/* ==========================================================================
   QBSoft — Hoja de estilos premium
   Paleta QBSoft Premium · Fraunces + Geist + JetBrains Mono
   ========================================================================== */

/* ---------- Tokens ------------------------------------------------------- */
:root {
  /* Marca */
  --c-primary:        #1E4D7B;   /* Azul Egeo */
  --c-primary-dark:   #0F2D4A;   /* Noche Egea */
  --c-primary-deep:   #081B30;   /* Profundo (derivado para aún más drama) */
  --c-secondary:      #6B7280;   /* Piedra */
  --c-accent:         #D4A84B;   /* Oro Olímpico */
  --c-accent-soft:    #E8C977;   /* Oro suave (hover) */

  /* Superficies */
  --c-bg:             #E8E6E2;   /* Mármol suave */
  --c-bg-alt:         #E2DFD9;   /* Mármol cálido */
  --c-surface:        #FFFFFF;
  --c-surface-tint:   #FAF8F4;

  /* Texto */
  --c-text:           #0F2D4A;   /* Noche Egea */
  --c-text-2:         #4B5563;   /* Gris Ejecutivo */
  --c-text-3:         #6B7280;   /* Piedra */
  --c-text-on-dark:   #E8E3D6;
  --c-text-on-dark-2: #A9B3C2;

  /* Semánticos */
  --c-success:        #4A5D23;
  --c-warning:        #D97706;
  --c-error:          #B91C1C;
  --c-info:           #3B82A0;
  --c-muted:          #E5E7EB;
  --c-divider:        #DDD6C7;
  --c-divider-dark:   #1B3A5F;

  /* Tipografía */
  --f-display:  'Fraunces', 'Playfair Display', Georgia, serif;
  --f-body:     'Geist', 'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --f-mono:     'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* Layout */
  --container:  1240px;
  --container-narrow: 920px;
  --radius-sm:  4px;
  --radius:     8px;
  --radius-lg:  16px;

  /* Sombras Egeo (azul, no neutral) */
  --shadow-sm:  0 1px 2px rgba(15, 45, 74, 0.06);
  --shadow:     0 4px 16px -4px rgba(15, 45, 74, 0.10), 0 2px 4px rgba(15, 45, 74, 0.04);
  --shadow-lg:  0 24px 48px -12px rgba(15, 45, 74, 0.18), 0 8px 16px -8px rgba(15, 45, 74, 0.08);
  --shadow-xl:  0 40px 80px -20px rgba(15, 45, 74, 0.25);
  --shadow-gold: 0 12px 32px -12px rgba(212, 168, 75, 0.45);

  /* Transiciones */
  --ease:       cubic-bezier(.2, .7, .2, 1);
  --t-fast:     180ms var(--ease);
  --t-med:      320ms var(--ease);
  --t-slow:     560ms var(--ease);
}

/* ---------- Reset / base ------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'ss01', 'ss02', 'cv11';
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--c-primary-dark); }

button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }

::selection { background: var(--c-accent); color: var(--c-primary-dark); }

/* ---------- Tipografía -------------------------------------------------- */
h1, h2, h3, h4, h5 {
  font-family: var(--f-display);
  font-weight: 500;
  font-variation-settings: 'opsz' 144, 'SOFT' 0;
  color: var(--c-text);
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.6rem); font-weight: 400; }
h2 { font-size: clamp(2rem, 4.5vw, 3.4rem); font-weight: 400; }
h3 { font-size: clamp(1.4rem, 2.4vw, 1.85rem); font-weight: 500; }
h4 { font-size: 1.2rem; font-weight: 600; font-family: var(--f-body); letter-spacing: -0.01em; }

p { margin: 0 0 1em; }
.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  color: var(--c-text-2);
  line-height: 1.55;
  max-width: 60ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-primary);
}
.eyebrow::before {
  content: '';
  width: 28px; height: 1px;
  background: var(--c-accent);
}

.italic-accent {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 400;
  color: var(--c-primary);
}
.gold {
  color: var(--c-accent);
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 400;
}

/* ---------- Layout helpers ---------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
.container--narrow { max-width: var(--container-narrow); }

section { padding: 96px 0; }
@media (max-width: 768px) { section { padding: 64px 0; } }

