/* =============================================================
   TALLER BITÁCORA — styles.css
   Archetype: Brutalist Grid (adaptado) — grafito industrial +
   amarillo de señalización + óxido-cobre. Tipografía condensada
   + mono para lecturas de datos (precios, km, horarios).
   Sitio de demostración — ver aviso en el pie de página.
   ============================================================= */

/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #232323;
  --bg-deep: #161513;
  --surface: #2B2824;
  --surface-2: #343028;
  --ink: #F3EEE3;
  --ink-soft: #D8D0C1;
  --ink-mute: #A79C8A;
  --accent: #F2C14E;
  --accent-ink: #1A1707;
  --accent-soft: rgba(242, 193, 78, 0.14);
  --copper: #B5651D;
  --copper-light: #D9883D;
  --line: rgba(243, 238, 227, 0.14);
  --line-strong: rgba(243, 238, 227, 0.32);

  --display: "Oswald", "Arial Narrow", sans-serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --nav-h: 68px;
  --gutter: 1.25rem;
  --maxw: 1240px;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  overflow-x: clip;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.04; letter-spacing: -0.01em; font-family: var(--display); font-weight: 600; }
ul { list-style: none; padding: 0; }
table { border-collapse: collapse; width: 100%; }
::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
body.nav-lock { overflow: hidden; }

/* =============================================================
   3. Utilities
   ============================================================= */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 9999;
  padding: .7rem 1.1rem; background: var(--accent); color: var(--accent-ink);
  font-weight: 600; transition: top .2s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

.eyebrow {
  display: inline-flex; align-items: center; gap: .5em;
  font-family: var(--mono); font-size: .8rem; letter-spacing: .06em;
  text-transform: uppercase; color: var(--accent);
}
.eyebrow::before { content: ""; width: .5em; height: .5em; background: var(--accent); display: inline-block; }

.section-num {
  font-family: var(--display); font-weight: 600; color: var(--copper);
  font-size: clamp(2.6rem, 6vw, 4rem); line-height: 1; opacity: .9;
}

.hairline-top { border-top: 1px solid var(--line); }
.hairline-bottom { border-bottom: 1px solid var(--line); }

/* =============================================================
   4. Typography
   ============================================================= */
.h-display {
  font-size: clamp(2.4rem, 6.4vw, 5.4rem);
  line-height: .98;
}
.h-section {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
}
.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 62ch;
}
.mono { font-family: var(--mono); }
.text-mute { color: var(--ink-mute); }

/* =============================================================
   5. Components
   ============================================================= */

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  padding: .85em 1.4em;
  font-family: var(--sans); font-weight: 600; font-size: .95rem;
  letter-spacing: .01em;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  transition: background-color .15s var(--ease-out), color .15s var(--ease-out), border-color .15s var(--ease-out);
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent); color: var(--accent-ink); border-color: var(--accent);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--ink); color: var(--bg); border-color: var(--ink);
}
.btn-ghost {
  background: transparent; color: var(--ink);
}
.btn-ghost:hover, .btn-ghost:focus-visible {
  background: var(--ink); color: var(--bg); border-color: var(--ink);
}
.btn-whatsapp {
  background: var(--copper); color: var(--ink); border-color: var(--copper);
}
.btn-whatsapp:hover, .btn-whatsapp:focus-visible {
  background: var(--copper-light); border-color: var(--copper-light); color: var(--accent-ink);
}
.btn[disabled] { opacity: .4; cursor: not-allowed; }
.btn[disabled]:hover { background: inherit; }

.btn-row { display: flex; flex-wrap: wrap; gap: .9rem; }

/* --- Forms --- */
.field {
  display: flex; flex-direction: column; gap: .4rem;
}
.field label {
  font-size: .82rem; font-weight: 600; letter-spacing: .03em; text-transform: uppercase;
  color: var(--ink-soft);
}
.field input, .field select {
  font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--bg-deep);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  padding: .75em .85em;
  width: 100%;
}
.field input::placeholder { color: var(--ink-mute); }
.field input:focus-visible, .field select:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 1px; border-color: var(--accent);
}
.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-mute) 50%), linear-gradient(135deg, var(--ink-mute) 50%, transparent 50%);
  background-position: calc(100% - 20px) center, calc(100% - 14px) center;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.form-grid {
  display: grid; grid-template-columns: 1fr; gap: 1rem;
}
.form-actions { margin-top: .4rem; }

