/* ═══════════════════════════════════════════════════════════════
   OMNIADEV — LANDING
   Sistema de diseño tomado de DESIGN.md (tokens de marca)
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Superficies */
  --surface: #131313;
  --surface-dim: #131313;
  --surface-bright: #3a3939;
  --surface-container-lowest: #0e0e0e;
  --surface-container-low: #1c1b1b;
  --surface-container: #201f1f;
  --surface-container-high: #2a2a2a;
  --surface-container-highest: #353534;

  /* Texto */
  --on-surface: #e5e2e1;
  --on-surface-variant: #c2c6d8;

  /* Estructura */
  --outline: #8c90a1;
  --outline-variant: #424656;

  /* Primario — azul eléctrico */
  --primary: #b3c5ff;            /* azul legible para texto/íconos */
  --primary-container: #0066ff;  /* azul de acción: botones, estados activos */
  --on-primary-container: #f8f7ff;

  /* Secundario — plata metálica */
  --secondary: #c1c7cb;
  --secondary-container: #41484b;

  /* Tipografía */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  /* Layout */
  --container-max: 1280px;
  --margin-desktop: 64px;
  --margin-mobile: 20px;

  /* Movimiento */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: 150ms;
  --t-slow: 300ms;
}

/* ── Reset básico ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 24px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }

::selection { background: var(--primary-container); color: #fff; }

/* Foco visible siempre (accesibilidad) */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin-desktop);
}

/* ── Botones ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease);
}

.btn-primary {
  background: var(--primary-container);
  color: #fff;
  border: 1px solid var(--primary-container);
}
.btn-primary:hover { background: #1a75ff; border-color: #1a75ff; }

.btn-secondary {
  background: transparent;
  color: var(--on-surface);
  border: 1px solid var(--outline);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

/* ── Header ───────────────────────────────────────────────────── */
#site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(19, 19, 19, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-slow) var(--ease);
}
#site-header.scrolled { border-bottom-color: var(--outline-variant); }

#site-header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin-desktop);
}

.logo img { height: 40px; width: auto; }

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--on-surface);
  opacity: 0.6;
  transition: opacity var(--t-fast) var(--ease);
  padding: 8px 0;
}
.nav-links a:hover { opacity: 1; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--outline-variant);
  border-radius: 4px;
  color: var(--on-surface);
  width: 44px;
  height: 44px;
  font-size: 20px;
  cursor: pointer;
}

/* ── Hero ─────────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  border-bottom: 1px solid var(--outline-variant);
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* Viñeta para que el texto respire sobre la grilla */
.hero-vignette {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(ellipse 80% 70% at 35% 45%,
              rgba(19,19,19,0.55) 0%, rgba(19,19,19,0.15) 55%, rgba(19,19,19,0.7) 100%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 24px;
  align-items: center;
  width: 100%;
}

/* Chip / eyebrow — según manual: mono, fill azul 10%, borde azul izquierdo */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(0, 102, 255, 0.1);
  border-left: 2px solid var(--primary-container);
  padding: 6px 12px;
  margin-bottom: 24px;
}
.chip .dot {
  width: 6px; height: 6px;
  border-radius: 9999px;
  background: var(--primary-container);
  animation: pulse-dot 2s var(--ease) infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.hero-title {
  font-size: clamp(40px, 5.5vw, 68px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.hero-title .accent {
  color: var(--primary);
  background: linear-gradient(100deg, #b3c5ff 0%, #4d8dff 85%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 28px;
  color: var(--on-surface-variant);
  max-width: 52ch;
  margin-bottom: 40px;
}

.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── Terminal decorativa ──────────────────────────────────────── */
.terminal {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 22px;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.4); /* sombra dura, sin blur */
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--surface-container);
  border-bottom: 1px solid var(--outline-variant);
  /* esquinas internas rectas: contraste deliberado del manual */
}
.terminal-bar .t-dot {
  width: 10px; height: 10px;
  border-radius: 9999px;
  background: var(--surface-container-highest);
}
.terminal-bar .t-dot:first-child { background: var(--primary-container); }
.terminal-bar .t-title {
  margin-left: 8px;
  font-size: 12px;
  color: var(--outline);
  letter-spacing: 0.05em;
}

