/* ------------------------------------------------------------------
   DRTEL — Despliegue de Redes de Telecomunicaciones S.L.
   Sistema de diseño · alineado con el Brand Style Guide
   Color corporativo #3999d5 · wordmark con gradiente azul → verde
------------------------------------------------------------------ */

/* Reset moderno --------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body, h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

/* Sistema de tokens ---------------------------------------------- */
:root {
  /* Color corporativo */
  --brand:          #3999d5;        /* azul corporativo · brand book */
  --brand-dark:     #2a86c1;        /* hover / estados */
  --brand-darker:   #1f6da0;        /* texto sobre fondos claros */
  --brand-deep:     #0e3958;        /* footer / contraste */
  --brand-soft:     rgba(57,153,213,0.10);
  --brand-glow:     rgba(57,153,213,0.22);
  --accent-green:   #5ec161;        /* derivado del gradiente del logo */
  --gradient:       linear-gradient(90deg, #3999d5 0%, #5ec161 100%);

  /* Neutros */
  --bg:             #ffffff;
  --bg-elev:        #f5f8fb;
  --surface:        #ffffff;
  --surface-2:      #eef3f8;
  --border:         #e2e8ef;
  --border-strong:  #cdd7e1;
  --text:           #0a1f3a;        /* azul oscuro · casi negro */
  --text-2:         #3d4a5d;
  --text-muted:     #6b7a8e;

  /* Tipografía */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-brand: "Quicksand", "Nunito", -apple-system, system-ui, sans-serif;

  /* Tamaños fluidos */
  --fs-xs:   0.8125rem;
  --fs-sm:   0.9375rem;
  --fs-base: 1rem;
  --fs-md:   1.125rem;
  --fs-lg:   clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  --fs-xl:   clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  --fs-2xl:  clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --fs-3xl:  clamp(2.5rem, 1.8rem + 3.5vw, 4.25rem);
  --fs-hero: clamp(2rem, 1.4rem + 3vw, 5rem);

  /* Espaciado */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Otros */
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --max-w:     1200px;
  --shadow-sm: 0 1px 2px rgba(15, 31, 58, 0.04);
  --shadow:    0 8px 24px -10px rgba(15, 31, 58, 0.10);
  --shadow-lg: 0 30px 60px -20px rgba(15, 31, 58, 0.18);
  --t-fast: 160ms cubic-bezier(.2,.7,.3,1);
  --t-base: 280ms cubic-bezier(.2,.7,.3,1);
}

/* Base ------------------------------------------------------------ */
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: hidden;
}

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

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Wordmark — logo "drtel" con gradiente corporativo --------------- */
.wordmark {
  display: inline-block;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 1.625rem;
  line-height: 1;
  letter-spacing: -0.015em;
  background: var(--gradient);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  /* Selector más oscuro: la "d" más azul, la "L" más verde */
}
.wordmark--small { font-size: 1.25rem; }
.wordmark--large { font-size: 2.5rem; }

/* Variantes monocromáticas (footer, hero invertido, etc.) */
.wordmark--white {
  background: none;
  -webkit-background-clip: initial;
          background-clip: initial;
  color: #ffffff;
}
.wordmark--brand {
  background: none;
  -webkit-background-clip: initial;
          background-clip: initial;
  color: var(--brand);
}

/* Tipografía ------------------------------------------------------ */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
}

h1 { font-size: var(--fs-hero); font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: var(--fs-3xl); letter-spacing: -0.03em; }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { color: var(--text-2); max-width: 65ch; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--brand-darker);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--brand);
  border-radius: 1px;
}

/* Layout ---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section {
  padding-block: clamp(var(--space-8), 6vw, var(--space-10));
  position: relative;
}

.section--tight { padding-block: clamp(var(--space-7), 4vw, var(--space-8)); }

.section--alt { background: var(--bg-elev); }

.section-header {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-7);
  max-width: 760px;
}
.section-header p { font-size: var(--fs-md); color: var(--text-2); }

/* Skip link ------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand);
  color: #fff;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 1000;
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

/* Header ---------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding-block: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav__list {
  display: flex;
  gap: var(--space-6);
}
.nav__link {
  font-size: var(--fs-sm);
  color: var(--text-2);
  transition: color var(--t-fast);
  position: relative;
  font-weight: 500;
}
.nav__link:hover,
.nav__link[aria-current="page"] { color: var(--brand-darker); }
.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -22px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
}