.chip-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .5rem; }
.chip {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .02em;
  padding: .4em .7em; border: 1px dashed var(--line-strong); color: var(--ink-mute);
  border-radius: 0;
  transition: background-color .15s var(--ease-out), color .15s var(--ease-out), border-color .15s var(--ease-out);
}
.chip:hover, .chip:focus-visible { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); border-style: solid; }
.field-hint { font-size: .82rem; color: var(--ink-mute); }

/* --- Tool panels --- */
.tool-panel {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: clamp(1.4rem, 3vw, 2.4rem);
}
.tool-panel + .tool-panel { margin-top: 1.5rem; }
.tool-panel__head {
  display: flex; align-items: baseline; gap: 1rem; margin-bottom: 1.4rem;
  flex-wrap: wrap;
}
.tool-panel__head h3 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); }

.tool-result {
  margin-top: 1.4rem; padding: 1.2rem 1.3rem;
  background: var(--bg-deep); border-left: 3px solid var(--accent);
}
.tool-result:empty { display: none; }
.tool-result[data-state="empty"] { border-left-color: var(--copper); }
.tool-result__kicker {
  font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .05em;
  color: var(--accent); margin-bottom: .5rem;
}
.tool-result[data-state="empty"] .tool-result__kicker { color: var(--copper-light); }
.tool-result__title { font-size: 1.25rem; margin-bottom: .55rem; }
.tool-result__causa { color: var(--ink-soft); margin-bottom: .6rem; }
.tool-result__rango { font-family: var(--mono); font-size: 1.05rem; margin-bottom: .4rem; }
.tool-result__rango strong { color: var(--accent); }
.tool-result__urgencia { font-size: .92rem; color: var(--ink-mute); margin-bottom: .6rem; }
.tool-result__note { font-size: .85rem; color: var(--copper-light); margin-bottom: .8rem; }
.tool-result .btn { margin-top: .4rem; }

.tool-table { margin-top: .6rem; font-size: .92rem; }
.tool-table th, .tool-table td {
  text-align: left; padding: .55em .7em; border-bottom: 1px solid var(--line);
}
.tool-table th {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .05em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 500;
}
.tool-table td:nth-child(2) { font-family: var(--mono); }

/* --- Slots / agenda --- */
#cot-agenda[hidden] { display: none; }
#cot-agenda { margin-top: 1.4rem; }
#cot-agenda__title { font-size: 1.05rem; margin-bottom: .9rem; }
#cot-slots { display: grid; gap: .9rem; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.slot-day__label {
  font-family: var(--mono); font-size: .78rem; text-transform: capitalize;
  color: var(--ink-mute); margin-bottom: .5rem;
}
.slot-day__times { display: flex; gap: .4rem; flex-wrap: wrap; }
.slot-btn {
  font-family: var(--mono); font-size: .85rem;
  border: 1px solid var(--line-strong); padding: .5em .7em; border-radius: 0;
  color: var(--ink-soft);
  transition: background-color .15s var(--ease-out), color .15s var(--ease-out), border-color .15s var(--ease-out);
}
.slot-btn:hover, .slot-btn:focus-visible { border-color: var(--accent); }
.slot-btn[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
#cot-confirmacion:empty { display: none; }
#cot-confirmacion { margin-top: 1.2rem; padding: 1.2rem 1.3rem; background: var(--accent-soft); border-left: 3px solid var(--copper); }
#cot-confirmacion .tool-result__kicker { color: var(--copper-light); }

/* --- Cards --- */
.card {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 1.6rem;
  transition: border-color .15s var(--ease-out), background-color .15s var(--ease-out);
}
.card:hover, .card:focus-within { border-color: var(--accent); background: var(--surface-2); }
.card__price { font-family: var(--mono); color: var(--accent); margin-top: .8rem; font-size: 1.05rem; }
.card__title { font-size: 1.15rem; margin-bottom: .5rem; }
.card__desc { color: var(--ink-soft); font-size: .95rem; margin-bottom: .3rem; }
.card__meta { font-family: var(--mono); font-size: .76rem; color: var(--ink-mute); text-transform: uppercase; letter-spacing: .04em; }

