/* ============================================================
   Layer 8 Security — Web 2026
   Design system: brand-led with strong typographic hierarchy
   ============================================================ */

/* --- Fonts (locales del manual de identidad) --- */
@font-face {
  font-family: 'Oswald';
  src: url('../fonts/oswald/Oswald-Bold.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: 'Oswald';
  src: url('../fonts/oswald/Oswald-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: 'Oswald';
  src: url('../fonts/oswald/Oswald-Medium.ttf') format('truetype');
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: 'Oswald';
  src: url('../fonts/oswald/Oswald-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/montserrat/Montserrat-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/montserrat/Montserrat-Medium.ttf') format('truetype');
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/montserrat/Montserrat-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/montserrat/Montserrat-Bold.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
}

/* --- Design tokens --- */
:root {
  /* Brand */
  --navy:        #003049;
  --navy-deep:   #001f30;
  --red:         #c1121f;
  --red-dark:    #780000;
  --blue:        #669bbc;
  --blue-soft:   #d7e3ec;
  --white:       #ffffff;

  /* Neutrals */
  --text:        #1a1a1a;
  --text-soft:   #404040;
  --muted:       #6c757d;
  --rule:        #e5e7eb;
  --bg-tint:     #f7f8fa;
  --bg-cool:     #eff2f6;

  /* Type */
  --font-head: 'Oswald', 'Inter', system-ui, sans-serif;
  --font-body: 'Montserrat', 'Inter', system-ui, sans-serif;

  /* Spacing rhythm */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 6rem;

  /* Containers */
  --maxw: 1200px;
  --maxw-narrow: 880px;

  /* Radius / shadow */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 32px rgba(0, 48, 73, .12);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; }

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-4);
  color: var(--text);
}
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { margin: 0 0 var(--space-3); color: var(--text-soft); }
p.lead {
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--text);
  max-width: 65ch;
}

.eyebrow {
  font-family: var(--font-head);
  font-size: 0.875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.eyebrow--muted { color: var(--muted); }

/* --- Layout primitives --- */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--space-4);
}
.container--narrow { max-width: var(--maxw-narrow); }

.section {
  padding: var(--space-8) 0;
  position: relative;
}
.section--tint   { background: var(--bg-tint); }
.section--cool   { background: var(--bg-cool); }
.section--dark   { background: var(--navy); color: var(--white); }
.section--dark p { color: rgba(255,255,255,.85); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--white); }
.section--dark .eyebrow { color: var(--blue); }

.section-header { text-align: center; max-width: 720px; margin: 0 auto var(--space-7); }
.section-header--left { text-align: left; margin-left: 0; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.875rem 1.5rem;
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 0.9375rem;
  text-transform: uppercase;
  border-radius: var(--r-sm);
  transition: all .2s ease;
  cursor: pointer;
}
.btn--primary {
  background: var(--red);
  color: var(--white);
}
.btn--primary:hover {
  background: var(--red-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(193,18,31,.3);
}
.btn--ghost {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,.4);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
}
.btn--ghost-dark {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--text);
}
.btn--ghost-dark:hover {
  background: var(--text);
  color: var(--white);
}
.btn--arrow::after {
  content: '→';
  font-size: 1.125em;
  transition: transform .2s ease;
}
.btn--arrow:hover::after { transform: translateX(4px); }

/* --- Nav --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: var(--space-3) 0;
  background: rgba(0, 48, 73, 0);
  backdrop-filter: blur(0px);
  transition: background .3s ease, backdrop-filter .3s ease, box-shadow .3s ease;
}
.nav.is-scrolled {
  background: rgba(0, 48, 73, .92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,255,255,.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--space-4);
}
.nav-logo img { height: 36px; }
.nav-links {
  display: flex;
  gap: var(--space-5);
  align-items: center;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--white);
  letter-spacing: 0.04em;
  position: relative;
  transition: color .2s ease;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0;
  width: 0; height: 2px;
  background: var(--red);
  transition: width .25s ease;
}
.nav-links a:hover::after,
.nav-links a.is-active::after { width: 100%; }
.nav-links .btn { color: var(--white); }
.nav-toggle { display: none; color: var(--white); padding: var(--space-2); }
.nav-toggle svg { width: 24px; height: 24px; }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at top right, rgba(193,18,31,.18), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(102,155,188,.12), transparent 60%),
    var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  padding: var(--space-8) 0 var(--space-7);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, transparent, black 30%, black 70%, transparent);
}
.hero-content { position: relative; z-index: 1; }
.hero-eyebrow {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.hero-eyebrow::before {
  content: '';
  width: 32px; height: 2px;
  background: var(--red);
}
.hero h1 {
  font-size: clamp(2.75rem, 6.5vw, 5rem);
  max-width: 14ch;
  margin-bottom: var(--space-4);
  color: var(--white);
}
.hero h1 .accent { color: var(--red); }
.hero-lead {
  font-size: clamp(1.125rem, 1.8vw, 1.375rem);
  max-width: 56ch;
  color: rgba(255,255,255,.85);
  margin-bottom: var(--space-6);
}
.hero-cta { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.hero-meta {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255,255,255,.12);
  flex-wrap: wrap;
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
}
.hero-meta-item strong {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}
.hero-meta-item span {
  font-size: 0.875rem;
  color: rgba(255,255,255,.6);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: var(--space-1);
}