.nav__cta {
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--brand);
  border-radius: var(--radius);
  color: var(--brand);
  background: transparent;
  transition: background var(--t-fast), color var(--t-fast);
}
.nav__cta:hover { background: var(--brand); color: #fff; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  position: relative;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  transition: transform var(--t-fast);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after  { top:  6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { transform: translateY(-6px) rotate(-45deg); }

/* Hero ------------------------------------------------------------ */
.hero {
  position: relative;
  padding-block: clamp(var(--space-6), 8vw, calc(var(--space-10) + var(--space-6)));
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(ellipse 80% 50% at 80% 0%, var(--brand-soft), transparent 70%),
    radial-gradient(ellipse 60% 40% at 0% 100%, rgba(94,193,97,0.08), transparent 70%),
    var(--bg);
}
.hero__grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(15, 31, 58, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 31, 58, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
}
.hero__glow { display: none; }

.hero h1 {
  max-width: 22ch;
}
.hero h1 .accent {
  background: var(--gradient);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.hero__lead {
  margin-top: var(--space-4);
  font-size: var(--fs-md);
  color: var(--text-2);
  max-width: 60ch;
}

.hero__actions {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__strap {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero__strap span { display: inline-flex; align-items: center; gap: var(--space-2); }
.hero__strap span::before {
  content: "";
  width: 7px; height: 7px;
  background: var(--brand);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--brand-soft);
}

/* Botones --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: var(--fs-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
}
.btn--primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 10px 24px -10px var(--brand-glow);
}
.btn--primary:hover {
  background: var(--brand-dark);
  transform: translateY(-1px);
  box-shadow: 0 14px 30px -10px var(--brand-glow);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn--ghost:hover { border-color: var(--brand); color: var(--brand-darker); background: var(--brand-soft); }
.btn svg { width: 16px; height: 16px; }

/* Logos / clientes ----------------------------------------------- */
.clients {
  padding-block: var(--space-6);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.clients__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.clients__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-7);
  align-items: center;
}
.clients__row span {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--text);
  letter-spacing: 0.05em;
}

/* Capacidades / Grid ---------------------------------------------- */
.cap-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--brand-soft), transparent 60%);
  opacity: 0;
  transition: opacity var(--t-base);
  pointer-events: none;
}
.card:hover {
  border-color: var(--brand);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.card:hover::after { opacity: 1; }

.card__icon {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  border-radius: var(--radius);
  margin-bottom: var(--space-4);
  color: var(--brand-darker);
}
.card__icon svg { width: 22px; height: 22px; }

.card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
}
.card p {
  font-size: var(--fs-sm);
  color: var(--text-2);
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-size: var(--fs-sm);
  font-family: var(--font-mono);
  color: var(--brand);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 500;
}
.card__link:hover { color: var(--brand-dark); }
.card__link svg { width: 14px; height: 14px; transition: transform var(--t-fast); }
.card__link:hover svg { transform: translateX(3px); }

/* Two-col split --------------------------------------------------- */
.split {
  display: grid;
  gap: var(--space-7);
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 900px) {
  .split { grid-template-columns: 1.1fr 1fr; gap: var(--space-9); }
}

.split p { font-size: var(--fs-md); }

/* Lista bullets técnica ------------------------------------------ */
.feat-list {
  display: grid;
  gap: var(--space-4);
}
.feat-list li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: var(--space-4);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--border);
  font-size: var(--fs-sm);
  color: var(--text-2);
}
.feat-list li::before {
  content: "";
  width: 16px; height: 16px;
  margin-top: 6px;
  background: var(--brand);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center / contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center / contain no-repeat;
}
.feat-list li strong { color: var(--text); font-weight: 600; display: block; margin-bottom: 2px; }

/* Stat block ------------------------------------------------------ */
.stats {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
}
.stat__num {
  font-size: clamp(1.75rem, 1.2rem + 2.2vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  display: block;
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.stat__lbl {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Regiones -------------------------------------------------------- */
.regions {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.regions li {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: var(--fs-sm);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: border-color var(--t-fast), background var(--t-fast);
}
.regions li:hover { border-color: var(--brand); background: var(--brand-soft); }
.regions li::before {
  content: "";
  width: 8px; height: 8px;
  background: var(--brand);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--brand-soft);
  flex-shrink: 0;
}

