/* =========================================================
   AltaDev — estilos compartidos (index, servicios, nosotros)
   Móvil: < 760px · Tablet: < 1024px
   ========================================================= */

:root {
  --bg: #16181D;
  --ink: #FFFFFF;
  --lime: #D5FF3F;
  --blue: #4255FF;
  --line: #2A2D35;
  --edge: #3A3E48;
  --muted: #8A8E99;
  --soft: #C4C7CE;
  --rule-light: #D5D8DF;

  --display: 'Space Grotesk', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --gutter: clamp(20px, 4.5vw, 64px);
  --sec-y: clamp(72px, 9vw, 128px);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--lime); text-decoration: none; }
a:hover { color: var(--ink); }
input, textarea, button { font-family: inherit; }
input::placeholder, textarea::placeholder { color: var(--muted); }

.page { background: var(--bg); color: var(--ink); min-height: 100vh; overflow-x: clip; }

/* ---------- Layout ---------- */
.container { max-width: 1440px; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.section { padding-top: var(--sec-y); padding-bottom: var(--sec-y); }
.light { background: #FFFFFF; color: var(--bg); }
.anchor { scroll-margin-top: 96px; }
.stack { display: flex; flex-direction: column; gap: 20px; }
.stack--24 { gap: 24px; }
.stack--32 { gap: 32px; }
.narrow { max-width: 420px; }
.measure { max-width: 720px; }

/* Columna corta + columna ancha; en tablet se apilan */
.split { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 5vw, 72px); }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: clamp(40px, 6vw, 88px); }

/* ---------- Tipografía ---------- */
.eyebrow { font-family: var(--mono); font-size: 13px; letter-spacing: .1em; }
.t-lime { color: var(--lime); }
.t-blue { color: var(--blue); }
.t-muted { color: var(--muted); }

.h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(48px, 8vw, 120px);
  line-height: .95;
  font-weight: 700;
  letter-spacing: -.045em;
  text-wrap: balance;
}
.h1--home { font-size: clamp(52px, 10vw, 148px); line-height: .92; }
.hl { color: var(--lime); }

.h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(34px, 3.6vw, 48px);
  line-height: 1.05;
  letter-spacing: -.03em;
  text-wrap: balance;
}
.h2--svc { font-size: clamp(34px, 3.6vw, 52px); }
.h2--lg { font-size: clamp(38px, 4.4vw, 64px); line-height: 1; letter-spacing: -.035em; }
.h2--xl { font-size: clamp(44px, 5.6vw, 80px); line-height: .95; letter-spacing: -.04em; }
.h2--cta { font-size: clamp(38px, 5vw, 72px); line-height: .95; letter-spacing: -.04em; max-width: 760px; }

.lead { margin: 0; font-size: clamp(17px, 1.4vw, 20px); line-height: 1.6; color: var(--soft); max-width: 640px; }
.lead--narrow { max-width: 460px; }
.text { margin: 0; font-size: 17px; line-height: 1.6; color: var(--soft); }
.prose { margin: 0; font-size: clamp(17px, 1.4vw, 19px); line-height: 1.7; color: var(--soft); max-width: 720px; }
.light .prose { color: var(--edge); text-wrap: pretty; max-width: none; }

/* Enlace subrayado en azul */
.link-u { align-self: flex-start; color: var(--ink); font-size: 17px; border-bottom: 1px solid var(--blue); padding-bottom: 4px; }
.link-u:hover { color: var(--lime); border-color: var(--lime); }
.link-u--big { font-size: 20px; overflow-wrap: anywhere; }
.light .link-u { color: var(--bg); }
.light .link-u:hover { color: var(--blue); border-color: var(--blue); }

/* ---------- Botones ---------- */
.btn-hero {
  padding: 20px 36px;
  border-radius: 16px;
  background: var(--blue);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 18px;
  flex: none;
  white-space: nowrap;
  transition: all .3s;
}
.btn-hero:hover { background: var(--lime); color: var(--bg); transform: translateY(-3px); }

.btn-dark {
  padding: 20px 36px;
  border-radius: 16px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--display);
  font-weight: 600;
  font-size: 18px;
  white-space: nowrap;
  transition: all .3s;
}
.btn-dark:hover { background: var(--blue); color: var(--ink); transform: translateY(-3px); }

