/* Lateral Solvers — hoja de estilos
   Dirección "Pizarra": fondo casi negro con retícula, verde lima, tipografía técnica. */

:root {
  --bg: #0e0f12;
  --bg-2: #14161a;
  --bg-3: #1c1e24;
  --grid: #1a1c21;
  --ink: #f2f2ee;
  --ink-2: #c9cbc4;
  --muted: #9a9ea8;
  --faint: #5c606a;
  --line: #262930;
  --line-strong: #3a3e48;
  --accent: #c8f24a;
  --accent-dark: #a8d22c;
  --accent-ink: #0e0f12;
  --accent-deep: #4a5a10;

  --display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --body: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --max: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  background: var(--bg);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--display); font-weight: 700; margin: 0; letter-spacing: -0.03em; color: var(--ink); }
h1 { font-size: clamp(2.2rem, 4.8vw, 4rem); line-height: 0.95; }
h2 { font-size: clamp(1.5rem, 3vw, 2.4rem); line-height: 1.05; }
h2 em, h1 em { font-style: normal; color: var(--accent); }
h3 { font-size: clamp(1.05rem, 1.5vw, 1.25rem); line-height: 1.15; font-weight: 500; }
p { margin: 0 0 1em; }
a { color: inherit; }
strong { font-weight: 600; color: var(--ink); }

.mono { font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }

.skip {
  position: absolute; left: -999px; top: 8px;
  background: var(--accent); color: var(--accent-ink); padding: 8px 14px; z-index: 100;
}
.skip:focus { left: 8px; }

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

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 0 var(--gutter);
  min-height: 68px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 0.95rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none;
}
.brand em { font-style: normal; color: var(--ink); }
.brand em::before { content: "_"; color: var(--accent); }
.brand em::after { content: "/"; color: var(--accent); }
.brand-mark { display: inline-block; width: 8px; height: 8px; background: var(--accent); }
.nav nav { display: flex; gap: 26px; align-items: center; }
.nav nav a {
  text-decoration: none; font-family: var(--mono); font-size: 0.8rem; color: var(--muted);
  transition: color .15s var(--ease);
}
.nav nav a:hover { color: var(--ink); }
.nav-cta { color: var(--accent) !important; }
.nav-cta::before { content: "→ "; }
.nav-cta:hover { color: var(--ink) !important; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--line-strong);
  width: 44px; height: 44px; cursor: pointer; flex-direction: column; gap: 6px; align-items: center; justify-content: center;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--ink); transition: transform .25s var(--ease); }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
.menu-movil {
  position: sticky; top: 69px; z-index: 49;
  display: flex; flex-direction: column;
  background: var(--bg); border-bottom: 1px solid var(--line);
}
.menu-movil[hidden] { display: none; }
.menu-movil a { padding: 16px var(--gutter); text-decoration: none; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 0.9rem; color: var(--ink); }

/* ---------- Layout ---------- */
.section {
  max-width: var(--max); margin: 0 auto;
  padding: clamp(48px, 6vw, 88px) var(--gutter);
  border-top: 1px solid var(--line);
}
.section--dark, .section--tint { max-width: none; border-top: 1px solid var(--line); }
.section--dark { background: var(--bg-2); }
.section--dark > *, .section--tint > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.section--tint { background: var(--bg-2); }
.section-head { max-width: 820px; margin-bottom: clamp(32px, 5vw, 56px); }
.section-head .eyebrow { margin-bottom: 18px; }
.section-head .sub { font-size: 1rem; color: var(--muted); margin-top: 18px; max-width: 620px; }

.eyebrow { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); margin: 0; }
.eyebrow .mono { color: var(--accent); }
.eyebrow::before { content: ""; flex: 0 0 8px; height: 8px; background: var(--accent); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 22px;
  font: 500 0.82rem/1 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; cursor: pointer;
  border: 1px solid var(--line-strong);
  transition: background .15s var(--ease), color .15s var(--ease), border-color .15s var(--ease);
}
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary::after { content: "→"; }
.btn-primary:hover { background: var(--ink); border-color: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); background: var(--bg-3); }

