/* ============================================================
   Augai — augaiworks.com
   Sistema de identidad v1.0. Paleta monocromática, sin acento.
   Inter (display/body) · JetBrains Mono (detalles/metadatos).
   ============================================================ */

:root {
  /* Paleta */
  --tinta:    #0A0A0B;  /* principal */
  --grafito:  #1A1A1F;  /* secundario */
  --concreto: #6E6E76;  /* medio */
  --plata:    #C0C0C8;  /* acento */
  --niebla:   #D4D4D8;  /* línea */
  --hueso:    #FAFAFA;  /* fondo */
  --papel:    #FFFFFF;  /* reset */

  /* Roles */
  --bg:        var(--hueso);
  --surface:   var(--papel);
  --text:      var(--grafito);
  --text-soft: var(--concreto);
  --line:      var(--niebla);

  /* Tipografía */
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Ritmo */
  --wrap: 1080px;
  --pad: clamp(1.25rem, 5vw, 2.5rem);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* -------- Wordmark -------- */
.wordmark {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
  color: var(--tinta);
  text-decoration: none;
  line-height: 1;
}
.wordmark--light { color: var(--papel); }

/* -------- Eyebrow (mono label) -------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--concreto);
  margin: 0 0 1rem;
}
.eyebrow--light { color: var(--plata); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 250, 0.82);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}
.nav__links {
  display: flex;
  gap: clamp(1.25rem, 4vw, 2.25rem);
  font-size: 0.95rem;
}
.nav__links a {
  text-decoration: none;
  color: var(--text-soft);
  transition: color 0.15s ease;
}
.nav__links a:hover { color: var(--tinta); }

/* ============================================================
   HERO (dark)
   ============================================================ */
.hero {
  background: var(--tinta);
  color: var(--papel);
  padding: clamp(5rem, 14vw, 9.5rem) 0 clamp(4.5rem, 12vw, 8rem);
  position: relative;
  overflow: hidden;
}
/* glow sobrio, sin color */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 90% at 78% 12%, rgba(192,192,200,0.10), transparent 60%),
    radial-gradient(50% 70% at 15% 100%, rgba(26,26,31,0.9), transparent 70%);
  pointer-events: none;
}
.hero .wrap { position: relative; }

.hero__title {
  font-size: clamp(2.6rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0.4rem 0 1.5rem;
}
.hero__lead {
  max-width: 42ch;
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  line-height: 1.55;
  color: var(--plata);
  margin: 0 0 1.5rem;
}
.hero__note {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--concreto);
  margin: 0 0 2.5rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.85rem; }

/* -------- Buttons -------- */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--papel); color: var(--tinta); }
.btn--primary:hover { background: var(--plata); }
.btn--ghost { color: var(--papel); border-color: rgba(192,192,200,0.35); }
.btn--ghost:hover { border-color: var(--plata); background: rgba(255,255,255,0.05); }

/* ============================================================
   SECTIONS (light)
   ============================================================ */
.section { padding: clamp(4rem, 10vw, 7rem) 0; }
.section--alt { background: var(--papel); border-block: 1px solid var(--line); }

.section__title {
  font-size: clamp(1.9rem, 5vw, 2.9rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--tinta);
  margin: 0 0 1rem;
}
.section__lead {
  max-width: 60ch;
  font-size: 1.1rem;
  color: var(--text-soft);
  margin: 0 0 3rem;
}

/* -------- Grids -------- */
.grid { display: grid; gap: 1.5rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* -------- Cards (esencia) -------- */
.card {
  background: var(--papel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.75rem;
}
.section--alt .card { background: var(--hueso); }
.card__kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--concreto);
  margin: 0 0 0.85rem;
}
.card__body { margin: 0; color: var(--text); }

/* -------- Principles -------- */
.principle { padding-top: 1.25rem; border-top: 1px solid var(--line); }
.principle__num {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--concreto);
  margin: 0 0 0.75rem;
}
.principle__title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--tinta);
  margin: 0 0 0.6rem;
}
.principle__body { margin: 0; font-size: 0.98rem; color: var(--text-soft); }

/* ============================================================
   MANIFIESTO (dark)
   ============================================================ */
.manifesto {
  background: var(--grafito);
  color: var(--papel);
  padding: clamp(4.5rem, 12vw, 8rem) 0;
}
.manifesto__text {
  display: flex;
  flex-direction: column;
  gap: 0.15em;
  font-size: clamp(1.6rem, 4.5vw, 2.8rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.22;
  max-width: 22ch;
  margin: 0;
}
.manifesto__text .dim { color: var(--concreto); font-weight: 400; }

/* ============================================================
   PRODUCTOS
   ============================================================ */
.product {
  display: flex;
  flex-direction: column;
  background: var(--papel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.75rem;
  min-height: 15rem;
}
.product--muted { background: transparent; border-style: dashed; }
.product__tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--concreto);
  margin: 0 0 auto;
}
.product__name {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--tinta);
  margin: 1.5rem 0 0.6rem;
}
.product__body { margin: 0; color: var(--text-soft); font-size: 0.98rem; }
.product__endorse {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--concreto);
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

/* ============================================================
   FOOTER (dark)
   ============================================================ */
.footer {
  background: var(--tinta);
  color: var(--plata);
  padding: clamp(4rem, 10vw, 6.5rem) 0 2.5rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--grafito);
}
.footer__title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--papel);
  margin: 0 0 1.5rem;
  max-width: 18ch;
}
.footer__cta a {
  font-size: 1.15rem;
  color: var(--papel);
  text-decoration: none;
  border-bottom: 1px solid var(--concreto);
  padding-bottom: 2px;
  transition: border-color 0.15s ease;
}
.footer__cta a:hover { border-color: var(--papel); }
.footer__meta { display: flex; flex-direction: column; gap: 1.25rem; align-items: flex-start; }
.footer__legal { margin: 0; font-size: 0.9rem; color: var(--concreto); max-width: 34ch; }

.footer__bar {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 2rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--concreto);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .nav__links { gap: 1.1rem; font-size: 0.9rem; }
}

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