.section-head {
  max-width: 720px;
  margin-bottom: 64px;
}

/* ---------- Header / nav (DARK, matching logo aesthetic) ---------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 27, 48, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.header.is-scrolled {
  border-bottom-color: rgba(212, 168, 75, 0.18);
  background: rgba(8, 27, 48, 0.98);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 1.5rem;
  color: var(--c-text-on-dark);
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand:hover { opacity: 0.85; }
.brand__text {
  font-family: var(--f-display);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--c-text-on-dark);
}
.brand__qb {
  color: var(--c-accent);
  font-weight: 600;
}
.brand__logo {
  height: 48px;
  width: auto;
  display: block;
}

.nav { display: flex; align-items: center; gap: 36px; }
.nav__list {
  display: flex; gap: 32px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--c-text-on-dark-2);
  position: relative;
  padding: 6px 0;
  text-decoration: none;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--c-accent);
  transition: width var(--t-med);
}
.nav__link:hover { color: var(--c-text-on-dark); }
.nav__link:hover::after { width: 100%; }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--c-accent);
  color: var(--c-primary-deep);
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  border: 1px solid var(--c-accent);
  transition: all var(--t-med);
  text-decoration: none;
}
.nav__cta:hover {
  background: var(--c-accent-soft);
  color: var(--c-primary-deep);
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold);
}

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: 6px;
  align-items: center; justify-content: center;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: '';
  display: block;
  width: 22px; height: 2px;
  background: var(--c-text-on-dark);
  margin: 3px 0;
  transition: transform var(--t-fast), opacity var(--t-fast);
}

@media (max-width: 960px) {
  .nav__list, .nav__cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .header.nav-open .nav__list,
  .header.nav-open .nav__cta {
    display: flex;
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--c-primary-deep);
    border-bottom: 1px solid rgba(212, 168, 75, 0.18);
    padding: 24px 32px;
    box-shadow: var(--shadow-lg);
  }
  .header.nav-open .nav__list { flex-direction: column; gap: 18px; padding-bottom: 12px; }
  .header.nav-open .nav__cta { top: auto; margin-top: 240px; align-self: flex-start; margin-left: 32px; margin-bottom: 24px; display: inline-flex; position: absolute; }
}

/* ---------- Buttons ------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 500;
  font-family: var(--f-body);
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: all var(--t-med);
  white-space: nowrap;
  cursor: pointer;
}
.btn--primary {
  background: var(--c-primary-dark);
  color: var(--c-bg);
  border-color: var(--c-primary-dark);
}
.btn--primary:hover {
  background: var(--c-primary);
  color: var(--c-bg);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.btn--gold {
  background: var(--c-accent);
  color: var(--c-primary-dark);
  border-color: var(--c-accent);
  font-weight: 600;
}
.btn--gold:hover {
  background: var(--c-accent-soft);
  color: var(--c-primary-dark);
  box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}
.btn--ghost {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-divider);
}
.btn--ghost:hover {
  border-color: var(--c-text);
  background: var(--c-surface);
}
.btn--ghost-light {
  background: transparent;
  color: var(--c-text-on-dark);
  border-color: rgba(232, 227, 214, 0.25);
}
.btn--ghost-light:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}
.btn__arrow {
  width: 18px; height: 18px;
  transition: transform var(--t-med);
}
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ---------- HERO --------------------------------------------------------- */
.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 85% 0%, rgba(30, 77, 123, 0.10), transparent 60%),
    radial-gradient(900px 500px at 5% 100%, rgba(212, 168, 75, 0.08), transparent 70%),
    var(--c-bg);
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--c-divider) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-divider) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.30;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 70%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}
@media (max-width: 1024px) {
  .hero { padding: 80px 0 60px; }
  .hero__grid { grid-template-columns: 1fr; gap: 64px; }
}

.hero__pre {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-divider);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--c-text-2);
  margin-bottom: 32px;
}
.hero__pre__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-success);
  position: relative;
}
.hero__pre__dot::after {
  content: '';
  position: absolute; inset: -4px;
  border-radius: 50%;
  background: var(--c-success);
  opacity: 0.3;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.6); opacity: 0; }
}