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max); margin: 0 auto;
  padding: clamp(24px, 4vh, 44px) var(--gutter) clamp(20px, 3vh, 36px);
  min-height: calc(100svh - 68px);
  display: flex; flex-direction: column; justify-content: center;
}
.hero .eyebrow { margin-bottom: 14px; }
.hero-tagline { font-family: var(--mono); font-size: clamp(0.85rem, 1.1vw, 0.98rem); line-height: 1.5; color: var(--ink-2); margin: 0 0 16px; max-width: 700px; }
.hero-tagline em { font-style: normal; color: var(--accent); }
.hero h1 .shift {
  display: inline-block; color: var(--accent);
  animation: shift-in .8s var(--ease) both; animation-delay: .2s;
}
@keyframes shift-in {
  from { opacity: 0; transform: translateX(-24px); }
  to { opacity: 1; transform: none; }
}
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 32px; align-items: end; margin-top: clamp(16px, 2.5vh, 24px);
}
.lede { font-size: clamp(0.95rem, 1.15vw, 1.05rem); line-height: 1.5; color: var(--muted); max-width: 540px; margin: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
/* ---------- Typology ---------- */
.typology { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.type-card { padding: 22px 20px 20px; display: flex; flex-direction: column; gap: 8px; min-height: 260px; background: var(--bg); }
.type-card p { margin: 0; font-size: 0.92rem; color: var(--muted); }
.type-card h3 { margin-bottom: 4px; font-size: clamp(1.2rem, 1.6vw, 1.5rem); font-weight: 500; }
.type-n { color: var(--faint); }
.type-n::before { content: "[ "; } .type-n::after { content: " ]"; }
.type-ex { font-style: italic; }
.type-do { margin-top: auto !important; padding-top: 14px; font-family: var(--mono); font-size: 0.78rem !important; letter-spacing: 0.02em; color: var(--ink) !important; border-top: 1px solid var(--line); }
.type-card--active { background: var(--accent); color: var(--accent-ink); }
.type-card--active h3, .type-card--active p, .type-card--active .type-n { color: var(--accent-ink); }
.type-card--active .type-n { color: var(--accent-deep); }
.type-card--active .type-n::after { content: " ] ← nuestro fuerte"; }
.type-card--active .type-do { color: var(--accent-ink) !important; border-color: var(--accent-deep); }
.type-card--active h3 { font-weight: 700; }

.typology--two { grid-template-columns: repeat(2, 1fr); }
.type-list { margin: 4px 0 0; padding-left: 18px; color: var(--muted); font-size: 0.92rem; display: flex; flex-direction: column; gap: 6px; }
.type-list li::marker { color: var(--accent); }
.type-card--active .type-list { color: var(--accent-ink); }
.type-card--active .type-list li::marker { color: var(--accent-deep); }

.quote { margin: clamp(36px, 6vw, 64px) 0 0; max-width: 820px; border-left: 2px solid var(--accent); padding-left: 24px; }
.quote p { font-family: var(--display); font-size: clamp(1.15rem, 1.9vw, 1.6rem); line-height: 1.25; font-weight: 500; margin: 0 0 10px; }
.quote cite { font-style: normal; font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.quote cite::before { content: "// "; }
.quote-reply { margin: 22px 0 0 26px; max-width: 760px; font-family: var(--display); font-size: clamp(1.15rem, 1.9vw, 1.6rem); font-weight: 500; line-height: 1.25; color: var(--ink); }
.quote-reply em { font-style: normal; color: var(--accent); font-weight: 500; }

/* ---------- Método: diagrama ---------- */
.flow { margin: 0; }
.flow-svg { display: block; width: 100%; height: auto; max-width: 1100px; }
.flow-steps { list-style: none; margin: 8px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 24px; max-width: 1100px; }
.flow-steps li { display: flex; flex-direction: column; gap: 8px; color: var(--ink-2); font-size: 0.92rem; line-height: 1.5; }
.flow-steps .mono { color: var(--faint); }
.flow-steps li:nth-child(3) .mono, .flow-steps li:nth-child(4) .mono, .flow-steps li:nth-child(5) .mono { color: var(--accent); }

/* ---------- Offers ---------- */
.offers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.offer { padding: 26px 24px; display: flex; flex-direction: column; gap: 12px; background: var(--bg); }
.offer--entry { background: var(--bg-2); box-shadow: inset 0 3px 0 var(--accent); padding-top: 30px; }
.offer-tag { margin: 0; }
.offer--entry .offer-tag { color: var(--accent); }
.offer-meta { text-transform: none; letter-spacing: 0; color: var(--faint); margin: -4px 0 4px; }
.offer p:not(.mono) { color: var(--muted); margin: 0; }
.offer .btn { margin-top: auto; align-self: flex-start; }

