@font-face { font-family: 'Sora'; font-weight: 600; font-style: normal; font-display: swap; src: url('fonts/sora-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Sora'; font-weight: 700; font-style: normal; font-display: swap; src: url('fonts/sora-latin-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'Manrope'; font-weight: 400; font-style: normal; font-display: swap; src: url('fonts/manrope-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Manrope'; font-weight: 600; font-style: normal; font-display: swap; src: url('fonts/manrope-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Manrope'; font-weight: 700; font-style: normal; font-display: swap; src: url('fonts/manrope-latin-700-normal.woff2') format('woff2'); }
/* Concepto: libreta de laboratorio sobre papel crema; azul marino de tinta, degradado azul-morado solo en lo importante, dorado en detalles. */
:root {
  --bg: #F7F5F0; --surface: #FFFEFB; --ink: #162862; --ink-2: #4A5680; --line: #E2DDCF;
  --primary: #26428C; --on-primary: #FFFFFF; --grad-a: #3D5FB9; --grad-b: #A551DF;
  --gold: #A37B33; --gold-ink: #7A5A1C; --chip: #ECE9F6; --chip-on: #162862;
  --ok: #1F7A4D; --warn-bg: #FFF3DC; --warn: #8A4B00; --bad-bg: #FDE7E4; --bad: #A3231A; --focus: #A551DF;
  --logo-0: #162862; --f-display: 'Sora', 'Segoe UI', system-ui, sans-serif; --f-body: 'Manrope', 'Segoe UI', system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #0B1230; --surface: #131C45; --ink: #EDEFFA; --ink-2: #A9B2D6; --line: #27316A;
  --logo-0: #8FA6F2; --primary: #7C97EE; --on-primary: #0B1230; --grad-a: #6F8CE6; --grad-b: #C07BF0;
  --gold: #E8C97A; --gold-ink: #E8C97A; --chip: #1D2858; --chip-on: #EDEFFA;
  --ok: #5FD39A; --warn-bg: #3A2A0B; --warn: #F0B25A; --bad-bg: #3F1714; --bad: #FF9A92; --focus: #C07BF0; color-scheme: dark; } }
:root[data-theme="dark"] {
  --bg: #0B1230; --surface: #131C45; --ink: #EDEFFA; --ink-2: #A9B2D6; --line: #27316A;
  --logo-0: #8FA6F2; --primary: #7C97EE; --on-primary: #0B1230; --grad-a: #6F8CE6; --grad-b: #C07BF0;
  --gold: #E8C97A; --gold-ink: #E8C97A; --chip: #1D2858; --chip-on: #EDEFFA;
  --ok: #5FD39A; --warn-bg: #3A2A0B; --warn: #F0B25A; --bad-bg: #3F1714; --bad: #FF9A92; --focus: #C07BF0; color-scheme: dark; }
* { box-sizing: border-box; }
body { background: var(--bg); color: var(--ink); font-family: var(--f-body); font-size: 16px; line-height: 1.5;
  padding-block: 0 88px; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.wrap { max-width: 760px; margin: 0 auto; }
h1, h2, h3 { font-family: var(--f-display); margin: 0; text-wrap: balance; letter-spacing: -0.01em; }
h2 { font-size: 1.35rem; } h3 { font-size: 1.05rem; }
p { margin: 0; }
.muted { color: var(--ink-2); } .small { font-size: .875rem; }
.num { font-variant-numeric: tabular-nums; }
.top { display: flex; align-items: center; gap: 12px; padding-block: 16px 8px; }
.top svg { flex: none; }
.brand { font-family: var(--f-display); font-weight: 700; font-size: 1.15rem; line-height: 1.1; }
.brand small { display: block; font-family: var(--f-body); font-weight: 600; font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--gold-ink); }
.stack { display: flex; flex-direction: column; gap: 16px; padding-block: 8px 24px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.hero { background: linear-gradient(135deg, var(--grad-a), var(--grad-b)); color: #fff; border: 0; }
.hero .muted { color: rgba(255,255,255,.82); }
.eyebrow { font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--gold-ink); }
.hero .eyebrow { color: #FFE9B0; }
.big { font-family: var(--f-display); font-weight: 700; font-size: 2.6rem; line-height: 1; font-variant-numeric: tabular-nums; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row > * { min-width: 0; }
.grow { flex: 1 1 140px; }
label { font-weight: 700; font-size: .9rem; display: block; margin-bottom: 4px; }