.terminal-body {
  padding: 20px;
  min-height: 240px;
  color: var(--secondary);
}
.terminal-body .line { display: block; min-height: 22px; white-space: pre-wrap; }
.terminal-body .prompt { color: var(--primary); }
.terminal-body .ok { color: var(--primary); }
.terminal-body .dim { color: var(--outline); }
.terminal-body .cursor {
  display: inline-block;
  width: 8px; height: 16px;
  background: var(--primary);
  vertical-align: -2px;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ── Scroll cue ───────────────────────────────────────────────── */
.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--outline);
}
.scroll-cue .cue-line {
  width: 1px;
  height: 32px;
  background: var(--outline-variant);
  position: relative;
  overflow: hidden;
}
.scroll-cue .cue-line::after {
  content: '';
  position: absolute;
  top: -12px; left: 0;
  width: 1px; height: 12px;
  background: var(--primary);
  animation: cue-drop 1.8s var(--ease) infinite;
}
@keyframes cue-drop {
  0% { top: -12px; }
  70%, 100% { top: 32px; }
}

/* ── Secciones: base ──────────────────────────────────────────── */
section { border-bottom: 1px solid var(--outline-variant); }

#servicios, #proceso, #proyectos, #contacto { padding-block: 96px; }

.section-head { margin-bottom: 56px; max-width: 640px; }

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: clamp(32px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.section-head p {
  font-size: 18px;
  line-height: 28px;
  color: var(--on-surface-variant);
}

/* ── Stats ────────────────────────────────────────────────────── */
#stats { background: var(--surface-container-lowest); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-block: 48px;
}

.stat {
  padding: 8px 24px;
  border-left: 1px solid var(--outline-variant);
}
.stat:first-child { border-left: none; padding-left: 0; }

.stat-number {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(32px, 3.5vw, 44px);
  font-weight: 500;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 14px;
  line-height: 20px;
  color: var(--on-surface-variant);
}

/* ── Cards (servicios / proyectos) ────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  padding: 24px;
  transition: border-color var(--t-fast) var(--ease),
              transform var(--t-slow) var(--ease);
}
.card:hover { border-color: var(--primary-container); transform: translateY(-4px); }

.card-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--outline-variant);
  border-radius: 4px;
  color: var(--primary);
  margin-bottom: 20px;
}
.card-icon svg { width: 24px; height: 24px; stroke-linecap: square; }

.card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
}

.card p {
  font-size: 15px;
  line-height: 24px;
  color: var(--on-surface-variant);
  margin-bottom: 20px;
}

.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--primary);
  background: rgba(0, 102, 255, 0.1);
  border-left: 1px solid var(--primary-container);
  padding: 3px 10px;
}

/* ── Proceso ──────────────────────────────────────────────────── */
#proceso { background: var(--surface-container-lowest); }

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  list-style: none;
  counter-reset: step;
}

.process-step {
  padding: 24px 24px 24px 0;
  border-top: 1px solid var(--outline-variant);
}

.step-number {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 16px;
}
.step-number::after { content: ' →'; color: var(--outline); }

.process-step h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.process-step p { font-size: 14.5px; line-height: 23px; color: var(--on-surface-variant); }

/* ── Proyectos ────────────────────────────────────────────────── */
.project-card { padding: 0; overflow: hidden; }
.project-card h3, .project-card p, .project-card .tags { margin-inline: 24px; }
.project-card h3 { margin-top: 24px; }
.project-card .tags { margin-bottom: 24px; }

.project-visual {
  height: 160px;
  display: grid;
  place-items: center;
  background:
    repeating-linear-gradient(0deg, transparent 0 27px, rgba(66,70,86,0.35) 27px 28px),
    repeating-linear-gradient(90deg, transparent 0 27px, rgba(66,70,86,0.35) 27px 28px),
    var(--surface-container-lowest);
  border-bottom: 1px solid var(--outline-variant);
}
.project-visual span {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--outline);
}

/* ── CTA final ────────────────────────────────────────────────── */
#cta { background: var(--surface-container-lowest); }

.cta-inner {
  padding-block: 96px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.cta-inner h2 {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 18px;
  color: var(--on-surface-variant);
  margin-bottom: 40px;
}
.btn-lg { min-height: 52px; padding: 0 40px; font-size: 16px; }

/* ── Contacto ─────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: 64px;
}

#contact-form { display: flex; flex-direction: column; gap: 20px; }

#contact-form label { display: flex; flex-direction: column; gap: 8px; }
#contact-form label span {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
}