.network { margin-top: clamp(36px, 6vw, 64px); display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 32px; align-items: start; padding: 26px 30px; border: 1px solid var(--line); background: var(--bg-2); }
.network h3 { margin-bottom: 10px; }
.network-text p { margin: 0; color: var(--muted); }
.network-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.network-list li { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink); border: 1px solid var(--line-strong); padding: 8px 12px; }

.rules { margin-top: 20px; padding: 26px 30px; border: 1px dashed var(--line-strong); background: var(--bg-2); max-width: 860px; }
.rules h3 { margin-bottom: 14px; }
.rules ul { margin: 0; padding-left: 20px; color: var(--muted); }
.rules li { margin-bottom: 10px; }
.rules li::marker { color: var(--accent); }
.rules li:last-child { margin-bottom: 0; }

/* ---------- Who ---------- */
.who { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 48px; align-items: start; }
.who-text p { color: var(--muted); font-size: 1rem; }
.who-text a { color: var(--ink); text-decoration-color: var(--accent); text-underline-offset: 3px; }
.who-text a:hover { color: var(--accent); }
.who-quote { font-family: var(--display); font-size: 1.1rem !important; font-weight: 500; color: var(--ink) !important; margin-top: 26px; border-left: 2px solid var(--accent); padding-left: 18px; }
.who-quote .mono { margin-left: 8px; color: var(--faint); }
.who-facts { list-style: none; padding: 0; margin: 0; border: 1px solid var(--line); background: var(--bg); }
.who-facts li { padding: 16px 20px; display: flex; flex-direction: column; gap: 4px; color: var(--ink-2); }
.who-facts li + li { border-top: 1px solid var(--line); }
.who-facts .mono { color: var(--faint); }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 24px; max-width: 860px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field label { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.field input, .field textarea {
  font: 1rem var(--body); color: var(--ink); background: var(--bg-2);
  border: 1px solid var(--line-strong); padding: 12px 14px; min-height: 48px;
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(200, 242, 74, 0.2); }
.field textarea { resize: vertical; }
.field[data-invalid="true"] input, .field[data-invalid="true"] textarea { border-color: #ff9b8a; }
.error { margin: 0; font-family: var(--mono); font-size: 0.78rem; color: #ffb08a; min-height: 1em; }
.contact-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; }
.contact-alt { margin: 0; color: var(--muted); font-size: 0.92rem; }
.contact-alt a { color: var(--ink); text-decoration-color: var(--accent); text-underline-offset: 3px; }
.form-status { grid-column: 1 / -1; margin: 0; color: var(--accent); font-family: var(--mono); font-size: 0.85rem; }

/* ---------- Footer ---------- */
.footer {
  max-width: var(--max); margin: 0 auto; padding: 36px var(--gutter) 44px;
  border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px;
  color: var(--muted); font-family: var(--mono); font-size: 0.78rem;
}
.footer p { margin: 0; display: flex; align-items: center; gap: 10px; }
.footer-links { gap: 22px !important; }
.footer-links a { text-decoration: none; border-bottom: 1px solid var(--line-strong); }
.footer-links a:hover { color: var(--accent); border-color: var(--accent); }
.footer-small { flex-basis: 100%; color: var(--faint); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .typology, .typology--two { grid-template-columns: 1fr; }
  .offers { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .nav nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .hero { min-height: 0; display: block; }
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-actions { justify-content: flex-start; }
  .hero-tagline { max-width: none; }
  .who { grid-template-columns: 1fr; gap: 32px; }
  .network { grid-template-columns: 1fr; gap: 20px; }
  .contact { grid-template-columns: 1fr; }
  .flow-svg { display: none; }
  .flow-steps { grid-template-columns: 1fr; gap: 14px; margin-top: 0; }
  .flow-steps li { border-top: 1px solid var(--line); padding-top: 14px; font-size: 1rem; color: var(--ink-2); }
}
@media (max-width: 560px) {
  body { font-size: 15.5px; background-size: 32px 32px; }
  .typology { grid-template-columns: 1fr; }
  .type-card { min-height: 0; }
  .btn { width: 100%; }
}