/* ==========================================================================
   FlowSentry — hoja de estilos
   Sistema: Source Serif 4 (titulares) + Inter (cuerpo/UI)
   Paleta: ink/navy (estructura) + ámbar (marca y acción)
   ========================================================================== */

:root {
  /* — estructura — */
  --ink: #0B1B34;
  --navy-deep: #071B36;
  --navy-deep-2: #0A2344;

  /* — marca / acción — */
  --accent: #A8611A;
  --accent-deep: #7A470F;
  --accent-light: #E3B47F;

  /* — superficies — */
  --paper: #F5F7FB;
  --paper-2: #EBEFF6;
  --line: #DCE3ED;
  --line-dark: rgba(227, 180, 127, .18);

  /* — texto secundario — */
  --muted: #5B6B82;
  --muted-dark: #93A7BF;

  /* — estados funcionales (score, formulario) — */
  --success: #2F9E6E;
  --warning: #B08A2E;
  --danger: #B14A3F;

  /* — tipografía — */
  --serif: 'Source Serif 4', Georgia, serif;
  --sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
}

/* ==========================================================================
   Reset y base
   ========================================================================== */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
}

a { text-decoration: none; color: inherit; }

.container { width: min(1120px, 92%); margin: auto; }

p { color: var(--muted); max-width: 62ch; }

h1, h2, h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  color: var(--ink);
}

h2 {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.14;
  letter-spacing: -.01em;
  margin-bottom: 14px;
}

/* utilidades puntuales (evitan estilos inline -> CSP más estricta) */
.u-h3-tight { font-size: 18px; margin-bottom: 14px; }
.u-p-tight { font-size: 14px; margin: 0; }
.u-h2-price { font-size: 26px; }
.u-badge-sm { width: 22px; height: 22px; border-width: 1.2px; }
.u-fs-xs { font-size: 8px; }
.u-footer-links { display: flex; gap: 18px; align-items: center; }
.u-underline { text-decoration: underline; }

/* ==========================================================================
   Navegación
   ========================================================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 247, 251, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.lockup { display: inline-flex; align-items: center; gap: 11px; }
.badge-circle {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1.5px solid var(--ink);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.badge-circle .fs { font-family: var(--serif); font-weight: 600; font-size: 12px; }
.badge-circle .f { color: var(--ink); }
.badge-circle .s { color: var(--accent); }
.wordmark { font-family: var(--serif); font-weight: 600; font-size: 18px; }
.wordmark .flow { color: var(--ink); }
.wordmark .sentry { color: var(--accent); }
.nav-links { display: flex; gap: 26px; color: var(--muted); font-size: 14.5px; }
.nav-links a:hover { color: var(--ink); }

/* ==========================================================================
   Botones
   ========================================================================== */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 19px; border-radius: 8px;
  font-family: var(--sans); font-weight: 600; font-size: 14.5px;
  border: 1px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-secondary { border: 1px solid var(--line); color: var(--ink); background: transparent; }
.dark .btn-secondary, .hero .btn-secondary { border-color: rgba(255, 255, 255, .3); color: #fff; }
.btn-accent { background: var(--accent); color: #fff; }

/* ==========================================================================
   Hero — página de portada, sin rail ni eyebrow
   ========================================================================== */

.hero {
  background: linear-gradient(165deg, #071B36 0%, #0A2344 100%);
  color: #fff;
  padding: 96px 0 84px;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.hero h1 { font-size: clamp(38px, 4.6vw, 58px); line-height: 1.08; letter-spacing: -.01em; color: #fff; max-width: 600px; }
.hero p.lead { max-width: 520px; font-size: 18px; color: var(--muted-dark); margin: 22px 0 30px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { font-size: 13px; color: #7C90AC; margin-top: 18px; }