.btn-pill {
  align-self: flex-start;
  padding: 18px 32px;
  border: none;
  border-radius: 999px;
  background: var(--lime);
  color: var(--bg);
  font-weight: 600;
  font-size: 17px;
  cursor: pointer;
  transition: all .2s;
}
.btn-pill:hover { background: var(--blue); color: var(--ink); }
.btn-pill:disabled { cursor: wait; opacity: .7; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(22, 24, 29, .92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px var(--gutter);
  border-bottom: 1px solid var(--line);
}
.logo { display: block; }
.logo img { height: 28px; display: block; }

.nav-desktop { display: flex; gap: 4px; font-size: 15px; }
.nav-desktop a { color: var(--soft); padding: 10px 18px; border-radius: 999px; transition: all .2s; }
.nav-desktop a[aria-current="page"] { color: var(--ink); }
.nav-desktop a:hover { color: var(--bg); background: #FFFFFF; }
.nav-desktop a.nav-cta { color: var(--bg); background: var(--lime); font-weight: 600; }
.nav-desktop a.nav-cta:hover { background: #FFFFFF; color: var(--bg); }

.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--lime);
  color: var(--bg);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.menu-btn span { width: 18px; height: 2px; background: var(--bg); transition: transform .25s; }
.site-header.is-open .menu-btn span:first-child { transform: translateY(3.5px) rotate(45deg); }
.site-header.is-open .menu-btn span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-basis: 100%;
  flex-direction: column;
  padding: 16px 0 8px;
  font-family: var(--display);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -.02em;
}
.nav-mobile a { color: var(--ink); padding: 14px 0; border-bottom: 1px solid var(--line); }
.nav-mobile a:hover { color: var(--lime); }
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a[aria-current="page"],
.nav-mobile a.nav-cta { color: var(--lime); }
.nav-mobile a[aria-current="page"]:hover,
.nav-mobile a.nav-cta:hover { color: var(--ink); }

/* ---------- Hero ---------- */
.hero {
  max-width: 1440px;
  margin: 0 auto;
  padding: clamp(56px, 8vw, 112px) var(--gutter) clamp(56px, 7vw, 96px);
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 3.5vw, 48px);
}
.hero--home { padding-bottom: 0; gap: clamp(32px, 4vw, 56px); }
.hero-foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: clamp(40px, 5vw, 64px);
}

.crumbs { font-family: var(--mono); font-size: 13px; letter-spacing: .1em; color: var(--muted); display: flex; gap: 16px; flex-wrap: wrap; }
.crumbs--spaced { gap: 16px 24px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--lime); }
.crumbs .sep { color: var(--blue); }
.crumbs .here { color: var(--lime); }

/* ---------- Home: mosaico y cinta ---------- */
.tiles { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); grid-auto-rows: clamp(64px, 11vw, 168px); }
.tile { transition: border-radius .5s, background .5s; }
.tile:hover { border-radius: 0 !important; background: var(--lime) !important; }

@keyframes adMarquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.strip {
  display: none;
  background: var(--lime);
  color: var(--bg);
  padding: 18px 0;
  overflow: hidden;
  font-family: var(--display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -.01em;
}
.strip-track {
  display: flex;
  gap: 20px;
  align-items: center;
  white-space: nowrap;
  width: max-content;
  padding-left: 20px;
  animation: adMarquee 18s linear infinite;
}
.strip-track img { height: 22px; width: auto; flex: none; display: block; }

/* ---------- Home: acordeón de servicios ---------- */
.svc-list { display: flex; flex-direction: column; border-top: 1px solid var(--line); min-width: 0; }
.svc-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1.1fr) minmax(0, 1fr) 32px;
  gap: 8px 24px;
  align-items: center;
  padding: 32px 20px;
  border: none;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: inherit;
  text-align: left;
  width: 100%;
  cursor: pointer;
  transition: all .3s;
}
.svc-row:hover { background: var(--lime); color: var(--bg); padding-left: 36px; }
.svc-row-n { font-family: var(--mono); font-size: 14px; opacity: .6; }
.svc-row-t { font-family: var(--display); font-size: clamp(22px, 2.2vw, 30px); font-weight: 600; letter-spacing: -.02em; }
.svc-row-d { font-size: 15px; line-height: 1.5; opacity: .75; }
.svc-row-a { font-size: 24px; grid-column: 4; grid-row: 1; transition: transform .3s; }
.svc-row[aria-expanded="true"] .svc-row-a { transform: rotate(90deg); }