.hero h1 {
  margin-bottom: 32px;
}
.hero__sub {
  font-size: clamp(1.1rem, 1.5vw, 1.25rem);
  color: var(--c-text-2);
  max-width: 540px;
  margin-bottom: 40px;
  line-height: 1.55;
}

.hero__cta-row {
  display: flex;
  gap: 16px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}
.hero__meta {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--c-divider);
}
.hero__meta__item {
  display: flex;
  flex-direction: column;
}
.hero__meta__num {
  font-family: var(--f-display);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--c-primary-dark);
  line-height: 1;
  letter-spacing: -0.02em;
}
.hero__meta__num sup {
  font-size: 1rem;
  color: var(--c-accent);
  vertical-align: super;
  margin-left: 2px;
}
.hero__meta__label {
  margin-top: 8px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-text-3);
}

.hero__visual {
  position: relative;
}
.hero__visual::before {
  content: '';
  position: absolute;
  inset: -40px -20px -40px -40px;
  background:
    radial-gradient(60% 60% at 50% 50%, rgba(30, 77, 123, 0.12), transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  z-index: -1;
}
.hero__mockup {
  width: 100%;
  filter: drop-shadow(0 30px 50px rgba(15, 45, 74, 0.25));
}

@media (max-width: 640px) {
  .hero__meta { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .hero__meta__num { font-size: 1.8rem; }
}

/* ---------- Trust strip -------------------------------------------------- */
.trust {
  background: var(--c-primary-dark);
  color: var(--c-text-on-dark);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.trust::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(800px 200px at 80% 50%, rgba(212, 168, 75, 0.06), transparent 70%),
    radial-gradient(600px 200px at 10% 50%, rgba(59, 130, 160, 0.10), transparent 70%);
  pointer-events: none;
}
.trust__inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) 2fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 880px) { .trust__inner { grid-template-columns: 1fr; gap: 32px; } }

.trust__label {
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
  font-weight: 500;
}
.trust__sub {
  margin-top: 6px;
  font-family: var(--f-display);
  font-size: 1.4rem;
  font-style: italic;
  color: var(--c-text-on-dark);
  line-height: 1.3;
}

.trust__industries {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 16px;
  align-items: center;
}
@media (max-width: 1024px) { .trust__industries { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 600px) { .trust__industries { grid-template-columns: repeat(2, 1fr); } }

.trust__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  padding: 12px 8px;
  border-radius: 8px;
  transition: background var(--t-med);
}
.trust__item:hover { background: rgba(212, 168, 75, 0.08); }
.trust__item svg {
  width: 32px; height: 32px;
  color: var(--c-accent);
  opacity: 0.85;
}
.trust__item span {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--c-text-on-dark-2);
}

/* ---------- The Problem section ----------------------------------------- */
.problem {
  background: var(--c-bg);
  position: relative;
}
.problem__head {
  max-width: 880px;
}
.problem__title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 24px;
}
.problem__title em {
  font-style: italic;
  color: var(--c-primary);
}
.problem__intro {
  color: var(--c-text-2);
  font-size: 1.1rem;
  max-width: 60ch;
  margin-bottom: 56px;
}
.problem__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--c-divider);
}
.problem__item {
  padding: 32px 32px 32px 0;
  border-bottom: 1px solid var(--c-divider);
  border-right: 1px solid var(--c-divider);
  display: flex;
  gap: 24px;
}
.problem__item:nth-child(2n) {
  padding-right: 0;
  padding-left: 32px;
  border-right: 0;
}
.problem__item:nth-last-child(-n+2) { border-bottom: 0; }
@media (max-width: 720px) {
  .problem__grid { grid-template-columns: 1fr; }
  .problem__item, .problem__item:nth-child(2n) {
    padding: 24px 0; border-right: 0; border-left: 0;
  }
  .problem__item:last-child { border-bottom: 0; }
}
.problem__num {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--c-accent);
  letter-spacing: 0.1em;
  font-weight: 500;
  flex-shrink: 0;
  padding-top: 4px;
  min-width: 36px;
}
.problem__body h4 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 1.3rem;
  margin-bottom: 8px;
  color: var(--c-text);
}
.problem__body p {
  color: var(--c-text-2);
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.55;
}