/* el único elemento con boldness deliberado: el score card */
.score-card { background: #fff; color: var(--ink); border-radius: 16px; padding: 26px; border: 1px solid var(--line); }
.score-top { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; margin-bottom: 18px; }
.score-top .l1 { display: block; color: var(--muted); font-size: 12.5px; }
.score-top h3 { font-size: 18px; margin: 4px 0 0; font-weight: 600; }
.example-badge { padding: 5px 10px; border-radius: 20px; background: var(--paper-2); color: var(--muted); font-size: 11px; }
.big-score { display: grid; grid-template-columns: 86px 1fr; gap: 18px; align-items: center; padding: 16px; border-radius: 10px; background: var(--paper-2); }
.score-ring {
  width: 76px; height: 76px; border-radius: 50%;
  display: grid; place-items: center;
  background: conic-gradient(var(--accent) 0 71%, var(--line) 71% 100%);
  position: relative;
}
.score-ring::after { content: ""; position: absolute; inset: 7px; background: #fff; border-radius: 50%; }
.score-ring strong { position: relative; z-index: 1; font-family: var(--serif); font-size: 23px; font-weight: 600; }
.big-score .risk { margin: 2px 0 3px; font-weight: 600; font-size: 15px; }
.big-score p { margin: 0; font-size: 13px; }
.metrics { margin-top: 16px; }
.metric { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-top: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.metric span { font-size: 13.5px; color: var(--muted); }
.metric b { font-size: 13.5px; font-weight: 600; }
.good { color: var(--success); }
.warn { color: var(--warning); }
.bad { color: var(--danger); }

/* ==========================================================================
   Secciones documento — rail + contenido, evita el "card kit" repetido
   ========================================================================== */

.section { padding: 76px 0; border-bottom: 1px solid var(--line); }
.section.soft { background: var(--paper-2); }
.section.dark { background: var(--navy-deep); color: #fff; border-bottom: 1px solid var(--line-dark); }
.section.dark p { color: var(--muted-dark); }
.section.dark h2 { color: #fff; }

.doc { display: grid; grid-template-columns: 150px 1fr; gap: 40px; align-items: start; }
.rail { position: relative; }
.rail .n { font-family: var(--serif); font-style: italic; font-size: 30px; color: var(--accent); line-height: 1; }
.dark .rail .n { color: var(--accent-light); }
.rail .l { font-size: 13px; color: var(--muted); margin-top: 6px; }
.dark .rail .l { color: var(--muted-dark); }

.doc-content > p { font-size: 16.5px; max-width: 60ch; }

/* dimensiones — lista fluida, no cards, sin numeración falsa */
.dim-list { margin-top: 26px; }
.dim-row { display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding: 18px 0; border-top: 1px solid var(--line); }
.dim-row:last-child { border-bottom: 1px solid var(--line); }
.dim-row h3 { font-size: 17px; font-weight: 600; }
.dim-row p { margin: 0; font-size: 14px; }

/* producto / límites del servicio */
.product { display: grid; grid-template-columns: 1fr .85fr; gap: 34px; margin-top: 26px; }
.feature-list { display: grid; gap: 12px; }
.feature { display: grid; grid-template-columns: 18px 1fr; gap: 11px; align-items: baseline; }
.feature .m { color: var(--accent); font-family: var(--serif); font-style: italic; }
.feature span { color: var(--ink); font-size: 15px; }
.boundary { padding-left: 22px; border-left: 2px solid var(--line); }
.boundary h3 { font-size: 17px; margin-bottom: 8px; font-weight: 600; }
.boundary ul { padding-left: 16px; margin: 12px 0 0; color: var(--muted); }
.boundary li { margin: 7px 0; font-size: 14px; }

/* pasos — secuencia legítima, la numeración está justificada */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; margin-top: 28px; }
.step .n { font-family: var(--serif); font-style: italic; font-size: 26px; color: var(--accent); }
.step h3 { font-size: 16px; margin: 10px 0 6px; font-weight: 600; }
.step p { font-size: 13.5px; margin: 0; }

/* preguntas frecuentes */
.faq { margin-top: 36px; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item summary {
  padding: 16px 0; font-weight: 600; font-size: 15px; cursor: pointer;
  list-style: none; display: flex; justify-content: space-between;
  align-items: center; gap: 16px; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { font-family: var(--serif); font-style: italic; color: var(--accent); font-size: 18px; flex-shrink: 0; }
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item p { margin: 0 0 16px; font-size: 14px; max-width: 64ch; }

