/* ============================================
   OS1® · MASTER.CSS
   Sistema visual base — heredado por toda la red
   ============================================ */

/* ============================================
   PP EDITORIAL NEW
   Licensed to OS1® · Pangram Pangram Foundry
   Print + Web License (hasta 10K pageviews/mes)
   ============================================ */
@font-face {
  font-family: "PP Editorial New";
  src: url("/fts/PPEditorialNew-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "PP Editorial New";
  src: url("/fts/PPEditorialNew-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

/* ============================================
   VARIABLES NORMATIVAS
   Paleta institucional OS1® (manual gráfico vigente)
   ============================================ */
:root {
  /* Cromática */
  --negro: #0A0A0A;
  --tinta: #1A1A1A;
  --blanco-hueso: #F5F5F4;
  --rojo-os1: #B11226;
  --gris-medio: #8A8987;
  --gris-faint: #4A4A48;
  --gris-claro: #D8D7D5;
  --linea-suave: #E8E7E5;

  /* Tipografía */
  --inter: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --editorial: 'PP Editorial New', Georgia, 'Times New Roman', serif;
  --mono: 'IBM Plex Mono', 'Consolas', 'Courier New', monospace;
}

/* ============================================
   RESET Y BASE
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--inter);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--tinta);
  background: var(--blanco-hueso);
  overflow-x: hidden;
}

/* ============================================
   CONVENCIÓN EDITORIAL OS1®
   Símbolo ® como superíndice reducido
   ============================================ */
.reg {
  font-size: 0.55em;
  vertical-align: super;
  line-height: 0;
  font-weight: inherit;
  margin-left: 0.05em;
}

/* ============================================
   ELEMENTOS COMPARTIDOS
   ============================================ */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gris-faint);
}

.eyebrow-num {
  color: var(--rojo-os1);
  margin-right: 1.5em;
}

.editorial {
  font-family: var(--editorial);
  font-style: italic;
  font-weight: 400;
}

.accent-rojo {
  color: var(--rojo-os1);
}

/* ============================================
   ANIMACIÓN BASE
   ============================================ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ============================================
   NAVEGACIÓN UNIFICADA
   Logo + enlaces principales + CTA + toggle móvil
   Aplicable a: index, terminos, privacidad, evaluacion
   No aplicable a: oobc (tarjeta institucional)
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 22px clamp(24px, 6vw, 80px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  background: rgba(245, 245, 244, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 0.5px solid transparent;
  transition: border-color 0.3s ease;
}

.nav.scrolled {
  border-bottom-color: var(--linea-suave);
}

.nav-logo {
  height: 28px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.5vw, 40px);
  margin-left: auto;
}

.nav-link {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gris-faint);
  text-decoration: none;
  transition: color 0.25s ease;
  position: relative;
  padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--negro);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--rojo-os1);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-cta {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--negro);
  text-decoration: none;
  padding: 10px 18px;
  border: 0.5px solid var(--negro);
  transition: all 0.3s ease;
  margin-left: 8px;
}

.nav-cta:hover {
  background: var(--negro);
  color: var(--blanco-hueso);
}

/* Estado: la pagina actual es justamente "Solicitar evaluación" */
.nav-cta-active {
  background: var(--negro);
  color: var(--blanco-hueso);
}

/* Toggle móvil */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--negro);
  margin: 5px 0;
  transition: all 0.3s ease;
}

.nav.open .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav.open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav.open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ============================================
   FOOTER GENERAL — COMPARTIDO
   ============================================ */
.footer {
  background: var(--negro);
  color: var(--blanco-hueso);
  padding: clamp(56px, 8vh, 80px) clamp(24px, 6vw, 80px) clamp(40px, 5vh, 56px);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  padding-bottom: 48px;
  border-bottom: 0.5px solid var(--gris-faint);
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-lockup {
  height: 110px;
  width: auto;
  display: block;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 32px;
  padding-top: 40px;
}

.footer-legal {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gris-medio);
  line-height: 1.7;
}

.footer-legal-line {
  display: block;
}

.footer-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-links a {
  font-family: var(--inter);
  font-size: 13px;
  font-weight: 400;
  color: var(--gris-medio);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--blanco-hueso);
}

.footer-links-sep {
  color: var(--gris-faint);
  font-size: 10px;
}

/* ============================================
   ACCESIBILIDAD: FOCUS VISIBLE
   ============================================ */
a:focus-visible,
button:focus-visible {
  outline: 1px solid var(--rojo-os1);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ============================================
   RESPONSIVE BASE
   ============================================ */
@media (max-width: 1024px) {
  .nav-links { gap: 20px; }
  .nav-link { font-size: 10px; }
  .nav-cta { display: none; }
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--blanco-hueso);
    border-bottom: 0.5px solid var(--linea-suave);
    padding: 32px clamp(24px, 6vw, 80px);
    gap: 24px;
    align-items: flex-start;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
  }

  .nav.open .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link { font-size: 13px; }
  .nav-cta { display: inline-flex; }
}

@media (max-width: 700px) {
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}