.pillar { padding-block: 1.6rem; border-top: 1px solid var(--line); }
.pillar:first-child { border-top: none; }
.pillar__num { font-family: var(--mono); color: var(--copper); font-size: 1rem; }
.pillar__title { font-size: 1.3rem; margin-block: .5rem .6rem; }
.pillar__text { color: var(--ink-soft); max-width: 58ch; }

/* =============================================================
   6. Sections
   ============================================================= */

/* --- Header / nav --- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(35, 35, 35, 0.92);
  border-bottom: 1px solid var(--line);
}
@supports (backdrop-filter: blur(10px)) {
  .site-header { backdrop-filter: blur(10px) saturate(140%); background: rgba(35, 35, 35, 0.72); }
}
.nav-bar { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.logo {
  font-family: var(--display); font-weight: 600; font-size: 1.15rem; letter-spacing: .01em;
  display: flex; align-items: baseline; gap: .4em;
  white-space: nowrap;
}
.logo__mark { color: var(--accent); }
.nav-toggle {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 42px; height: 42px; align-items: center;
}
.nav-toggle span.bar {
  width: 22px; height: 2px; background: var(--ink); transition: transform .2s var(--ease-out), opacity .2s var(--ease-out);
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-menu {
  position: fixed; inset: var(--nav-h) 0 0 0;
  background: var(--bg);
  display: flex; flex-direction: column;
  padding: 1.5rem var(--gutter) 2rem;
  gap: .25rem;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .18s var(--ease-out), transform .18s var(--ease-out), visibility .18s;
  overflow-y: auto;
}
.nav-menu.is-open { opacity: 1; transform: translateY(0); visibility: visible; }
.nav-menu a:not(.btn) {
  display: block; padding: .9rem 0; font-size: 1.3rem; font-family: var(--display);
  border-bottom: 1px solid var(--line);
}
.nav-menu a:not(.btn):hover, .nav-menu a:not(.btn):focus-visible { color: var(--accent); }
.nav-menu .btn { margin-top: 1rem; align-self: flex-start; }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex; align-items: flex-end;
  overflow: clip;
}
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-scrim {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(180deg, rgba(22,21,19,.55) 0%, rgba(22,21,19,.42) 32%, rgba(22,21,19,.88) 100%),
    linear-gradient(90deg, rgba(22,21,19,.75) 0%, rgba(22,21,19,.25) 55%);
}
.hero-content {
  position: relative; z-index: 2;
  width: 100%; padding-block: 6.5rem 3.5rem;
}
.hero-title { max-width: 14ch; margin-block: .9rem 1.1rem; }
.hero-title .accent { color: var(--accent); }
.hero-sub { margin-bottom: 1.8rem; }
.hero-pillars {
  display: grid; gap: 1px; background: var(--line);
  border: 1px solid var(--line);
  margin-top: 2.6rem;
}
.hero-pillars__item { background: rgba(22,21,19,.55); padding: 1rem 1.1rem; }
.hero-pillars__item strong {
  display: block; font-family: var(--mono); font-size: .72rem; letter-spacing: .04em;
  text-transform: uppercase; color: var(--accent); margin-bottom: .35rem;
}
.hero-pillars__item span { font-size: .88rem; color: var(--ink-soft); }

/* --- Concepto --- */
.concepto { padding-block: clamp(3.5rem, 8vw, 6.5rem); background: var(--bg); }
.concepto__intro { max-width: 68ch; margin-top: 1.2rem; font-size: clamp(1.05rem, 1.8vw, 1.3rem); color: var(--ink-soft); }
.concepto__pillars { margin-top: 2.6rem; }

/* --- Servicios (contenedor de catálogo + 3 herramientas) --- */
.servicios { padding-block: clamp(3.5rem, 8vw, 6.5rem); background: var(--bg-deep); }
.servicios__head { max-width: 68ch; margin-bottom: 2.4rem; }
.service-grid {
  display: grid; grid-template-columns: 1fr; gap: 1rem;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}
.herramientas__head { margin-bottom: 1.8rem; max-width: 68ch; }

/* --- Galería --- */
.galeria { padding-block: clamp(3.5rem, 8vw, 6.5rem); background: var(--bg); }
.galeria__head { max-width: 68ch; margin-bottom: 2rem; }
.galeria-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px;
  background: var(--line);
  border: 1px solid var(--line);
}
.galeria-grid figure { background: var(--bg); position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.galeria-grid img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.02) contrast(1.02);
  transition: transform .4s var(--ease-out), filter .4s var(--ease-out);
}
.galeria-grid a:hover img, .galeria-grid a:focus-visible img { transform: scale(1.06); filter: saturate(1.15) contrast(1.05); }
.galeria-grid figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: .8rem .9rem .7rem;
  font-size: .82rem; color: var(--ink);
  background: linear-gradient(0deg, rgba(14,13,11,.88), rgba(14,13,11,0));
}