input, select, textarea { width: 100%; font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 11px 12px; min-height: 44px; }
textarea { min-height: 72px; resize: vertical; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.btn { font: inherit; font-weight: 700; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); padding: 11px 16px; min-height: 44px; cursor: pointer; }
.btn.primary { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.link { border: 0; background: none; color: var(--primary); padding-inline: 4px; text-decoration: underline; min-height: 36px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { font: inherit; font-weight: 700; background: var(--chip); color: var(--chip-on); border: 1px solid transparent; border-radius: 999px; padding: 8px 14px; min-height: 40px; cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--primary); color: var(--on-primary); }
.resultado { border: 1px dashed var(--gold); border-radius: 14px; padding: 16px; display: flex; flex-direction: column; gap: 8px; background: var(--surface); }
.aviso { border-radius: 10px; padding: 10px 12px; font-size: .9rem; }
.aviso.aviso-aviso { background: var(--warn-bg); color: var(--warn); }
.aviso.aviso-alto { background: var(--bad-bg); color: var(--bad); font-weight: 600; }
.lista { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.lista li { display: flex; gap: 12px; justify-content: space-between; align-items: flex-start; padding: 12px 0; border-top: 1px solid var(--line); }
.lista li:first-child { border-top: 0; }
.lista .t { font-weight: 700; } .lista .s { color: var(--ink-2); font-size: .875rem; }
.pill { font-size: .75rem; font-weight: 700; border-radius: 999px; padding: 2px 10px; background: var(--chip); color: var(--chip-on); white-space: nowrap; }
.banner { background: var(--warn-bg); color: var(--warn); border-radius: 12px; padding: 10px 14px; font-size: .9rem; display: flex; gap: 10px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
details { border-top: 1px solid var(--line); padding-block: 10px; }
summary { cursor: pointer; font-weight: 700; min-height: 32px; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2); }
.scroll-x { overflow-x: auto; }
ul.pts { margin: 6px 0 0; padding-left: 20px; display: flex; flex-direction: column; gap: 4px; }
.tabs { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; background: var(--surface); border-top: 1px solid var(--line);
  display: flex; justify-content: space-around; padding: 6px max(8px, env(safe-area-inset-left, 0px)) calc(6px + env(safe-area-inset-bottom, 0px)); }
.tabs button { font: inherit; font-size: .72rem; font-weight: 700; background: none; border: 0; color: var(--ink-2); display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 8px; min-width: 56px; min-height: 48px; cursor: pointer; border-radius: 10px; }
.tabs button[aria-current="page"] { color: var(--primary); }
.tabs button[aria-current="page"] svg { stroke: var(--primary); }
.tabs svg { width: 22px; height: 22px; stroke: var(--ink-2); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.toast { position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(84px + env(safe-area-inset-bottom, 0px)); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-weight: 600; z-index: 30; max-width: calc(100% - 32px); }
@media (min-width: 900px) {
  body { padding-block: 0 32px; padding-left: calc(max(16px, env(safe-area-inset-left, 0px)) + 96px); }
  .tabs { top: 0; right: auto; bottom: 0; width: 88px; flex-direction: column; justify-content: flex-start; gap: 6px; border-top: 0; border-right: 1px solid var(--line); padding-top: 24px; }
  .toast { bottom: 24px; }
}
@media (prefers-reduced-motion: no-preference) { .tabs button, .btn, .chip { transition: background-color .15s, color .15s; } }