/* Landing de "Control total del gasto en combustible" (Módulo 5).
   Aspecto tomado de docs/mockups/aspecto-visual.html. Sin dependencias. */

/* ===== Tokens: claro (base) ===== */
:root {
  --ground: #e9edf5;
  --surface: #ffffff;
  --surface-2: #f3f5fb;
  --ink: #12183d;
  --ink-2: #565d80;
  --ink-3: #8b90ab;
  --line: #dde1ee;
  --line-2: #ccd2e4;
  --accent: #f45b3a;
  --accent-2: #ff8a5c;
  --accent-ink: #ffffff;
  --ok: #1f9d6b;
  --ok-bg: #e4f3ec;
  --warn: #c98a04;
  --warn-bg: #f8efd9;
  --crit: #c0392b;
  --crit-bg: #f7e4e1;
  --shadow: 0 1px 2px rgba(18, 24, 61, 0.06), 0 8px 24px rgba(18, 24, 61, 0.07);
  --shadow-lg: 0 2px 6px rgba(18, 24, 61, 0.08), 0 24px 60px rgba(18, 24, 61, 0.12);
  --radius: 8px;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0c1030;
    --surface: #151a3d;
    --surface-2: #1c2249;
    --ink: #eef0fb;
    --ink-2: #a7adcf;
    --ink-3: #7b81a6;
    --line: #2a3160;
    --line-2: #343c6f;
    --accent: #ff6d4d;
    --accent-2: #ff9a70;
    --accent-ink: #1a0f0b;
    --ok: #3fbe8a;
    --ok-bg: #123227;
    --warn: #e0a72a;
    --warn-bg: #33290f;
    --crit: #e06a5c;
    --crit-bg: #331a16;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 2px 6px rgba(0, 0, 0, 0.45), 0 24px 60px rgba(0, 0, 0, 0.45);
  }
}

:root[data-theme="dark"] {
  --ground: #0c1030;
  --surface: #151a3d;
  --surface-2: #1c2249;
  --ink: #eef0fb;
  --ink-2: #a7adcf;
  --ink-3: #7b81a6;
  --line: #2a3160;
  --line-2: #343c6f;
  --accent: #ff6d4d;
  --accent-2: #ff9a70;
  --accent-ink: #1a0f0b;
  --ok: #3fbe8a;
  --ok-bg: #123227;
  --warn: #e0a72a;
  --warn-bg: #33290f;
  --crit: #e06a5c;
  --crit-bg: #331a16;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 2px 6px rgba(0, 0, 0, 0.45), 0 24px 60px rgba(0, 0, 0, 0.45);
}

/* ===== Reset y base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  text-wrap: balance;
  font-weight: 600;
  line-height: 1.2;
}

p {
  margin: 0;
}

a {
  color: inherit;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation: none !important;
    transition: none !important;
  }
}

.contenedor {
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: 24px;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

/* ===== Botones ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  padding: 12px 20px;
  min-height: 44px;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid transparent;
  transition: filter 0.15s ease;
}
.btn:hover {
  filter: brightness(1.05);
}
.btn.fantasma {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
}
.btn.fantasma:hover {
  border-color: var(--accent);
  filter: none;
}
.btn-big {
  display: block;
  width: 100%;
  font: inherit;
  font-weight: 700;
  font-size: 15px;
  text-align: center;
  cursor: pointer;
  padding: 13px 20px;
  min-height: 46px;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid transparent;
  transition: filter 0.15s ease;
}
.btn-big:hover {
  filter: brightness(1.05);
}

/* ===== Barra superior (navy, wordmark CREA·TU·IDEA) ===== */
.barra {
  position: sticky;
  top: 0;
  z-index: 30;
  background: #12183d;
  background: color-mix(in srgb, #12183d 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.barra .contenedor {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-block: 11px;
}
.marca {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #fff;
}
.marca .mark {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0 20px 20px;
  border-color: transparent transparent var(--accent) transparent;
  flex: none;
}
.marca .wordmark {
  font-weight: 800;
  letter-spacing: 0.13em;
  font-size: 15px;
}
.marca .wordmark i {
  color: var(--accent);
  font-style: normal;
  margin: 0 0.18em;
}
.marca .marca-prod {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #c9cee6;
  border-left: 1px solid rgba(255, 255, 255, 0.28);
  padding-left: 10px;
}
@media (max-width: 520px) {
  .marca .marca-prod {
    display: none;
  }
}
.barra .sp {
  flex: 1;
}
.barra .nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
/* En escritorio el nav siempre se ve, aunque lleve el atributo hidden
   (que solo aplica en móvil, donde el botón lo controla). */
.barra .nav[hidden] {
  display: flex;
}
.barra .nav a {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: #c9cee6;
  text-decoration: none;
}
.barra .nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.barra .menu-btn {
  display: none;
  font: inherit;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
  color: #fff;
}