/* --- Contacto --- */
.contacto {
  padding-block: clamp(3.5rem, 9vw, 7rem);
  background: var(--bg-deep);
  position: relative;
}
.contacto__inner { max-width: 760px; }
.contacto .eyebrow { margin-bottom: 1rem; }
.contacto__nota {
  margin-top: 2.2rem; padding-top: 1.6rem; border-top: 1px solid var(--line);
  font-size: .9rem; color: var(--ink-mute); max-width: 60ch;
}

/* --- Footer --- */
.site-footer { background: var(--bg); border-top: 1px solid var(--line); padding-block: 2.6rem 2rem; }
.footer-grid {
  display: grid; gap: 2rem; grid-template-columns: 1fr;
}
.footer-brand { font-family: var(--display); font-size: 1.1rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1rem 1.4rem; }
.footer-nav a:hover, .footer-nav a:focus-visible { color: var(--accent); }
.disclaimer {
  border: 1px solid var(--copper);
  background: rgba(181, 101, 29, 0.1);
  padding: 1rem 1.2rem;
  display: flex; gap: .8rem; align-items: flex-start;
  font-size: .9rem; color: var(--ink-soft);
}
.disclaimer__icon { color: var(--copper-light); flex-shrink: 0; font-family: var(--mono); font-weight: 700; }
.footer-bottom {
  margin-top: 2rem; padding-top: 1.4rem; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: .8rem 1.4rem; justify-content: space-between;
  font-size: .82rem; color: var(--ink-mute);
}
.footer-bottom a:hover, .footer-bottom a:focus-visible { color: var(--accent); }

/* --- Credits page --- */
.page-credits main { padding-block: 3rem; }
.page-credits .container { max-width: 760px; }
.credits-list { margin-top: 1.6rem; display: flex; flex-direction: column; gap: 1rem; }
.credits-list li { border: 1px solid var(--line); padding: 1rem 1.2rem; font-size: .92rem; }
.credits-list a { color: var(--accent); }
.credits-list a:hover, .credits-list a:focus-visible { text-decoration: underline; }
.back-link { display: inline-flex; gap: .4em; margin-bottom: 1.2rem; }
.back-link:hover, .back-link:focus-visible { color: var(--accent); }

/* =============================================================
   7. Effects
   ============================================================= */
html.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s var(--ease-out), transform .55s var(--ease-out);
}
html.js-ready [data-reveal].is-revealed { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html.js-ready [data-reveal] { transition-duration: .01ms; }
}

/* =============================================================
   8. Responsive — mobile-first (540 / 720 / 960 / 1280 / 1600)
   ============================================================= */
@media (min-width: 540px) {
  .hero-pillars { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 720px) {
  :root { --gutter: 2rem; }
  .nav-toggle { display: none; }
  .nav-menu {
    position: static; inset: auto; background: none; flex-direction: row; align-items: center;
    padding: 0; gap: 1.6rem; opacity: 1; visibility: visible; transform: none; overflow: visible;
  }
  .nav-menu a:not(.btn) { padding: 0; font-size: .95rem; font-family: var(--sans); font-weight: 600; border-bottom: 0; }
  .nav-menu .btn { margin-top: 0; padding: .6em 1.1em; font-size: .85rem; }
  .nav-menu-list { display: flex; gap: 1.6rem; align-items: center; }

  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid--diag { grid-template-columns: repeat(2, 1fr); }
  .form-actions { grid-column: 1 / -1; }

  .service-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
}

@media (min-width: 960px) {
  .hero-content { padding-block: 8rem 4.5rem; }
  .hero-title { max-width: 16ch; }
  .concepto-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 3.5rem; align-items: start; }
  .form-grid--cot { grid-template-columns: repeat(3, 1fr); }
  .form-grid--cot .form-actions { grid-column: auto; }
  .service-grid { grid-template-columns: repeat(5, 1fr); }
}

@media (min-width: 1280px) {
  .hero-title { font-size: clamp(3.6rem, 5.6vw, 6.2rem); }
}