/* ============================================================
   ASISTENTES IA — styles.css
   Tokens del design system Datagrowth (DM Sans, navy + lima)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand palette */
  --ink: #263b4a;
  --ink-soft: #1d2e3a;
  --lima: #b5ff82;
  --lav: #bab8d0;
  --bg: #ffffff;
  --surface: #f8fafc;

  /* Opacity */
  --ink-85: rgba(38,59,74,0.85);
  --ink-80: rgba(38,59,74,0.80);
  --ink-70: rgba(38,59,74,0.70);
  --ink-65: rgba(38,59,74,0.65);
  --ink-50: rgba(38,59,74,0.50);
  --ink-40: rgba(38,59,74,0.40);
  --ink-15: rgba(38,59,74,0.15);
  --ink-12: rgba(38,59,74,0.12);
  --ink-05: rgba(38,59,74,0.05);
  --bg-85: rgba(255,255,255,0.85);
  --bg-70: rgba(255,255,255,0.70);
  --bg-40: rgba(255,255,255,0.40);
  --bg-15: rgba(255,255,255,0.15);
  --bg-10: rgba(255,255,255,0.10);

  --line: rgba(38,59,74,0.10);
  --line-strong: rgba(38,59,74,0.20);

  --font: 'DM Sans', ui-sans-serif, system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, monospace;

  --r-md: 12px;
  --r-lg: 16px;
  --r-2xl: 20px;
  --r-3xl: 28px;
  --r-pill: 9999px;

  --ease-out: ease-out;
  --ease-reveal: cubic-bezier(0.16,1,0.3,1);

  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px;
}

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--lima); color: var(--ink); }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

.dg-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;
}

/* ---- LAYOUT ---- */
.dg-container-wide {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 24px;
}
.dg-container-prose {
  max-width: 900px;
  margin-inline: auto;
  padding-inline: 24px;
}
.dg-text-center { text-align: center; }
.dg-landing { display: block; width: 100%; overflow-x: clip; }

/* ---- EYEBROW ---- */
.dg-eyebrow {
  font-size: 11px; font-weight: 400;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-50);
}
.dg-eyebrow--dark { color: var(--bg-40); }

/* ---- REVEAL LINES ---- */
.dg-reveal-line { display: block; overflow: hidden;
  padding-bottom: 0.12em; margin-bottom: -0.12em; }
.dg-reveal-inner {
  display: block;
  transform: translateY(110%);
  transition: transform 1.1s var(--ease-reveal);
  will-change: transform;
}
.dg-reveal-line.is-visible .dg-reveal-inner { transform: translateY(0); }

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ---- BUTTONS ---- */
.dg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-radius: var(--r-pill);
  padding: 6px 8px 6px 24px;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  height: 56px;
  text-decoration: none;
  transition: background 300ms var(--ease-out), border-color 300ms var(--ease-out), transform 300ms var(--ease-out);
  cursor: pointer;
  border: none;
}
.dg-btn:active { transform: scale(0.98); }
.dg-btn__label { padding-left: 4px; }
.dg-btn__circle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--r-pill);
  flex-shrink: 0;
}
.dg-btn__circle svg { width: 14px; height: 14px; transition: transform 300ms var(--ease-out); }
.dg-btn:hover .dg-btn__circle svg { transform: translate(2px, -2px); }
.dg-btn:focus-visible { outline: 2px solid var(--lima); outline-offset: 3px; }

.dg-btn--primary { background: var(--ink); color: #fff; }
.dg-btn--primary:hover { background: var(--ink-soft); }
.dg-btn--primary .dg-btn__circle { background: var(--lima); color: var(--ink); }
.dg-btn--primary.dg-btn--on-dark { background: #fff; color: var(--ink); }
.dg-btn--primary.dg-btn--on-dark:hover { background: rgba(255,255,255,0.92); }