.problem__pivot {
  margin-top: 64px;
  padding: 48px 56px;
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary-deep) 100%);
  color: var(--c-text-on-dark);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
}
.problem__pivot::before {
  content: '';
  position: absolute;
  top: -50%; right: -10%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(212, 168, 75, 0.15), transparent 70%);
  pointer-events: none;
}
.problem__pivot__text {
  font-family: var(--f-display);
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  line-height: 1.3;
  margin: 0;
  flex: 1;
}
.problem__pivot__text .gold {
  color: var(--c-accent);
}
@media (max-width: 720px) {
  .problem__pivot { flex-direction: column; align-items: flex-start; padding: 32px; }
}

/* ---------- Capabilities / services ------------------------------------- */
.capabilities {
  background: var(--c-surface);
  border-top: 1px solid var(--c-divider);
  border-bottom: 1px solid var(--c-divider);
}
.cap__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--c-divider);
  border-left: 1px solid var(--c-divider);
}
.cap__card {
  padding: 40px 32px;
  border-right: 1px solid var(--c-divider);
  border-bottom: 1px solid var(--c-divider);
  background: var(--c-surface);
  transition: background var(--t-med);
  position: relative;
}
.cap__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-med);
}
.cap__card:hover { background: var(--c-surface-tint); }
.cap__card:hover::before { transform: scaleX(1); }

.cap__icon {
  width: 44px; height: 44px;
  border-radius: 8px;
  background: var(--c-bg-alt);
  color: var(--c-primary);
  display: grid; place-items: center;
  margin-bottom: 24px;
  border: 1px solid var(--c-divider);
}
.cap__icon svg { width: 22px; height: 22px; }
.cap__num {
  position: absolute;
  top: 32px; right: 32px;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--c-text-3);
  letter-spacing: 0.1em;
}
.cap__card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--c-text);
}
.cap__card p {
  color: var(--c-text-2);
  font-size: 0.94rem;
  margin-bottom: 16px;
  line-height: 1.55;
}
.cap__chips {
  display: flex; flex-wrap: wrap; gap: 6px;
  font-family: var(--f-mono);
  font-size: 0.74rem;
}
.cap__chip {
  padding: 3px 9px;
  background: var(--c-bg);
  color: var(--c-text-2);
  border-radius: 4px;
  border: 1px solid var(--c-divider);
}

@media (max-width: 1024px) { .cap__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .cap__grid { grid-template-columns: 1fr; } }

/* ---------- Tech stack -------------------------------------------------- */
.stack {
  background: var(--c-bg);
}
.stack__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border-top: 1px solid var(--c-divider);
  border-left: 1px solid var(--c-divider);
}
.stack__group {
  padding: 28px 24px;
  border-right: 1px solid var(--c-divider);
  border-bottom: 1px solid var(--c-divider);
  background: var(--c-surface);
}
.stack__group__label {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-accent);
  margin-bottom: 16px;
  font-weight: 500;
}
.stack__group__items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stack__group__item {
  font-size: 0.92rem;
  color: var(--c-text);
  font-weight: 500;
}
@media (max-width: 1024px) { .stack__grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 540px) { .stack__grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Case studies ------------------------------------------------ */
.cases {
  background: var(--c-surface);
}
.case {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
  padding: 80px 0;
  border-top: 1px solid var(--c-divider);
}
.case:last-child { border-bottom: 1px solid var(--c-divider); }
.case--reverse { grid-template-columns: 1.1fr 1fr; }
.case--reverse .case__content { order: 2; }
.case--reverse .case__visual { order: 1; }

@media (max-width: 1024px) {
  .case, .case--reverse { grid-template-columns: 1fr; gap: 48px; padding: 56px 0; }
  .case--reverse .case__content { order: 1; }
  .case--reverse .case__visual { order: 2; }
}