/* informe de ejemplo — artefacto acotado real, sí lleva card */
.report { display: grid; grid-template-columns: .85fr 1.15fr; gap: 34px; align-items: center; margin-top: 26px; }
.report-card { background: #fff; color: var(--ink); padding: 24px; border-radius: 14px; border: 1px solid var(--line); }
.report-card .title { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.report-row { display: flex; justify-content: space-between; gap: 20px; padding: 10px 0; border-top: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.report-row:first-child { border-top: none; }
.report-row span { font-size: 13.5px; color: var(--muted); }
.report-row b { font-size: 13.5px; font-weight: 600; }
.report-bullets { margin-top: 20px; }
.report-bullet { color: #D3DEEA; padding: 8px 0; font-size: 14px; display: flex; gap: 10px; }
.report-bullet .m { color: var(--success); font-family: var(--serif); font-style: italic; }

/* precio — un presupuesto real, sí lleva card */
.price-row { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; margin-top: 22px; }
.price-box { text-align: center; padding: 22px 26px; border-radius: 14px; border: 1px solid var(--line); background: #fff; }
.price-box .label { font-size: 12px; color: var(--muted); }
.price-box .price { font-family: var(--serif); font-size: 36px; font-weight: 600; margin: 2px 0; }
.price-box .note { font-size: 11.5px; color: var(--muted); }
.price-box .includes { text-align: left; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); display: grid; gap: 8px; }
.price-box .includes div { font-size: 13px; color: var(--ink); }
.price-box .includes span { color: var(--accent); font-family: var(--serif); font-style: italic; margin-right: 6px; }
.price-box .btn { margin-top: 16px; width: 100%; }

/* formulario — una entrada acotada real, sí lleva card */
.form-copy p { color: var(--muted-dark); font-size: 16.5px; }
.form-copy .mini { margin-top: 24px; display: grid; gap: 12px; font-size: 13.5px; }
.form-copy .mini div { padding-top: 12px; border-top: 1px solid var(--line-dark); color: #CBD8E6; }
.form { background: #fff; color: var(--ink); padding: 24px; border-radius: 14px; border: 1px solid var(--line); margin-top: 26px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid label { display: grid; gap: 6px; }
.form-grid label.full { grid-column: 1 / -1; }
.form-grid span { font-size: 13px; color: var(--muted); }

input, select, textarea {
  width: 100%; padding: 12px 13px; border-radius: 8px;
  border: 1px solid var(--line); font: inherit;
  background: #fff; color: var(--ink); outline: none;
}
textarea { min-height: 108px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(168, 97, 26, .14);
}

.submit { width: 100%; border: none; cursor: pointer; margin-top: 14px; }
.submit[disabled] { opacity: .6; cursor: not-allowed; }
.privacy { font-size: 11.5px; color: var(--muted); margin-top: 10px; }

.success, .error-msg {
  display: none; margin-top: 12px; padding: 12px; border-radius: 8px; font-size: 13px;
}
.success { background: rgba(47, 158, 110, .1); color: var(--success); border: 1px solid rgba(47, 158, 110, .25); }
.error-msg { background: rgba(177, 74, 63, .1); color: var(--danger); border: 1px solid rgba(177, 74, 63, .25); }

.consent { display: flex; gap: 10px; align-items: flex-start; margin-top: 16px; font-size: 13px; color: var(--muted); }
.consent input { width: auto; margin-top: 3px; }
.consent a { color: var(--accent); text-decoration: underline; }

/* honeypot: invisible para personas, los bots suelen rellenarlo igualmente */
.hp-field { position: absolute; left: -9999px; top: -9999px; }

/* ==========================================================================
   Pie de página
   ========================================================================== */

footer { padding: 26px 0 40px; font-size: 13px; color: var(--muted); }
.footer-row { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero-grid, .product, .report, .price-row { grid-template-columns: 1fr; }
  .doc { grid-template-columns: 1fr; }
  .rail { display: flex; align-items: baseline; gap: 10px; margin-bottom: 6px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .dim-row { grid-template-columns: 1fr; }
  .price-box { text-align: left; }
}

@media (max-width: 600px) {
  .hero { padding-top: 60px; }
  .steps, .form-grid { grid-template-columns: 1fr; }
  .form-grid label.full { grid-column: auto; }
}