.dg-btn--ghost {
  background: transparent;
  color: #fff;
  border: 1px solid var(--bg-15);
}
.dg-btn--ghost:hover { border-color: var(--bg-40); background: var(--bg-10); }
.dg-btn--ghost .dg-btn__circle { background: var(--bg-15); color: #fff; }

/* ============================================================
   HERO (light — fondo blanco)
   ============================================================ */
.dg-hero {
  position: relative;
  background: var(--bg);
  color: var(--ink);
  overflow: hidden;
  min-height: auto;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
}
@media (min-width: 768px) {
  .dg-hero { min-height: 100dvh; }
}
.dg-hero--light {
  background: var(--bg);
  color: var(--ink);
}
.dg-hero__inner { position: relative; z-index: 2; }
.dg-hero__h1 {
  font-size: clamp(48px, 9.5vw, 144px);
  font-weight: 500;
  line-height: 0.92;
  letter-spacing: -0.035em;
  margin: 32px 0 40px;
  color: var(--ink);
}
.dg-hero--light .dg-hero__h1 { color: var(--ink); }
.dg-hero__h1 em {
  color: var(--ink-80);
  font-style: italic;
  font-weight: 500;
}
.dg-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: end;
  margin-bottom: 64px;
}
.dg-hero__lead {
  font-size: 20px;
  line-height: 1.55;
  color: var(--ink-70);
  max-width: 60ch;
}
.dg-hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.dg-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.dg-hero__stat { display: flex; flex-direction: column; gap: 6px; }
.dg-hero__stat-num {
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 500;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  line-height: 1;
}
.dg-hero__stat-label {
  font-size: 13px;
  color: var(--ink-65);
  line-height: 1.4;
  max-width: 30ch;
}

/* Ghost button variant for light backgrounds */
/* Border uses --ink-70 (~4.6:1 vs white) to meet WCAG 1.4.11 ≥3:1 for UI components */
.dg-btn--ghost.dg-btn--on-light {
  color: var(--ink);
  border-color: var(--ink-70);
}
.dg-btn--ghost.dg-btn--on-light:hover { border-color: var(--ink); background: var(--ink-05); }
.dg-btn--ghost.dg-btn--on-light .dg-btn__circle { background: var(--ink-05); color: var(--ink); }

@media (min-width: 768px) {
  .dg-hero__grid {
    grid-template-columns: 1.4fr 1fr;
    gap: 64px;
  }
  .dg-hero__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
  }
}

/* ============================================================
   MARQUEE INTEGRACIONES
   ============================================================ */
.dg-marquee {
  padding: 64px 0 48px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.dg-marquee--light {
  background: #F3F5F8;
}
.dg-marquee .dg-eyebrow { margin-bottom: 32px; }
.dg-marquee__wrap {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.dg-marquee__track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: dg-marquee-scroll 50s linear infinite;
}
.dg-marquee:hover .dg-marquee__track,
.dg-marquee:focus-within .dg-marquee__track { animation-play-state: paused; }

.dg-marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-70);
  white-space: nowrap;
}
.dg-marquee__item img {
  filter: brightness(0);
  opacity: 0.7;
}
.dg-marquee__item--text {
  font-weight: 600;
  font-size: 14px;
  color: var(--ink-65);
  letter-spacing: 0.01em;
}
@keyframes dg-marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   TRES MODALIDADES
   ============================================================ */
.dg-modes { padding: 96px 0; background: var(--surface); }
.dg-modes__head { margin-bottom: 56px; }
.dg-modes__h2 {
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-top: 16px;
}
.dg-modes__h2 em { color: var(--ink-80); font-style: italic; }
.dg-modes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-3xl);
  overflow: hidden;
}
.dg-modes__card {
  background: var(--bg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: filter 0.2s ease-out;
}
.dg-modes__card:hover { filter: brightness(0.92); }
.dg-modes__icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-pill);
  background: var(--ink-05);
}
.dg-modes__icon--lima {
  background: var(--lima);
  color: var(--ink);
}
.dg-modes__icon img { filter: brightness(0); opacity: 0.85; width: 28px; height: 28px; }
.dg-modes__h3 {
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.018em;
}
.dg-modes__body { color: var(--ink-70); }