/* Bloque proceso / etapas ---------------------------------------- */
.steps {
  display: grid;
  gap: var(--space-4);
  counter-reset: step;
}
@media (min-width: 800px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
}
.step {
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  counter-increment: step;
  position: relative;
}
.step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--brand);
  letter-spacing: 0.05em;
  font-weight: 600;
}
.step h4 {
  font-size: var(--fs-md);
  margin-block: var(--space-2);
}
.step p { font-size: var(--fs-sm); }

/* Tablas técnicas ------------------------------------------------- */
.tech-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: var(--fs-sm);
  background: var(--surface);
}
.tech-table caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: var(--space-3) 0;
}
.tech-table th,
.tech-table td {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
}
.tech-table th {
  background: var(--bg-elev);
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
}
.tech-table td { color: var(--text-2); }
.tech-table tr:last-child td { border-bottom: 0; }
.tech-table tbody tr:hover { background: var(--bg-elev); }
@media (max-width: 700px) {
  /* En móvil: permitimos scroll horizontal interno si el contenido no cabe,
     evitando que la tabla se salga del viewport o se trunque. */
  .tech-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }
  .tech-table caption { white-space: normal; }
  .tech-table th,
  .tech-table td { white-space: normal; }
}

/* CTA banda final ------------------------------------------------- */
.cta {
  position: relative;
  background: var(--brand);
  color: #fff;
  padding-block: var(--space-9);
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 10% 50%, rgba(94,193,97,0.20), transparent 60%),
    radial-gradient(ellipse 50% 70% at 100% 0%, rgba(255,255,255,0.12), transparent 60%);
  pointer-events: none;
}
.cta__inner {
  display: grid;
  gap: var(--space-5);
  align-items: end;
  grid-template-columns: 1fr;
  position: relative;
}
@media (min-width: 800px) {
  .cta__inner { grid-template-columns: 1.4fr 1fr; }
  .cta__actions { justify-self: end; }
}
.cta h2 { max-width: 18ch; color: #fff; }
.cta p { font-size: var(--fs-md); margin-top: var(--space-4); color: rgba(255,255,255,0.88); }
.cta .eyebrow { color: rgba(255,255,255,0.85); }
.cta .eyebrow::before { background: #fff; }
.cta__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.cta .btn--primary {
  background: #ffffff;
  color: var(--brand-darker);
  box-shadow: 0 10px 24px -10px rgba(0,0,0,0.20);
}
.cta .btn--primary:hover { background: #f5f8fb; color: var(--brand-deep); }
.cta .btn--ghost { color: #fff; border-color: rgba(255,255,255,0.45); }
.cta .btn--ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; color: #fff; }

/* Footer ---------------------------------------------------------- */
.site-footer {
  background: var(--brand-deep);
  color: rgba(255,255,255,0.78);
  padding-block: var(--space-7) var(--space-5);
}
.footer__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}
@media (min-width: 800px) {
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.footer__brand p {
  font-size: var(--fs-sm);
  margin-top: var(--space-3);
  max-width: 36ch;
  color: rgba(255,255,255,0.65);
}
.footer h5 {
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.50);
  margin-bottom: var(--space-3);
  font-weight: 500;
}
.footer ul { display: grid; gap: var(--space-2); }
.footer a {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.85);
  transition: color var(--t-fast);
}
.footer a:hover { color: #fff; }
.footer li:not(:has(a)) { font-size: var(--fs-sm); color: rgba(255,255,255,0.65); }
.footer__bottom {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.10);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.55);
}

/* Page header (subpáginas) ---------------------------------------- */
.page-head {
  padding-block: clamp(var(--space-8), 6vw, var(--space-9));
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse 80% 60% at 100% 100%, var(--brand-soft), transparent 60%),
    var(--bg-elev);
}
.page-head h1 { font-size: clamp(1.625rem, 1.2rem + 2.5vw, 3.5rem); max-width: 24ch; }
.page-head p { margin-top: var(--space-4); font-size: var(--fs-md); max-width: 58ch; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: var(--space-5);
}
.breadcrumb a { color: var(--text-muted); transition: color var(--t-fast); }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb span[aria-hidden="true"] { color: var(--border-strong); }