/* --- Value props (3 cards) --- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
}
.value-card {
  padding: var(--space-5);
  border-radius: var(--r-md);
  background: var(--white);
  border: 1px solid var(--rule);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--navy);
}
.value-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  border-radius: var(--r-sm);
  background: var(--blue-soft);
  margin-bottom: var(--space-4);
  font-size: 1.5rem;
}
.value-card-icon--red { background: rgba(193,18,31,.1); }
.value-card-icon--navy { background: rgba(0,48,73,.08); }
.value-card h3 {
  font-size: 1.375rem;
  margin-bottom: var(--space-2);
  color: var(--navy);
}
.value-card p {
  color: var(--text-soft);
  margin: 0;
}

/* --- Services grid (6-7 buckets) --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-4);
}
.service-card {
  position: relative;
  padding: var(--space-5);
  background: var(--white);
  border-radius: var(--r-md);
  border: 1px solid var(--rule);
  transition: all .25s ease;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 0;
  background: var(--red);
  transition: height .3s ease;
}
.service-card:hover {
  border-color: var(--navy);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.service-card:hover::before { height: 100%; }
.service-card-num {
  font-family: var(--font-head);
  font-size: 0.875rem;
  color: var(--muted);
  letter-spacing: 0.18em;
  margin-bottom: var(--space-2);
}
.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
  color: var(--navy);
}
.service-card p {
  font-size: 0.9375rem;
  margin-bottom: var(--space-4);
}
.service-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  font-size: 0.8125rem;
  color: var(--muted);
}
.service-card-tags span::after {
  content: '·';
  margin-left: var(--space-2);
  color: var(--rule);
}
.service-card-tags span:last-child::after { content: ''; }
.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--red);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: var(--space-3);
  transition: gap .2s ease;
}
.service-card-link:hover { gap: var(--space-3); }
.service-card-link::after { content: '→'; }

/* --- Logo strips (partners / certs / clientes) --- */
.logo-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4) var(--space-6);
  align-items: center;
  justify-items: center;
}
.logo-strip img {
  max-height: 56px;
  max-width: 140px;
  filter: grayscale(1) opacity(0.55);
  transition: filter .25s ease;
  object-fit: contain;
}
.logo-strip img:hover { filter: grayscale(0) opacity(1); }

/* --- Stats band --- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-5);
  text-align: center;
}
.stat-num {
  font-family: var(--font-head);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  display: block;
}
.stat-num .accent { color: var(--red); }
.stat-label {
  font-family: var(--font-head);
  font-size: 0.875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,.7);
  margin-top: var(--space-2);
  display: block;
}

/* --- Events list --- */
.events-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--space-3);
}
@media (max-width: 900px) {
  .events-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 500px) {
  .events-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.event-card {
  background: var(--white);
  border-radius: var(--r-md);
  padding: var(--space-5) var(--space-4);
  text-align: center;
  border: 1px solid var(--rule);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.event-card:hover {
  transform: translateY(-3px);
  border-color: var(--red);
  box-shadow: 0 12px 24px rgba(0, 0, 0, .2);
}
/* Variante dark — para logos diseñados para fondo oscuro */
.event-card--dark {
  background: var(--navy-deep);
  border-color: rgba(255,255,255,.08);
}
.event-card--dark:hover { border-color: var(--red); }
.event-card--dark .event-card-name { color: var(--white); }

.event-card-logo {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}
.event-card-logo img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}
.event-card-name {
  color: var(--navy);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
}

/* --- CTA final --- */
.cta-final {
  background: linear-gradient(135deg, var(--navy), var(--navy-deep));
  padding: var(--space-8) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-final::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(193,18,31,.12), transparent 50%);
}
.cta-final-inner { position: relative; }
.cta-final h2 {
  color: var(--white);
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin-bottom: var(--space-4);
  max-width: 20ch;
  margin-left: auto; margin-right: auto;
}
.cta-final p {
  color: rgba(255,255,255,.85);
  font-size: 1.125rem;
  margin-bottom: var(--space-5);
}

/* --- Footer --- */
.footer {
  background: var(--navy-deep);
  color: rgba(255,255,255,.7);
  padding: var(--space-7) 0 var(--space-4);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}
.footer-brand img { height: 40px; margin-bottom: var(--space-3); }
.footer-brand p { color: rgba(255,255,255,.65); font-size: 0.9375rem; max-width: 36ch; }
.footer h4 {
  color: var(--white);
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer ul li { margin-bottom: var(--space-2); }
.footer ul a {
  color: rgba(255,255,255,.65);
  font-size: 0.9375rem;
  transition: color .2s ease;
}
.footer ul a:hover { color: var(--white); }
.footer-bottom {
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.875rem;
  color: rgba(255,255,255,.5);
}
.footer-social { display: flex; gap: var(--space-3); }
.footer-social a {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 50%;
  transition: all .2s ease;
}
.footer-social a:hover {
  background: var(--red);
  border-color: var(--red);
}
.footer-social svg { width: 16px; height: 16px; fill: rgba(255,255,255,.7); }
.footer-social a:hover svg { fill: var(--white); }

/* --- Utility --- */
.text-center { text-align: center; }
.mt-7 { margin-top: var(--space-7); }
.mb-0 { margin-bottom: 0; }
.divider {
  height: 1px;
  background: var(--rule);
  margin: var(--space-7) 0;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; align-items: center; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--navy);
    flex-direction: column;
    padding: var(--space-4);
    gap: var(--space-3);
    box-shadow: var(--shadow-md);
  }
  .nav-links.is-open { display: flex; }
  .nav.is-scrolled .nav-links { background: var(--navy); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-meta { gap: var(--space-5); }
  .hero-meta-item strong { font-size: 2rem; }
}
@media (max-width: 600px) {
  .section { padding: var(--space-7) 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding: 7rem 0 var(--space-7); }
}