@media (min-width: 768px) {
  .dg-modes__grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   CASO REAL
   ============================================================ */
.dg-caso { padding: 96px 0; background: var(--bg); }
.dg-caso .dg-eyebrow { margin-bottom: 24px; }
.dg-caso__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}
.dg-caso__media {
  border-radius: var(--r-3xl);
  overflow: hidden;
  background: var(--ink-05);
  aspect-ratio: 4/3;
}
.dg-caso__media img { width: 100%; height: 100%; object-fit: cover; }
.dg-caso__h2 {
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.03em;
}
.dg-caso__h2 em { color: var(--ink-80); font-style: italic; }
/* Cliente: mismo tamaño de letra en el cuerpo del caso (lead + párrafo) */
.dg-caso__lead {
  margin-top: 20px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-70);
}
.dg-caso__body-p { color: var(--ink-70); }
/* "Ver caso completo" estilizado como botón (pill ink + círculo lima) */
.dg-caso__link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  align-self: flex-start;
  margin-top: 24px;
  padding: 6px 8px 6px 24px;
  height: 56px;
  border-radius: var(--r-pill);
  background: var(--ink);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: background 300ms var(--ease-out);
}
.dg-caso__link:hover { background: var(--ink-soft); }
.dg-caso__link:active { transform: scale(0.98); }
.dg-caso__link:focus-visible { outline: 2px solid var(--lima); outline-offset: 3px; }
.dg-caso__link-circle {
  width: 40px; height: 40px;
  border-radius: var(--r-pill);
  background: var(--lima);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.dg-caso__link-circle svg { width: 14px; height: 14px; transition: transform 300ms; }
.dg-caso__link:hover .dg-caso__link-circle svg { transform: translate(2px, -2px); }

@media (min-width: 900px) {
  .dg-caso__grid {
    grid-template-columns: 0.45fr 0.55fr;
    gap: 48px;
    align-items: center;
  }
}
@media (min-width: 1100px) {
  .dg-caso__grid {
    grid-template-columns: 0.45fr 0.55fr;
    gap: 64px;
  }
}

/* Casos extra — grid de dos tarjetas */
.dg-caso__extra-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-3xl);
  overflow: hidden;
  margin-top: 48px;
}
.dg-caso__extra-card {
  background: var(--surface);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.dg-caso__extra-sector {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-50);
}
.dg-caso__extra-h3 {
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.018em;
}
.dg-caso__extra-body { color: var(--ink-70); font-size: 15px; line-height: 1.65; }
/* Botones de las dos tarjetas alineados abajo aunque el texto difiera */
.dg-caso__extra-card .dg-caso__link { margin-top: auto; }

@media (min-width: 768px) {
  .dg-caso__extra-grid { grid-template-columns: 1fr 1fr; }
  .dg-caso__extra-card { padding: 48px 40px; }
}

/* ============================================================
   STACK GRID
   ============================================================ */
/* Salto de color: la sección Stack rompe el blanco con --surface */
.dg-stack { padding: 96px 0; background: var(--surface); }
.dg-stack__head {
  text-align: center;
  margin-bottom: 56px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}
.dg-stack__h2 {
  font-size: clamp(36px, 6vw, 80px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
}
.dg-stack__sub { color: var(--ink-70); max-width: 60ch; }
.dg-stack__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-3xl);
  overflow: hidden;
}
.dg-stack__col {
  background: var(--bg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.dg-stack__col-eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-50);
}
.dg-stack__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.dg-stack__list li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-70);
}
.dg-stack__list img { filter: brightness(0); opacity: 0.75; }
.dg-stack__pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  font-size: 13px;
  color: var(--ink-70);
}

@media (min-width: 700px) {
  .dg-stack__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .dg-stack__grid { grid-template-columns: repeat(4, 1fr); }
}