/* Formulario contacto -------------------------------------------- */
.form {
  display: grid;
  gap: var(--space-4);
}
.form__row {
  display: grid;
  gap: var(--space-4);
}
@media (min-width: 700px) {
  .form__row--2 { grid-template-columns: 1fr 1fr; }
}
.form label {
  display: block;
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}
.form input,
.form textarea,
.form select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  color: var(--text);
  font-size: 1rem; /* 16px · evita el zoom-in involuntario de iOS Safari al focus */
  transition: border-color var(--t-fast), background var(--t-fast), box-shadow var(--t-fast);
}
@media (min-width: 700px) {
  .form input,
  .form textarea,
  .form select { font-size: var(--fs-sm); }
}
.form input:focus,
.form textarea:focus,
.form select:focus {
  border-color: var(--brand);
  outline: none;
  box-shadow: 0 0 0 4px var(--brand-soft);
}
.form textarea { resize: vertical; min-height: 140px; }

.contact-meta {
  display: grid;
  gap: var(--space-4);
}
.contact-meta dt {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}
.contact-meta dd { color: var(--text); font-size: var(--fs-sm); }
.contact-meta dd a { color: var(--brand-darker); }
.contact-meta dd a:hover { color: var(--brand); }

/* Animaciones (revelar al hacer scroll) -------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* Footer · sub-row legal ----------------------------------------- */
.footer__legal {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.10);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  font-size: var(--fs-xs);
}
.footer__legal a {
  color: rgba(255,255,255,0.78);
  transition: color var(--t-fast);
}
.footer__legal a:hover { color: #fff; }
.footer__legal button {
  background: none;
  border: 0;
  padding: 8px 0;
  min-height: 44px;
  cursor: pointer;
  color: rgba(255,255,255,0.78);
  font-size: var(--fs-xs);
  font-family: inherit;
  display: inline-flex;
  align-items: center;
}
.footer__legal button:hover { color: #fff; }

/* Cookie banner --------------------------------------------------- */
.cookie-banner {
  position: fixed;
  left: var(--space-3);
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 100;
  background: #ffffff;
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-4);
  display: none;
  max-width: 720px;
  margin-inline: auto;
  max-height: 80vh;
  overflow-y: auto;
}
.cookie-banner[data-open="true"] { display: block; }
.cookie-banner h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--space-2);
}
.cookie-banner p {
  font-size: var(--fs-sm);
  color: var(--text-2);
  margin-bottom: var(--space-4);
}
.cookie-banner p a { color: var(--brand-darker); text-decoration: underline; }
.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.cookie-banner .btn {
  padding: 0.75rem 1rem;
  font-size: var(--fs-sm);
  min-height: 44px;
}

/* Form · consent + nuevos campos --------------------------------- */
.form__consent {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--bg-elev);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.form__consent input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--brand);
  cursor: pointer;
}
.form__consent label {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-2);
  line-height: 1.5;
  cursor: pointer;
}
.form__consent label a { color: var(--brand-darker); text-decoration: underline; }
.form__consent label a:hover { color: var(--brand); }
.form__legal-notice {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: var(--space-3);
}
.form__legal-notice a { color: var(--brand-darker); text-decoration: underline; }

/* Capacidad operativa · grid icónico ----------------------------- */
.ops-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.ops-card {
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: grid;
  gap: var(--space-3);
  transition: border-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
}
.ops-card:hover { border-color: var(--brand); transform: translateY(-2px); box-shadow: var(--shadow); }
.ops-card__num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--brand);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}
.ops-card h3 { font-size: var(--fs-md); }
.ops-card p { font-size: var(--fs-sm); }
.ops-card ul {
  margin-top: var(--space-2);
  display: grid;
  gap: var(--space-2);
}
.ops-card ul li {
  font-size: var(--fs-sm);
  color: var(--text-2);
  padding-left: 16px;
  position: relative;
}
.ops-card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  background: var(--brand);
  border-radius: 50%;
}