.case__meta {
  display: flex;
  gap: 16px;
  align-items: center;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-text-3);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.case__meta__industry {
  color: var(--c-primary);
  font-weight: 600;
}
.case__meta__sep {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--c-accent);
}
.case h3 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 400;
  margin-bottom: 8px;
}
.case__tagline {
  color: var(--c-text-2);
  font-style: italic;
  font-family: var(--f-display);
  font-size: 1.15rem;
  margin-bottom: 28px;
  font-weight: 300;
}

.case__sections {
  display: flex; flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}
.case__section {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
}
.case__section__label {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  font-weight: 500;
  padding-top: 4px;
}
.case__section__body {
  color: var(--c-text-2);
  font-size: 0.96rem;
  line-height: 1.6;
}
.case__section__body strong { color: var(--c-text); font-weight: 600; }

.case__stack {
  display: flex; flex-wrap: wrap; gap: 6px;
  font-family: var(--f-mono);
  font-size: 0.72rem;
}
.case__stack__chip {
  padding: 4px 10px;
  background: var(--c-bg);
  color: var(--c-text-2);
  border: 1px solid var(--c-divider);
  border-radius: 999px;
}

.case__visual {
  position: relative;
}
.case__visual__frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--c-bg-alt);
}
.case__visual__frame img,
.case__visual__frame svg { display: block; width: 100%; height: auto; }
.case__visual__tag {
  position: absolute;
  top: 16px; right: 16px;
  padding: 6px 12px;
  background: var(--c-primary-dark);
  color: var(--c-accent);
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  border-radius: 4px;
  z-index: 2;
}

/* ---------- IT/OT diagram section --------------------------------------- */
.itot {
  background: var(--c-primary-deep);
  color: var(--c-text-on-dark);
  position: relative;
  overflow: hidden;
}
.itot::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 500px at 100% 0%, rgba(30, 77, 123, 0.5), transparent 60%),
    radial-gradient(700px 400px at 0% 100%, rgba(212, 168, 75, 0.06), transparent 60%);
  pointer-events: none;
}
.itot::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.itot .container { position: relative; z-index: 1; }
.itot .eyebrow { color: var(--c-accent); }
.itot .eyebrow::before { background: var(--c-accent); }
.itot h2 { color: var(--c-text-on-dark); }
.itot h2 em { color: var(--c-accent); font-style: italic; }

.itot__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 1024px) { .itot__grid { grid-template-columns: 1fr; gap: 48px; } }

.itot__intro p {
  color: var(--c-text-on-dark-2);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.itot__layers {
  display: flex; flex-direction: column;
  gap: 12px; margin-top: 32px;
}
.itot__layer {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--f-mono);
  font-size: 0.86rem;
  color: var(--c-text-on-dark);
}
.itot__layer__num {
  width: 28px; height: 28px;
  border-radius: 4px;
  background: rgba(212, 168, 75, 0.12);
  border: 1px solid rgba(212, 168, 75, 0.3);
  display: grid; place-items: center;
  color: var(--c-accent);
  font-size: 0.78rem;
}

.itot__diagram {
  width: 100%;
}

/* ---------- Code section ------------------------------------------------ */
.code {
  background: var(--c-bg);
}
.code__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 1024px) { .code__grid { grid-template-columns: 1fr; gap: 32px; } }

.code__intro h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
.code__intro p { color: var(--c-text-2); font-size: 1.05rem; }

.code__window {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #0B2138;
  border: 1px solid #16385C;
  font-family: var(--f-mono);
}
.code__window__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: #081B30;
  border-bottom: 1px solid #16385C;
}
.code__dots { display: flex; gap: 7px; }
.code__dots span {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: #16385C;
}
.code__dots span:nth-child(1) { background: #B91C1C; opacity: 0.65; }
.code__dots span:nth-child(2) { background: #D97706; opacity: 0.65; }
.code__dots span:nth-child(3) { background: #4A5D23; opacity: 0.85; }
.code__filename {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: #8FA3B8;
}
.code__lang {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--c-accent);
  letter-spacing: 0.1em;
}

.code__window pre {
  margin: 0;
  padding: 24px 28px;
  font-size: 0.85rem;
  line-height: 1.65;
  color: #DCE7F0;
  overflow-x: auto;
}
.code__window pre code { font-family: inherit; }