@media (max-width: 860px) {
  .barra .nav {
    position: absolute;
    inset: 100% 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #12183d;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 8px 24px 16px;
    box-shadow: var(--shadow);
  }
  .barra .nav[hidden] {
    display: none;
  }
  .barra .nav a {
    padding: 12px 8px;
    border-bottom: 1px solid var(--line);
  }
  .barra .menu-btn {
    display: inline-block;
  }
  .barra .nav .btn {
    margin-top: 10px;
    justify-content: center;
  }
}

/* ===== Pie ===== */
.pie {
  border-top: 1px solid var(--line);
  background: var(--surface);
  margin-top: 72px;
}
.pie .contenedor {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  align-items: center;
  padding-block: 28px;
  font-size: 13.5px;
  color: var(--ink-3);
}
.pie a {
  color: var(--ink-2);
  text-decoration: none;
}
.pie a:hover {
  color: var(--accent);
}
.pie .sp {
  flex: 1;
}

/* ===== Secciones ===== */
main section {
  scroll-margin-top: 76px; /* la barra sticky no tapa el encabezado al saltar */
}
.seccion {
  padding-block: 56px;
}
.seccion > .contenedor > h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 10px;
}
.seccion > .contenedor > .bajada {
  color: var(--ink-2);
  font-size: 16px;
  max-width: 60ch;
  margin-bottom: 28px;
}

/* ===== Hero ===== */
.hero {
  padding-block: clamp(40px, 7vw, 88px);
  background: linear-gradient(180deg, var(--surface-2), var(--ground));
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  align-items: center;
}
.kicker {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
  margin-bottom: 14px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5vw, 50px);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.hero-bajada {
  color: var(--ink-2);
  font-size: 17px;
  margin-top: 18px;
  max-width: 54ch;
}
.hero-acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.detalle {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-3);
}

.tarjeta-demo {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 20px;
}
.demo-cap {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
  margin-bottom: 14px;
}
.demo-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}
.demo-kpi {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.demo-kpi .k-label {
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
}
.demo-kpi .k-val {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
}

/* Medidor de estanque (elemento distintivo) */
.medidor .track {
  height: 14px;
  border-radius: 100px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  overflow: hidden;
}
.medidor .fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 100px;
}
.medidor .ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 10px;
  color: var(--ink-3);
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
@media (max-width: 420px) {
  .demo-kpis {
    grid-template-columns: 1fr;
  }
}

/* ===== Secciones con tarjetas ===== */
.seccion-alt {
  background: var(--surface);
  border-block: 1px solid var(--line);
}
.tarjetas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}
.tarjeta {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.seccion-alt .tarjeta {
  background: var(--surface-2);
}
.tarjeta h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.tarjeta p {
  color: var(--ink-2);
  font-size: 14.5px;
}

/* ===== Pasos numerados (secuencia real) ===== */
.pasos {
  list-style: none;
  counter-reset: paso;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.pasos li {
  counter-increment: paso;
  position: relative;
  padding-left: 60px;
}
.pasos li::before {
  content: counter(paso);
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
}
.pasos h3 {
  font-size: 18px;
  margin-bottom: 6px;
  padding-top: 6px;
}
.pasos p {
  color: var(--ink-2);
  font-size: 14.5px;
  max-width: 62ch;
}
@media (min-width: 700px) {
  .pasos {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== Capturas (SVG esquemático propio) ===== */
.capturas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.capturas figure {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}
.seccion-alt .capturas figure {
  background: var(--surface-2);
}
.capturas figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--ink-3);
  font-weight: 500;
}
.cap-svg {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.cap-svg .s2 { fill: var(--surface-2); }
.cap-svg .sf { fill: var(--surface); }
.cap-svg .ink { fill: var(--ink); }
.cap-svg .line { fill: var(--line-2); }
.cap-svg .ink-soft { fill: var(--ink-3); }
.cap-svg .accent { fill: var(--accent); }
.cap-svg .dot-accent { fill: var(--accent); }
.cap-svg .pin-ok { fill: var(--ok); }
.cap-svg .pin-warn { fill: var(--warn); }
.cap-svg .pin-lost { fill: var(--ink-3); }
.cap-svg .ok-bar { fill: var(--ok-bg); }
.cap-svg .on-ink { fill: #ffffff; }
.cap-svg .on-ink-dim { fill: #8b91ba; }
.cap-svg .street {
  fill: none;
  stroke: var(--line-2);
  stroke-width: 4;
  stroke-linecap: round;
}
.cap-svg .spark {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ===== Prueba gratis + formulario ===== */
.prueba-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
#contacto {
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 22px;
}
.campo {
  margin-bottom: 14px;
}
.campo label {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
  margin-bottom: 6px;
}
.campo input,
.campo textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 6px;
  padding: 10px 12px;
}
.campo textarea {
  resize: vertical;
  min-height: 88px;
}
.campo input:focus-visible,
.campo textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.fila-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
#form-estado {
  margin-top: 12px;
  font-size: 13.5px;
  min-height: 1.2em;
}
#form-estado.ok {
  color: var(--ok);
}
#form-estado.error {
  color: var(--crit);
}
#contacto button[disabled] {
  opacity: 0.6;
  cursor: progress;
}