/* Galería · fotos reales / placeholders -------------------------- */
.gallery {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.gallery__item {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--space-4);
}
.gallery__item img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery__placeholder {
  display: grid;
  gap: var(--space-2);
  color: var(--text-muted);
}
.gallery__placeholder svg {
  width: 32px;
  height: 32px;
  margin-inline: auto;
  color: var(--brand);
  opacity: 0.7;
}
.gallery__placeholder span {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.gallery__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(0deg, rgba(10,31,58,0.85), transparent);
  color: #fff;
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Casos de éxito · proyectos ------------------------------------- */
.cases {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.case {
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: grid;
  gap: var(--space-3);
}
.case__tag {
  display: inline-flex;
  align-self: start;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--brand-darker);
  background: var(--brand-soft);
  border-radius: 99px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.case h3 { font-size: var(--fs-md); }
.case p { font-size: var(--fs-sm); }
.case__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--border-strong);
}
.case__metric { display: grid; gap: 2px; }
.case__metric strong {
  font-size: var(--fs-md);
  color: var(--brand-darker);
  font-weight: 700;
}
.case__metric span {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* CTA múltiple en hero ------------------------------------------- */
.hero__ctas {
  margin-top: var(--space-5);
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  max-width: 760px;
}
.hero__cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  color: var(--text);
  transition: border-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
}
.hero__cta:hover {
  border-color: var(--brand);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  color: var(--brand-darker);
}
.hero__cta svg {
  width: 18px;
  height: 18px;
  color: var(--brand);
  flex-shrink: 0;
}

/* Página legal · contenido tipográfico --------------------------- */
.legal {
  max-width: 760px;
  margin-inline: auto;
}
.legal h2 {
  font-size: var(--fs-xl);
  margin-top: var(--space-7);
  margin-bottom: var(--space-3);
}
.legal h2:first-of-type { margin-top: var(--space-5); }
.legal h3 {
  font-size: var(--fs-md);
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
}
.legal p,
.legal li {
  font-size: var(--fs-sm);
  color: var(--text-2);
  margin-bottom: var(--space-3);
  max-width: none;
}
.legal ul, .legal ol {
  padding-left: var(--space-5);
  margin-bottom: var(--space-4);
}
.legal ul li { list-style: disc; }
.legal ol li { list-style: decimal; }
.legal table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: var(--fs-sm);
  margin-block: var(--space-4);
}
.legal th, .legal td {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
}
.legal th { background: var(--bg-elev); font-weight: 600; }
.legal td { color: var(--text-2); }
.legal a { color: var(--brand-darker); text-decoration: underline; }
.legal__updated {
  display: inline-block;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 99px;
  color: var(--text-muted);
  margin-bottom: var(--space-5);
}

/* Differenciación marcas Grupo Avanza ---------------------------- */
.brand-split {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 800px) {
  .brand-split { grid-template-columns: 1fr 1fr; }
}
.brand-split__card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  display: grid;
  gap: var(--space-3);
}
.brand-split__card--accent {
  background: linear-gradient(135deg, var(--brand-soft), transparent 70%);
  border-color: var(--brand);
}
.brand-split__card h3 { font-size: var(--fs-lg); }
.brand-split__card p { font-size: var(--fs-sm); }
.brand-split__card ul { display: grid; gap: var(--space-2); margin-top: var(--space-2); }
.brand-split__card ul li {
  font-size: var(--fs-sm);
  color: var(--text-2);
  padding-left: 16px;
  position: relative;
}
.brand-split__card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  background: var(--brand);
  border-radius: 50%;
}
.brand-split__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

/* Responsive nav -------------------------------------------------- */
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed;
    inset: 60px 0 auto 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-5);
    max-height: calc(100dvh - 60px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translateY(-110%);
    transition: transform var(--t-base);
  }
  .nav[data-open="true"] { transform: translateY(0); }
  .nav__list {
    flex-direction: column;
    gap: 0;
  }
  .nav__list li {
    border-bottom: 1px solid var(--border);
  }
  .nav__link {
    display: block;
    padding-block: var(--space-3);
  }
  .nav__link[aria-current="page"]::after { display: none; }
  .nav__cta {
    margin-top: var(--space-4);
    text-align: center;
  }
}

/* ---------------------------------------------------------------- */
/*  Ajustes finos para móvil pequeño (≤ 600 px)                     */
/* ---------------------------------------------------------------- */
@media (max-width: 600px) {
  /* CTAs principales del hero ocupan todo el ancho en stack */
  .hero__actions .btn,
  .cta__actions .btn { flex: 1 1 100%; justify-content: center; }

  /* Cookie banner aún más compacto, botones repartidos */
  .cookie-banner { padding: var(--space-3); }
  .cookie-banner h3 { font-size: var(--fs-sm); }
  .cookie-banner p { font-size: var(--fs-xs); margin-bottom: var(--space-3); }
  .cookie-banner__actions .btn { flex: 1 1 auto; }
}