.tk-key      { color: #D4A84B; }      /* gold = keywords */
.tk-type     { color: #7DB3CF; }      /* azul tecnico */
.tk-fn       { color: #E8C977; }
.tk-str      { color: #A4B89A; }      /* olivo claro */
.tk-num      { color: #E8C977; }
.tk-com      { color: #5C7A95; font-style: italic; }
.tk-attr     { color: #9CB6CC; }
.tk-punct    { color: #8FA3B8; }
.tk-var      { color: #DCE7F0; }

/* ---------- Process ------------------------------------------------------ */
.process {
  background: var(--c-surface);
  border-top: 1px solid var(--c-divider);
}
.process__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 24px;
}
@media (max-width: 880px) { .process__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .process__grid { grid-template-columns: 1fr; } }

.process__item { position: relative; padding-top: 28px; }
.process__item::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 60px; height: 1px;
  background: var(--c-accent);
}
.process__num {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--c-accent);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}
.process__item h4 {
  font-family: var(--f-display);
  font-size: 1.4rem;
  font-weight: 500;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.process__item p {
  font-size: 0.94rem;
  color: var(--c-text-2);
  line-height: 1.55;
}
.process__duration {
  margin-top: 12px;
  font-family: var(--f-mono);
  font-size: 0.74rem;
  color: var(--c-text-3);
  letter-spacing: 0.05em;
}

/* ---------- Final CTA ---------------------------------------------------- */
.cta-final {
  background: var(--c-primary-deep);
  color: var(--c-text-on-dark);
  position: relative;
  overflow: hidden;
}
.cta-final::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 168, 75, 0.15), transparent 60%);
  pointer-events: none;
}
.cta-final::after {
  content: '';
  position: absolute;
  bottom: -200px; left: -100px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 77, 123, 0.4), transparent 70%);
  pointer-events: none;
}
.cta-final .container { position: relative; z-index: 1; max-width: 880px; text-align: center; }
.cta-final h2 {
  color: var(--c-text-on-dark);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  margin-bottom: 24px;
}
.cta-final h2 em { color: var(--c-accent); font-style: italic; }
.cta-final p {
  color: var(--c-text-on-dark-2);
  font-size: 1.15rem;
  max-width: 560px;
  margin: 0 auto 40px;
}

/* ---------- Contact ----------------------------------------------------- */
.contact {
  background: var(--c-bg);
}
.contact__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 1024px) { .contact__grid { grid-template-columns: 1fr; } }

.contact__form {
  background: var(--c-surface);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--c-divider);
}
.field { margin-bottom: 22px; }
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--c-text);
  letter-spacing: -0.005em;
}
.field label .req { color: var(--c-accent); margin-left: 2px; }
.field input,
.field textarea {
  width: 100%;
  padding: 12px 16px;
  font: inherit;
  font-size: 0.96rem;
  color: var(--c-text);
  background: var(--c-bg);
  border: 1px solid var(--c-divider);
  border-radius: var(--radius);
  transition: all var(--t-fast);
  font-family: var(--f-body);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  background: var(--c-surface);
  box-shadow: 0 0 0 3px rgba(30, 77, 123, 0.1);
}
.field textarea { min-height: 120px; resize: vertical; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 480px) { .field-row { grid-template-columns: 1fr; } }
.form-note {
  font-size: 0.82rem;
  color: var(--c-text-3);
  margin-top: 16px;
  line-height: 1.5;
}

.contact__info {
  background: var(--c-primary-dark);
  color: var(--c-text-on-dark);
  padding: 40px;
  border-radius: var(--radius-lg);
}
.contact__info h3 {
  color: var(--c-text-on-dark);
  font-size: 1.3rem;
  font-family: var(--f-display);
  font-weight: 400;
  margin-bottom: 24px;
}
.contact__info__group {
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}
.contact__info__group:first-of-type { padding-top: 0; }
.contact__info__group:last-of-type { border-bottom: 0; }
.contact__info__label {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 6px;
}
.contact__info__value {
  font-size: 1rem;
  color: var(--c-text-on-dark);
  line-height: 1.5;
}
.contact__info__value a {
  color: var(--c-text-on-dark);
  border-bottom: 1px solid rgba(212, 168, 75, 0.4);
  transition: border-color var(--t-fast);
}
.contact__info__value a:hover { border-color: var(--c-accent); color: var(--c-accent); }