/* ============================================================
   FAQ
   ============================================================ */
.dg-faq { padding: 40px 0 80px; background: var(--surface); }
.dg-faq .dg-eyebrow { margin-bottom: 16px; }
/* FAQ CENTRADA como la home: h2 centrado + lista constreñida y centrada. */
.dg-faq__h2 {
  font-size: clamp(40px, 7vw, 96px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-align: center;
  margin-bottom: 56px;
}
.dg-faq__h2 em { color: var(--ink-80); font-style: italic; }
.dg-faq__list {
  display: flex;
  flex-direction: column;
  max-width: 760px;
  margin-inline: auto;
}
.dg-faq__item {
  border-bottom: 1px solid var(--line);
}
.dg-faq__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font);
}
.dg-faq__btn:focus-visible {
  outline: 2px solid var(--lima);
  outline-offset: 2px;
  border-radius: 4px;
}
.dg-faq__q {
  font-size: clamp(16px, 1.8vw, 20px);
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
}
.dg-faq__icon {
  width: 32px; height: 32px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  flex-shrink: 0;
  transition: transform 300ms var(--ease-out);
}
.dg-faq__icon svg { width: 12px; height: 12px; }
.dg-faq__btn[aria-expanded="true"] .dg-faq__icon {
  transform: rotate(45deg);
}
/* Override UA [hidden]{display:none} para que anime el grid-row al abrir/cerrar */
.dg-faq__answer[hidden] { display: grid; }
.dg-faq__answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms var(--ease-out);
}
.dg-faq__answer.is-open { grid-template-rows: 1fr; }
.dg-faq__answer-inner { overflow: hidden; }
.dg-faq__answer-inner p {
  padding-bottom: 24px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-70);
}

@media (min-width: 768px) {
  .dg-faq { padding: 56px 0 112px; }
}

/* ============================================================
   OTROS SERVICIOS IA
   ============================================================ */
.dg-otros { padding: 96px 0; background: var(--surface); }
.dg-otros .dg-eyebrow { margin-bottom: 16px; }
.dg-otros__h2 {
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 48px;
}
.dg-otros__h2 em { color: var(--ink-80); font-style: italic; }
.dg-otros__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-3xl);
  overflow: hidden;
}
.dg-otros__card {
  background: var(--bg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background 300ms;
}
.dg-otros__card:hover { background: var(--surface); }
.dg-otros__h3 {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.018em;
}
.dg-otros__body { color: var(--ink-65); font-size: 14px; }

@media (min-width: 768px) {
  .dg-otros__grid { grid-template-columns: repeat(4, 1fr); }
}

/* ============================================================
   CTA FINAL (dark · magnetic)
   ============================================================ */
.dg-cta {
  background: var(--ink);
  color: #fff;
  padding: 112px 0;
}
.dg-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}
.dg-cta__h2 {
  font-size: clamp(40px, 7vw, 96px);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: #fff;
  max-width: 18ch;
}
.dg-cta__h2 em { color: var(--bg-85); font-style: italic; }
.dg-cta__sub { color: var(--bg-85); max-width: 56ch; }
.dg-cta__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 16px; }
.dg-btn--magnetic { will-change: transform; }

/* ============================================================
   PLACEHOLDER CHROME (dg-header / dg-footer hidratado por components.js)
   ============================================================ */
dg-header, dg-footer { display: block; }
dg-header:empty::before {
  content: "Header · Datagrowth";
  display: block;
  padding: 16px 24px;
  background: var(--ink);
  color: var(--bg-70);
  font-size: 13px;
  letter-spacing: 0.04em;
}
dg-footer:empty::before {
  content: "Footer · Datagrowth · info@datagrowth.es";
  display: block;
  padding: 32px 24px;
  background: var(--ink);
  color: var(--bg-70);
  font-size: 13px;
  text-align: center;
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .dg-reveal-inner { transform: translateY(0) !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .dg-marquee__track { animation: none !important; }
}

/* ============================================================
   FOCUS VISIBLE BASE
   ============================================================ */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--lima);
  outline-offset: 3px;
}