/* Lupa Luz — una sola columna, como leer una factura de arriba abajo:
   cabecera, subida, informe con escala de etiqueta energética, funciones Pro. */
:root {
  --paper: #f5f6f2;
  --surface: #ffffff;
  --ink: #15233b;
  --ink-soft: #4b5a70;
  --line: #d9ddd5;
  --brand: #0e5a66;
  --brand-ink: #ffffff;
  --brand-soft: #e2eff0;
  --punta: #c4461b;
  --llano: #c99512;
  --valle: #2f7d4f;
  --g-a: #1a9850; --g-b: #66bd63; --g-c: #a6c94a; --g-d: #f2a23a; --g-e: #ec6a3c; --g-f: #d0312d;
  --danger: #b42318;
  --save: #2f7d4f; --save-strong: #c4461b;
  --shadow: 0 1px 2px rgba(21, 35, 59, .06), 0 8px 24px rgba(21, 35, 59, .06);
  --f-display: "Archivo", "Arial Narrow", system-ui, sans-serif;
  --f-body: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-data: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --r: 10px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0f1622; --surface: #172131; --ink: #e8edf3; --ink-soft: #a6b2c3; --line: #2a3648;
    --brand: #5cc3cf; --brand-ink: #062a30; --brand-soft: #16343a; --danger: #ff8a7a;
    --save: #6fd39a; --save-strong: #ff8f63;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0f1622; --surface: #172131; --ink: #e8edf3; --ink-soft: #a6b2c3; --line: #2a3648;
  --brand: #5cc3cf; --brand-ink: #062a30; --brand-soft: #16343a; --danger: #ff8a7a;
  --save: #6fd39a; --save-strong: #ff8f63;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.55 var(--f-body);
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
a { color: var(--brand); }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
.wrap { max-width: 760px; margin: 0 auto; }

/* Cabecera */
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-block: 18px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.logo svg { width: 30px; height: 30px; }
.logo b { font: 800 21px/1 var(--f-display); font-stretch: 112%; letter-spacing: -.01em; }
.top small { color: var(--ink-soft); font-size: 13px; }

/* Portada */
.hero { padding-block: 20px 8px; display: grid; gap: 18px; }
.hero h1 { font: 800 clamp(30px, 6vw, 46px)/1.05 var(--f-display); font-stretch: 108%; letter-spacing: -.02em; margin: 0; text-wrap: balance; }
.hero p.lead { margin: 0; font-size: 18px; color: var(--ink-soft); max-width: 58ch; }

.drop {
  border: 2px dashed var(--line); border-radius: 14px; background: var(--surface);
  padding: 26px 20px; display: grid; gap: 12px; justify-items: center; text-align: center;
  transition: border-color .15s, background .15s;
}
.drop.over { border-color: var(--brand); background: var(--brand-soft); }
.drop strong { font: 700 18px/1.3 var(--f-display); }
.drop .hint { color: var(--ink-soft); font-size: 14px; margin: 0; }
.btn {
  appearance: none; border: 0; border-radius: 999px; cursor: pointer;
  font: 700 16px/1 var(--f-body); padding: 14px 22px; min-height: 48px;
  background: var(--brand); color: var(--brand-ink); display: inline-flex; align-items: center; gap: 8px;
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--brand); border: 1.5px solid var(--brand); }
.btn.link { background: none; color: var(--brand); padding: 6px 4px; min-height: 0; text-decoration: underline; font-weight: 600; }
.alt { display: flex; flex-wrap: wrap; gap: 6px 16px; justify-content: center; }
.privacy-note { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--ink-soft); margin: 0; max-width: 52ch; }
.privacy-note svg { flex: none; width: 16px; height: 16px; margin-top: 2px; }

.status { display: flex; gap: 12px; align-items: center; padding: 16px; border-radius: var(--r); background: var(--brand-soft); }
.status.error { background: transparent; border: 1.5px solid var(--danger); color: var(--ink); }
.spinner { width: 22px; height: 22px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--brand); animation: spin .8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Formulario manual */
.manual { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; display: grid; gap: 16px; }
.manual h2 { margin: 0; font: 700 20px/1.2 var(--f-display); }
.manual fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; }
.manual legend { font: 700 13px/1.4 var(--f-body); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); margin-bottom: 6px; }
.grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
label.f { display: grid; gap: 4px; font-size: 14px; font-weight: 600; min-width: 0; }
label.f span.u { font-weight: 400; color: var(--ink-soft); }
input, select {
  font: 16px var(--f-body); color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--line); border-radius: 8px; padding: 10px 12px; width: 100%; min-width: 0;
}
input:focus, select:focus { border-color: var(--brand); outline: none; }
.row-end { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* Informe */
.report { margin-block: 28px; background: var(--surface); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; }
.report-head { padding: 22px 22px 6px; display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; }
.eyebrow { font: 700 12px/1.3 var(--f-body); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); }
.tag { font: 700 12px/1 var(--f-body); padding: 6px 10px; border-radius: 999px; background: var(--brand-soft); color: var(--ink); }

