14px; font-weight: 600; padding: 5px 12px; border-radius: 999px; background: var(--panel); }

/* Secciones informativas */
.how { padding: 64px 0; }
.how h2, .stores h2 { margin: 0 0 24px; font-size: clamp(24px, 3vw, 30px); font-weight: 800; letter-spacing: -0.02em; }
.how h2 { text-align: center; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; counter-reset: paso; }
.steps li { background: var(--panel); border-radius: 20px; padding: 26px; counter-increment: paso; }
.steps li::before { content: counter(paso); display: grid; place-items: center; width: 44px; height: 44px; border-radius: 999px; background: var(--ink); color: var(--ground); font-weight: 800; font-size: 18px; margin-bottom: 14px; }
.steps h3 { margin: 0 0 6px; font-size: 20px; }
.steps p { margin: 0; color: var(--ink-2); }

.stores { background: var(--soft); padding: 56px 0; }
.stores-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.stores h2 { margin-bottom: 8px; }
.stores p { margin: 0; color: var(--ink-2); max-width: 52ch; }
.store-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.store-list li { padding: 12px 20px; border-radius: 14px; background: var(--card); border: 1.5px solid var(--line-strong); font-weight: 800; font-size: 17px; }

/* Pie */
.site-footer { background: #13213C; color: #D6DEE9; }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; padding-top: 40px; padding-bottom: 40px; }
.footer-about { max-width: 560px; }
.footer-about p { margin: 0 0 8px; font-size: 14px; }
.footer-brand { font-size: 18px !important; font-weight: 800; color: #FFFFFF; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-start; }
.footer-nav a { color: #FFFFFF; font-weight: 600; font-size: 14px; }

/* Página de privacidad */
.doc { max-width: 760px; margin: 0 auto; padding: 48px 24px 72px; }
.doc h1 { font-size: clamp(30px, 4vw, 40px); max-width: none; margin-bottom: 8px; }
.doc h2 { font-size: 21px; margin: 32px 0 8px; }
.doc p, .doc li { color: var(--ink-2); }