.contact__map {
  margin-top: 24px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.2);
  aspect-ratio: 16/9;
}
.contact__map iframe {
  width: 100%; height: 100%;
  border: 0;
  display: block;
  filter: contrast(1.05) saturate(0.85);
}

/* ---------- Footer ------------------------------------------------------ */
.footer {
  background: var(--c-primary-deep);
  color: var(--c-text-on-dark);
  padding: 80px 0 32px;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--c-accent) 50%, transparent 100%);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
@media (max-width: 880px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
}

.footer__brand-block .brand {
  color: var(--c-text-on-dark);
  margin-bottom: 16px;
}
.footer__brand-block .brand:hover { color: var(--c-accent); }
.footer__desc {
  font-size: 0.92rem;
  color: var(--c-text-on-dark-2);
  line-height: 1.6;
  margin-bottom: 20px;
  max-width: 360px;
}
.footer__legal-info {
  font-size: 0.84rem;
  color: var(--c-text-on-dark-2);
  line-height: 1.6;
  font-family: var(--f-mono);
}
.footer__legal-info strong {
  display: block;
  color: var(--c-accent);
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.footer h4 {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent);
  font-weight: 500;
  margin-bottom: 20px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 12px; }
.footer li a {
  color: var(--c-text-on-dark-2);
  font-size: 0.92rem;
  transition: color var(--t-fast);
}
.footer li a:hover { color: var(--c-accent); }
.footer__contact-line {
  font-size: 0.92rem;
  color: var(--c-text-on-dark-2);
  margin-bottom: 12px;
  line-height: 1.5;
}
.footer__contact-line a {
  color: var(--c-text-on-dark);
}
.footer__contact-line a:hover { color: var(--c-accent); }

.footer__bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(232, 227, 214, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--c-text-on-dark-2);
}
.footer__bottom__made {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 0.92rem;
  color: var(--c-accent);
}

/* ---------- Reveal animations (JS-only) --------------------------------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 800ms var(--ease), transform 800ms var(--ease);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }
.js [data-reveal-delay="1"] { transition-delay: 80ms; }
.js [data-reveal-delay="2"] { transition-delay: 160ms; }
.js [data-reveal-delay="3"] { transition-delay: 240ms; }
.js [data-reveal-delay="4"] { transition-delay: 320ms; }

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

/* ---------- Legal pages ------------------------------------------------ */
.legal-hero {
  padding: 80px 0 48px;
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-divider);
}
.legal-hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin: 16px 0 12px;
}
.legal-hero p {
  color: var(--c-text-2);
  margin: 0;
  font-size: 1rem;
}
.legal {
  padding: 64px 0;
  background: var(--c-surface);
}
.legal-content {
  max-width: 780px;
  margin: 0 auto;
}
.legal-content .alert {
  padding: 18px 24px;
  background: var(--c-bg-alt);
  border-left: 3px solid var(--c-accent);
  border-radius: 4px;
  margin-bottom: 40px;
  font-size: 0.94rem;
  color: var(--c-text-2);
}
.legal-content h2 {
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--c-text);
  margin: 40px 0 16px;
  padding-top: 24px;
  border-top: 1px solid var(--c-divider);
}
.legal-content h2:first-of-type { border-top: 0; padding-top: 0; }
.legal-content h3 {
  font-family: var(--f-body);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 24px 0 10px;
  color: var(--c-text);
}
.legal-content p, .legal-content li {
  font-size: 0.96rem;
  color: var(--c-text-2);
  line-height: 1.65;
}
.legal-content ul { padding-left: 24px; margin: 12px 0 16px; }
.legal-content li { margin-bottom: 6px; }
.legal-content strong { color: var(--c-text); font-weight: 600; }
.legal-content a {
  color: var(--c-primary);
  border-bottom: 1px solid var(--c-accent);
}