.verdict { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px 24px; padding: 10px 22px 22px; align-items: center; }
.verdict h2 { margin: 0; font: 800 clamp(26px, 5vw, 36px)/1.1 var(--f-display); font-stretch: 105%; text-wrap: balance; }
.verdict .sub { margin: 6px 0 0; color: var(--ink-soft); }
.money { white-space: nowrap; font-variant-numeric: tabular-nums; color: var(--save-strong); }

/* Escala tipo etiqueta energética */
.scale { display: grid; gap: 4px; width: 200px; }
.bar { position: relative; height: 26px; display: flex; align-items: center; color: #fff; font: 800 15px/1 var(--f-display); padding-left: 10px;
  clip-path: polygon(0 0, calc(100% - 13px) 0, 100% 50%, calc(100% - 13px) 100%, 0 100%); }
.bar:nth-child(1) { width: 52%; background: var(--g-a); }
.bar:nth-child(2) { width: 61%; background: var(--g-b); }
.bar:nth-child(3) { width: 70%; background: var(--g-c); }
.bar:nth-child(4) { width: 79%; background: var(--g-d); }
.bar:nth-child(5) { width: 88%; background: var(--g-e); }
.bar:nth-child(6) { width: 97%; background: var(--g-f); }
.bar:nth-child(2), .bar:nth-child(3), .bar:nth-child(4) { color: #15233b; }
.bar.me { outline: 3px solid var(--ink); outline-offset: 0; height: 34px; font-size: 19px; }
.bar.me::after { content: "TU FACTURA"; position: absolute; left: 34px; font: 700 10px/1 var(--f-body); letter-spacing: .06em; }
.scale.dim .bar:not(.me) { opacity: .55; }

.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); border-top: 1px solid var(--line); }
.fact { padding: 14px 22px; border-bottom: 1px solid var(--line); min-width: 0; }
.fact dt { font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; font-weight: 700; }
.fact dd { margin: 4px 0 0; font: 600 20px/1.2 var(--f-data); font-variant-numeric: tabular-nums; }

.periods { padding: 16px 22px; border-bottom: 1px solid var(--line); display: grid; gap: 8px; }
.pbar { display: flex; height: 14px; border-radius: 7px; overflow: hidden; background: var(--line); }
.pbar span { display: block; height: 100%; }
.plegend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; color: var(--ink-soft); }
.plegend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }

.recs { list-style: none; margin: 0; padding: 8px 0; }
.rec { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 4px 14px; padding: 16px 22px; border-bottom: 1px solid var(--line); align-items: start; }
.rec:last-child { border-bottom: 0; }
.rec .n { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font: 800 14px/1 var(--f-display); background: var(--brand-soft); color: var(--ink); }
.rec h3 { margin: 2px 0 0; font: 700 17px/1.3 var(--f-body); }
.rec p { margin: 4px 0 0; color: var(--ink-soft); font-size: 15px; grid-column: 2 / 4; }
.rec .save { font: 600 17px/1.3 var(--f-data); color: var(--save); white-space: nowrap; text-align: right; }
.rec .save small { display: block; font: 500 11px/1.2 var(--f-body); color: var(--ink-soft); }
.rec.tip .save { color: var(--ink-soft); }

.report-foot { padding: 16px 22px 22px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); }
.fine { font-size: 13px; color: var(--ink-soft); margin: 0; max-width: 60ch; }

/* Pro: puertas falsas */
.pro { margin-block: 36px; display: grid; gap: 16px; }
.pro h2 { margin: 0; font: 800 26px/1.15 var(--f-display); font-stretch: 105%; }
.pro > p { margin: 0; color: var(--ink-soft); }
.doors { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 170px), 1fr)); }
.door {
  text-align: left; cursor: pointer; display: grid; gap: 6px; align-content: start;
  background: var(--surface); color: var(--ink); border: 1.5px solid var(--line); border-radius: 12px; padding: 16px;
  font: inherit; transition: border-color .15s, transform .15s;
}
.door:hover { border-color: var(--brand); transform: translateY(-1px); }
.door b { font: 700 16px/1.3 var(--f-body); }
.door span { font-size: 14px; color: var(--ink-soft); }
.door em { font-style: normal; font: 700 11px/1 var(--f-body); letter-spacing: .08em; color: var(--brand); text-transform: uppercase; }

/* Modal */
.modal-bg { position: fixed; inset: 0; background: rgba(10, 16, 28, .55); display: grid; place-items: center; padding: 16px; z-index: 50; }
.modal { background: var(--surface); color: var(--ink); border-radius: 16px; padding: 24px; width: min(460px, 100%); display: grid; gap: 14px; box-shadow: var(--shadow); }
.modal h3 { margin: 0; font: 800 22px/1.2 var(--f-display); }
.modal p { margin: 0; color: var(--ink-soft); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.check input { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

footer { border-top: 1px solid var(--line); margin-top: 40px; padding-block: 22px 40px; font-size: 13px; color: var(--ink-soft); display: grid; gap: 8px; }
footer nav { display: flex; flex-wrap: wrap; gap: 16px; }

@media (max-width: 560px) {
  .verdict { grid-template-columns: 1fr; }
  .scale { width: 100%; max-width: 260px; }
  .rec { grid-template-columns: auto minmax(0, 1fr); }
  .rec .save { grid-column: 2; text-align: left; }
  .rec p { grid-column: 2; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation-duration: 0s !important; } }