.svc-detail { display: flex; flex-direction: column; gap: 20px; padding: 8px 20px 40px 100px; border-bottom: 1px solid var(--line); }
.svc-detail p { margin: 0; font-size: 17px; line-height: 1.6; color: var(--soft); max-width: 620px; }
.svc-detail ul { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; color: var(--soft); font-size: 15px; line-height: 1.5; }
.svc-detail-links { display: flex; flex-wrap: wrap; gap: 12px 28px; }
.svc-detail-links a { font-weight: 600; }
.svc-detail-links a:first-child { color: var(--ink); }
.svc-detail-links a:first-child:hover { color: var(--lime); }

/* ---------- Bloques reutilizables ---------- */
.pills { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { border: 1.5px solid var(--bg); border-radius: 999px; padding: 8px 16px; font-size: 15px; font-weight: 500; }

.tag-link { border: 1.5px solid var(--edge); border-radius: 999px; padding: 10px 18px; font-size: 15px; font-weight: 500; color: var(--ink); transition: all .2s; }
.tag-link:hover { border-color: var(--lime); color: var(--lime); }

/* Misión / visión (home) */
.mv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: clamp(32px, 4vw, 56px); padding-bottom: var(--sec-y); }
.mv { display: flex; flex-direction: column; gap: 16px; border-top: 1.5px solid var(--bg); padding-top: 24px; }
.mv p { margin: 0; font-family: var(--display); font-size: clamp(22px, 2.2vw, 28px); line-height: 1.2; letter-spacing: -.02em; font-weight: 600; }

/* Pasos en tarjetas (home y servicios) */
.steps-block { padding-bottom: var(--sec-y); }
.steps-block > .eyebrow { display: block; margin-bottom: 32px; }
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: clamp(24px, 3vw, 40px); }
.steps-grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.step { display: flex; flex-direction: column; gap: 12px; border-top: 1px solid var(--rule-light); padding-top: 20px; }
.step-n { font-family: var(--mono); font-size: 14px; color: var(--muted); }
.step-t { font-family: var(--display); font-size: 28px; font-weight: 700; letter-spacing: -.02em; }
.step p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--edge); }
.step--strong { border-top: 1.5px solid var(--bg); }
.step--strong .step-n { color: var(--blue); }
.step--strong .step-t { font-size: 26px; }

/* Franja CTA */
.cta-band { background: var(--lime); color: var(--bg); }
.cta-band .container {
  padding-top: clamp(56px, 7vw, 96px);
  padding-bottom: clamp(56px, 7vw, 96px);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  flex-wrap: wrap;
}

/* ---------- Contacto (home) ---------- */
.contact-form { display: flex; flex-direction: column; gap: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; padding-bottom: 12px; }
.chip {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--edge);
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s;
}
.chip:hover { border-color: var(--lime); }
.chip[aria-pressed="true"] { background: var(--lime); color: var(--bg); border-color: var(--lime); }

.field {
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--edge);
  color: var(--ink);
  padding: 20px 0;
  font-size: 18px;
  outline: none;
  transition: border-color .2s;
}
.field:focus { border-color: var(--lime); }
textarea.field { resize: none; }
.contact-form .btn-pill { margin-top: 24px; }

.sent { border: 1.5px solid var(--lime); padding: 40px; display: flex; flex-direction: column; gap: 12px; justify-content: center; }
.sent-title { font-family: var(--display); font-size: 32px; font-weight: 700; color: var(--lime); }
.sent-text { font-size: 17px; color: var(--soft); }
.sent a { align-self: flex-start; color: var(--lime); font-weight: 600; }
.sent a:hover { color: var(--ink); }
.btn-text {
  margin-top: 12px;
  align-self: flex-start;
  background: transparent;
  color: var(--ink);
  border: none;
  border-bottom: 1px solid var(--ink);
  padding: 4px 0;
  font-size: 15px;
  cursor: pointer;
}
.btn-text:hover { color: var(--lime); border-color: var(--lime); }

/* ---------- Servicios ---------- */
.svc { border-top: 1px solid var(--line); }
.svc .split { padding-top: clamp(64px, 8vw, 112px); padding-bottom: clamp(64px, 8vw, 112px); }
.svc-aside { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 120px; align-self: start; }
.svc-n { font-family: var(--mono); font-size: 14px; color: var(--lime); }
.ideal { display: flex; flex-direction: column; gap: 8px; border-left: 2px solid var(--blue); padding-left: 16px; max-width: 420px; }
.ideal-label { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: var(--muted); }
.ideal-text { font-size: 15px; line-height: 1.5; color: var(--ink); }
.svc-main { display: flex; flex-direction: column; gap: 40px; min-width: 0; }
.two-lists { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 32px; }
.check-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.check-list li { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; line-height: 1.5; display: flex; gap: 12px; }
.check-list li::before { flex: none; }
.check-list--arrow li::before { content: "→"; color: var(--blue); }
.check-list--check li::before { content: "✓"; color: var(--lime); }

