/* ============================================
   LNQ — AI Experience
   Tokens: fondo negro cálido, blanco hueso, azul eléctrico
   Tipografía: Space Grotesk (display) + Inter (texto)
   ============================================ */

:root {
  --bg: #0a0a0a;
  --bg-panel: #121214;
  --bg-panel-2: #17171a;
  --fg: #f5f4f0;
  --fg-muted: #a3a2a0;
  --fg-faint: #6d6c6a;
  --accent: #1414ee;
  --accent-bright: #3d3dff;
  --line: rgba(245, 244, 240, 0.12);
  --line-soft: rgba(245, 244, 240, 0.06);

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ---------- Typography ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  margin: 0;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.6rem, 6vw, 4.8rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p { margin: 0; }

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-bright);
  font-weight: 600;
}

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--fg-muted);
  max-width: 46ch;
}

/* ---------- Buttons / links ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 26px;
  border-radius: 3px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-bright); }

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--fg); }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 10, 10, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand img { height: 30px; width: auto; }

.brand .tag {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--fg-muted);
  padding-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.site-nav a {
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--fg-muted);
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--fg); }

.nav-cta { display: none; }
@media (min-width: 720px) {
  .nav-cta { display: inline-flex; }
}

.menu-toggle {
  display: inline-flex;
  background: none;
  border: 1px solid var(--line);
  color: var(--fg);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
}
@media (min-width: 720px) {
  .menu-toggle { display: none; }
}

.site-nav {
  display: none;
}
@media (min-width: 720px) {
  .site-nav { display: flex; }
}

.mobile-nav {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--line-soft);
  background: var(--bg);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 16px var(--gutter);
  border-bottom: 1px solid var(--line-soft);
  text-decoration: none;
  color: var(--fg-muted);
  font-size: 0.95rem;
}
@media (min-width: 720px) {
  .mobile-nav { display: none !important; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 12vw, 140px) 0 clamp(56px, 9vw, 100px);
  border-bottom: 1px solid var(--line-soft);
}

.hero .wrap {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 40px;
}

.hero-copy { max-width: 760px; }

.hero .eyebrow { margin-bottom: 22px; display: block; }

.hero h1 { margin-top: 22px; max-width: 14ch; }

.hero .lede { margin-top: 26px; }

.hero-actions {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-dot {
  position: absolute;
  right: -120px;
  top: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--accent-bright), var(--accent) 60%, transparent 75%);
  opacity: 0.55;
  filter: blur(2px);
  z-index: 1;
}

.hero-strip {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (min-width: 720px) {
  .hero-strip { grid-template-columns: repeat(4, 1fr); }
}
.hero-strip .item {
  font-family: var(--font-display);
  font-size: 0.92rem;
  color: var(--fg-muted);
}
.hero-strip .item strong {
  display: block;
  color: var(--fg);
  font-weight: 600;
}

/* ---------- Section shell ---------- */

section { padding: clamp(64px, 10vw, 120px) 0; }

.section-head {
  display: grid;
  gap: 20px;
  margin-bottom: clamp(44px, 7vw, 76px);
  max-width: 640px;
}

.section-alt { background: var(--bg-panel); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }

/* ---------- Process (steps) ---------- */

.steps {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 860px) {
  .step { grid-template-columns: 80px 260px 1fr; align-items: baseline; }
}

.step-index {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--accent-bright);
  font-weight: 600;
}

.step h3 { color: var(--fg); }

.step p {
  color: var(--fg-muted);
  max-width: 56ch;
  margin-top: 8px;
}
@media (min-width: 860px) {
  .step p { margin-top: 0; }
}

.step-highlight { border-color: var(--accent); }
.step-highlight .step-index { color: var(--accent-bright); }

/* ---------- Services grid ---------- */

.services {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (min-width: 760px) {
  .services { grid-template-columns: repeat(2, 1fr); }
}

.service {
  background: var(--bg);
  padding: clamp(28px, 4vw, 44px);
}

.service h3 { margin-bottom: 16px; }

.service ul {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.service li {
  color: var(--fg-muted);
  font-size: 0.95rem;
  padding-left: 18px;
  position: relative;
}
.service li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--accent-bright);
  border-radius: 50%;
}

/* ---------- Principles ---------- */

.principles {
  display: grid;
  gap: 40px;
}
@media (min-width: 760px) {
  .principles { grid-template-columns: repeat(3, 1fr); gap: 48px; }
}

.principle h3 {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  margin-bottom: 14px;
}
.principle p { color: var(--fg-muted); }

/* ---------- Work / capacities ---------- */

.capacity-list {
  border-top: 1px solid var(--line);
}
.capacity {
  display: grid;
  gap: 8px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 760px) {
  .capacity { grid-template-columns: 280px 1fr; align-items: start; gap: 32px; }
}
.capacity h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--fg);
}
.capacity p { color: var(--fg-muted); }

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  gap: 56px;
}
@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

.contact-info .lede { margin-top: 18px; }

.contact-line {
  margin-top: 32px;
  display: grid;
  gap: 16px;
}
.contact-line a {
  display: block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  width: fit-content;
}
.contact-line a:hover { color: var(--accent-bright); }
.contact-line .label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 6px;
}

form.contact-form {
  display: grid;
  gap: 18px;
}

.field { display: grid; gap: 8px; }

.field label {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.field input,
.field textarea {
  background: var(--bg-panel-2);
  border: 1px solid var(--line);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 14px;
  border-radius: 3px;
  resize: vertical;
}
.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--accent-bright);
  outline-offset: 1px;
}

.form-note {
  font-size: 0.82rem;
  color: var(--fg-faint);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 44px 0;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand img { height: 22px; }
.footer-copy {
  font-size: 0.82rem;
  color: var(--fg-faint);
}
.footer-links {
  display: flex;
  gap: 22px;
}
.footer-links a {
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-decoration: none;
}
.footer-links a:hover { color: var(--fg); }

/* ---------- Focus visibility ---------- */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}