@media (max-width: 820px) {
  .prueba-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}
@media (max-width: 460px) {
  .fila-2 {
    grid-template-columns: 1fr;
  }
}

/* ===== Planes (Módulo 6) ===== */
.planes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.plan {
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  padding: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.plan h3 {
  font-family: var(--font-display);
  font-size: 20px;
}
.plan-precio {
  font-size: 15px;
  color: var(--ink-2);
}
.plan-precio strong {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.plan-limite {
  font-size: 13px;
  color: var(--ink-3);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.lista-simple {
  margin: 4px 0 0;
  padding-left: 20px;
  color: var(--ink-2);
  font-size: 14.5px;
  display: grid;
  gap: 4px;
}
.plan .btn {
  margin-top: auto;
  justify-content: center;
}
.enlace {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}
.enlace:hover {
  text-decoration: underline;
}

/* ===== Página de registro ===== */
.registro-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
}
.registro-grid h1 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 38px);
  margin-bottom: 12px;
}
#registro {
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 22px;
}
.ayuda {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 6px;
}
#registro-estado {
  margin-top: 12px;
  font-size: 13.5px;
  min-height: 1.2em;
}
#registro-estado.ok {
  color: var(--ok);
}
#registro-estado.error {
  color: var(--crit);
}
#registro button[disabled] {
  opacity: 0.6;
  cursor: progress;
}

/* ===== Página de retorno ===== */
.bloque-centrado {
  max-width: 640px;
}
.bloque-centrado .hero-acciones {
  margin-top: 22px;
}

@media (max-width: 820px) {
  .registro-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ===== Nota bajo cada descarga ===== */
.descarga-nota {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--ink-2);
  max-width: 70ch;
}
.seccion-alt .descarga-nota {
  background: var(--surface-2);
}

/* ===== Documentos (manual, política de privacidad) ===== */
.doc {
  max-width: 74ch;
}
.doc h1 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 34px);
  margin-bottom: 6px;
}
.doc h2 {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 32px 0 8px;
}
.doc p,
.doc li {
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 1.65;
}
.doc ul,
.doc ol {
  padding-left: 22px;
  display: grid;
  gap: 6px;
  margin: 8px 0;
}
.doc b {
  color: var(--ink);
}
.doc-fecha {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-3);
  margin-bottom: 8px;
}
.doc-marca {
  margin-bottom: 18px;
  color: var(--ink);
}
.doc-marca .wordmark {
  font-weight: 800;
  letter-spacing: 0.13em;
  font-size: 14px;
}
.doc-marca .wordmark i {
  color: var(--accent);
  font-style: normal;
  margin: 0 0.18em;
}
.doc-volver {
  margin-top: 32px;
}
.doc-pie {
  margin-top: 32px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13.5px !important;
}

/* ===== Impresión (manual → PDF) ===== */
.no-print {
  /* visible en pantalla */
}
@media print {
  .no-print {
    display: none !important;
  }
  body {
    background: #fff;
    color: #111;
  }
  .seccion {
    padding-block: 0;
  }
  .doc {
    max-width: none;
  }
  .doc p,
  .doc li {
    color: #222;
  }
  .doc h2 {
    break-after: avoid;
  }
  a[href]::after {
    content: '';
  }
}