/* Preguntas frecuentes */
.faq { display: flex; flex-direction: column; border-top: 1px solid var(--line); min-width: 0; }
.faq-q {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 32px;
  gap: 24px;
  align-items: center;
  padding: 28px 4px;
  border: none;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: inherit;
  text-align: left;
  width: 100%;
  cursor: pointer;
  transition: color .2s;
}
.faq-q:hover { color: var(--lime); }
.faq-q-t { font-family: var(--display); font-size: clamp(20px, 1.8vw, 24px); font-weight: 600; letter-spacing: -.02em; }
.faq-q-i { font-size: 28px; line-height: 1; text-align: center; transition: transform .3s; }
.faq-q[aria-expanded="true"] .faq-q-i { transform: rotate(45deg); }
.faq-a { margin: 0; padding: 4px 4px 32px; border-bottom: 1px solid var(--line); font-size: 17px; line-height: 1.65; color: var(--soft); max-width: 720px; }

/* ---------- Nosotros ---------- */
.purpose-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: clamp(40px, 6vw, 88px); }
.purpose { display: flex; flex-direction: column; gap: 20px; border-top: 1.5px solid var(--lime); padding-top: 28px; }
.purpose-title { margin: 0; font-family: var(--display); font-size: clamp(28px, 2.8vw, 40px); line-height: 1.1; letter-spacing: -.03em; font-weight: 600; text-wrap: balance; }

.section-block { display: flex; flex-direction: column; gap: clamp(40px, 5vw, 64px); }
.bordered { border-top: 1px solid var(--line); }

.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 16px; }
.value-card { display: flex; flex-direction: column; gap: 14px; border: 1.5px solid var(--line); border-radius: 16px; padding: 28px; transition: border-color .3s; }
.value-card:hover { border-color: var(--lime); }
.value-n { font-family: var(--mono); font-size: 14px; color: var(--blue); }
.value-t { font-family: var(--display); font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.value-card p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--soft); }

.step-rows { display: flex; flex-direction: column; border-top: 1.5px solid var(--bg); }
.step-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 8px 24px;
  align-items: baseline;
  padding: 32px 0;
  border-bottom: 1px solid var(--rule-light);
}
.step-row-n { font-family: var(--mono); font-size: 14px; color: var(--blue); }
.step-row-t { font-family: var(--display); font-size: clamp(24px, 2.4vw, 32px); font-weight: 700; letter-spacing: -.02em; }
.step-row p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--edge); }

.reasons-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 32px 40px; min-width: 0; }
.reason { display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--line); padding-top: 20px; }
.reason-t { font-family: var(--display); font-size: 22px; font-weight: 600; letter-spacing: -.02em; }
.reason-t::before { content: "✓ "; color: var(--lime); }
.reason p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--soft); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); }
.footer-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 40px var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
}
.footer-inner img { height: 24px; display: block; }
.social { display: flex; gap: 28px; flex-wrap: wrap; }
.social a { color: var(--muted); display: flex; align-items: center; gap: 8px; }
.social a:hover { color: var(--lime); }
.social svg { display: block; flex: none; }

/* ---------- Tablet (< 1024px) ---------- */
@media (max-width: 1023.98px) {
  .split { grid-template-columns: minmax(0, 1fr); }
  .svc-aside { position: static; }
}

/* ---------- Móvil (< 760px) ---------- */
@media (max-width: 759.98px) {
  .nav-desktop { display: none; }
  .menu-btn { display: flex; }
  .site-header.is-open .nav-mobile { display: flex; }

  .tiles { display: none; }
  .strip { display: block; }

  .svc-row { grid-template-columns: 40px minmax(0, 1fr) 24px; padding: 24px 4px; }
  .svc-row:hover { padding-left: 16px; }
  .svc-row-d { grid-column: 2 / 4; grid-row: 2; }
  .svc-row-a { grid-column: 3; }
  .svc-detail { padding: 8px 4px 40px; }

  .step-row { grid-template-columns: 40px minmax(0, 1fr); padding: 24px 0; }
  .step-row p { grid-column: 2; }
}

@media (prefers-reduced-motion: reduce) {
  .strip-track { animation: none; }
}