#contact-form input,
#contact-form textarea {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 4px;
  color: var(--on-surface);
  font-family: var(--font-sans);
  font-size: 15px;
  padding: 12px 16px;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
  resize: vertical;
}
#contact-form input::placeholder,
#contact-form textarea::placeholder { color: var(--outline); }
#contact-form input:focus,
#contact-form textarea:focus {
  outline: none;
  border-color: var(--primary-container);
  box-shadow: 0 0 0 2px rgba(0, 102, 255, 0.25);
}

#contact-form .btn { align-self: flex-start; }
.form-note { font-size: 13px; color: var(--primary); min-height: 20px; }

.contact-direct {
  display: flex;
  flex-direction: column;
  gap: 28px;
  border-left: 1px solid var(--outline-variant);
  padding-left: 40px;
}
.contact-item { display: flex; flex-direction: column; gap: 6px; }
.contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--outline);
}
.contact-value { font-size: 16px; color: var(--on-surface); }
a.contact-value:hover { color: var(--primary); }

/* ── Footer ───────────────────────────────────────────────────── */
#site-footer { background: var(--surface-container-lowest); }

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  padding-block: 56px 40px;
}
.footer-logo { height: 44px; width: auto; margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  color: var(--on-surface-variant);
  max-width: 36ch;
}
.footer-nav { display: flex; gap: 28px; }
.footer-nav a {
  font-size: 14px;
  color: var(--on-surface);
  opacity: 0.6;
  transition: opacity var(--t-fast) var(--ease);
}
.footer-nav a:hover { opacity: 1; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-block: 20px;
  border-top: 1px solid var(--outline-variant);
  font-size: 13px;
  color: var(--outline);
}
.footer-mono { font-family: var(--font-mono); font-size: 12px; }

/* ── Widget WhatsApp ──────────────────────────────────────────── */
#wa-widget[hidden], .wa-panel[hidden] { display: none; }

#wa-widget {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.wa-fab {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  border: none;
  background: #25d366;
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease);
}
.wa-fab:hover { transform: translateY(-2px); }
.wa-fab svg { width: 28px; height: 28px; }

.wa-panel {
  width: 300px;
  background: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  border-radius: 8px;
  padding: 20px;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.4);
}
.wa-panel-head { display: flex; flex-direction: column; margin-bottom: 12px; }
.wa-panel-head strong { font-size: 15px; }
.wa-panel-head span { font-size: 12px; color: var(--on-surface-variant); }
.wa-panel-msg {
  font-size: 14px;
  line-height: 21px;
  color: var(--on-surface-variant);
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: 4px;
  padding: 12px;
  margin-bottom: 16px;
}
.wa-panel .btn { width: 100%; justify-content: center; }

/* ── Menú mobile ──────────────────────────────────────────────── */
#mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0; right: 0;
  z-index: 99;
  background: var(--surface-container-low);
  border-bottom: 1px solid var(--outline-variant);
  padding: 8px var(--margin-mobile) 24px;
  flex-direction: column;
  gap: 4px;
}
#mobile-menu.open { display: flex; }
#mobile-menu a {
  padding: 14px 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--on-surface);
  border-bottom: 1px solid var(--outline-variant);
}
#mobile-menu a:last-of-type { border-bottom: none; }
#mobile-menu .btn { margin-top: 12px; justify-content: center; }

/* ── Reveal al cargar / scrollear ─────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--t-slow) var(--ease),
              transform var(--t-slow) var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }

/* ── Reduced motion ───────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ── Mobile ───────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .container { padding-inline: var(--margin-mobile); }
  #site-header nav { padding-inline: var(--margin-mobile); }

  .nav-links, #site-header .btn { display: none; }
  .nav-toggle { display: grid; place-items: center; }

  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  #hero { padding-block: 112px 64px; }
  .terminal { max-width: 480px; }
  .hero-title { font-size: clamp(34px, 9vw, 44px); }
  .scroll-cue { display: none; }

  #servicios, #proceso, #proyectos, #contacto { padding-block: 64px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
  .stat:nth-child(odd) { border-left: none; padding-left: 0; }

  .cards-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; gap: 16px; }

  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-direct { border-left: none; padding-left: 0; }

  .footer-inner { flex-direction: column; }
  .footer-bottom { flex-direction: column; }

  #wa-widget { right: 16px; bottom: 16px; }
  .wa-panel { width: min(300px, calc(100vw - 32px)); }
}

/* Tablet: cards en 2 columnas */
@media (min-width: 901px) and (max-width: 1180px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}