/* ============================================================
   NEXUS CONSULTORA · styles.css
   Diseño premium 2025 · Mobile First · CSS Variables
   ============================================================ */

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

:root {
  /* Paleta principal */
  --color-ink:        #0A0D14;
  --color-ink-mid:    #1E2435;
  --color-ink-soft:   #3D4461;
  --color-muted:      #6B748E;
  --color-border:     #E2E6F0;
  --color-bg:         #F7F8FC;
  --color-white:      #FFFFFF;

  /* Acento */
  --color-accent:     #1A56DB;
  --color-accent-hover: #1545BE;
  --color-accent-light: #EEF3FD;
  --color-gold:       #C9A84C;

  /* Tipografía */
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  /* Espaciado */
  --section-py:    6rem;
  --container-max: 1280px;
  --container-px:  1.5rem;

  /* Radios */
  --radius-sm:  0.5rem;
  --radius-md:  0.875rem;
  --radius-lg:  1.5rem;
  --radius-xl:  2rem;

  /* Sombras */
  --shadow-xs:  0 1px 3px rgba(10,13,20,.06), 0 1px 2px rgba(10,13,20,.04);
  --shadow-sm:  0 2px 8px rgba(10,13,20,.08), 0 1px 3px rgba(10,13,20,.06);
  --shadow-md:  0 8px 24px rgba(10,13,20,.10), 0 2px 8px rgba(10,13,20,.06);
  --shadow-lg:  0 24px 48px rgba(10,13,20,.14), 0 8px 16px rgba(10,13,20,.08);
  --shadow-xl:  0 40px 80px rgba(10,13,20,.18);

  /* Transiciones */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration:   0.3s;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ink);
  background-color: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration) var(--ease-out);
}

ul { list-style: none; }

/* ─── UTILITIES ─── */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.section-label.light { color: rgba(255,255,255,0.7); }

.section-label::before {
  content: '';
  width: 2rem;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-ink);
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.section-title em {
  font-style: normal;
  color: var(--color-accent);
}

.section-title.light { color: var(--color-white); }
.section-title.light em { color: rgba(255,255,255,0.75); }

.section-desc {
  font-size: 1.0625rem;
  color: var(--color-muted);
  max-width: 52ch;
  line-height: 1.7;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header .section-desc {
  margin-inline: auto;
}

/* Fondos de sección */
.section-bg-image {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.section-bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.section-overlay {
  position: absolute;
  inset: 0;
}

.overlay-light  { background: rgba(247,248,252,0.94); }
.overlay-dark   { background: rgba(10,13,20,0.82); }
.overlay-accent { background: linear-gradient(135deg, rgba(10,13,20,0.90) 0%, rgba(26,86,219,0.85) 100%); }

.section-bg-solid { position: absolute; inset: 0; z-index: 0; }
.bg-light { background: var(--color-bg); }
.bg-white { background: var(--color-white); }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration) var(--ease-out);
  white-space: nowrap;
}

.btn svg { flex-shrink: 0; transition: transform var(--duration) var(--ease-out); }
.btn:hover svg { transform: translateX(3px); }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: 0 8px 24px rgba(26,86,219,0.35);
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(255,255,255,0.12);
  color: var(--color-white);
  border-color: rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.45);
}

.btn-dark-bg {
  background: var(--color-white);
  color: var(--color-accent);
  border-color: var(--color-white);
}

.btn-dark-bg:hover {
  background: var(--color-accent-light);
  box-shadow: 0 8px 24px rgba(255,255,255,0.2);
  transform: translateY(-1px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}

.btn-outline-dark:hover {
  border-color: var(--color-ink);
  background: var(--color-bg);
  transform: translateY(-1px);
}

.btn-lg {
  font-size: 1rem;
  padding: 1rem 2rem;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ─── NAVBAR ─── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all 0.4s var(--ease-out);
}

.navbar.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  padding: 0.875rem 0;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-shrink: 0;
}

.logo-mark {
  width: 2.25rem;
  height: 2.25rem;
  background: var(--color-accent);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  color: white;
  letter-spacing: -0.03em;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.04em;
  transition: color var(--duration) var(--ease-out);
}

.navbar.scrolled .logo-text { color: var(--color-ink); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease-out);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0.25rem;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 1.25rem;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: transform var(--duration) var(--ease-out);
}

.nav-link:hover { color: white; }
.nav-link.active::after,
.nav-link:hover::after { transform: translateX(-50%) scaleX(1); }

.navbar.scrolled .nav-link { color: var(--color-ink-soft); }
.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active { color: var(--color-accent); }

.nav-cta {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-white);
  background: var(--color-accent);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: all var(--duration) var(--ease-out);
}

.nav-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(26,86,219,0.4);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  margin-left: auto;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--duration) var(--ease-out);
}

.navbar.scrolled .hamburger span { background: var(--color-ink); }

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.05);
  animation: heroZoom 18s ease-out forwards;
}

@keyframes heroZoom {
  to { transform: scale(1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10,13,20,0.75) 0%,
    rgba(26,86,219,0.45) 60%,
    rgba(10,13,20,0.60) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  padding-top: 7rem;
  padding-bottom: 4rem;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.05em;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  padding: 0.375rem 1rem;
  border-radius: 100px;
  margin-bottom: 2rem;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: #4ADE80;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(1.5); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.04em;
  color: var(--color-white);
  max-width: 16ch;
  margin-bottom: 1.5rem;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, #60A5FA 0%, #A78BFA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.75);
  max-width: 48ch;
  line-height: 1.6;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 4rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.stat-item strong {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.04em;
}

.stat-item span {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
}

.stat-divider {
  width: 1px;
  height: 2.5rem;
  background: rgba(255,255,255,0.2);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.scroll-dot {
  width: 1.5rem;
  height: 2.5rem;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 100px;
  position: relative;
}

.scroll-dot::after {
  content: '';
  position: absolute;
  top: 0.3rem;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: rgba(255,255,255,0.7);
  border-radius: 2px;
  animation: scrollBounce 1.8s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  70%      { transform: translateX(-50%) translateY(10px); opacity: 0; }
}

/* ─── SERVICIOS ─── */
.section-servicios {
  position: relative;
  padding-block: var(--section-py);
  overflow: hidden;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  transition: all var(--duration) var(--ease-out);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent) 0%, #3B82F6 100%);
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  z-index: 0;
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.service-card:hover::before { opacity: 1; }
.service-card:hover .card-icon { color: var(--color-white); background: rgba(255,255,255,0.15); }
.service-card:hover h3,
.service-card:hover p,
.service-card:hover .card-link { color: var(--color-white); }
.service-card:hover .card-badge { background: rgba(255,255,255,0.2); color: white; }

.service-card > * { position: relative; z-index: 1; }

.service-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.12), var(--shadow-md);
}

.card-badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--color-accent-light);
  color: var(--color-accent);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  z-index: 2;
  transition: all var(--duration);
}

.card-icon {
  width: 3rem;
  height: 3rem;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: all var(--duration) var(--ease-out);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 0.75rem;
  transition: color var(--duration);
  letter-spacing: -0.02em;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  transition: color var(--duration);
}

.card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: all var(--duration) var(--ease-out);
}

.card-link:hover { gap: 0.625rem; }

/* ─── NOSOTROS ─── */
.section-nosotros {
  position: relative;
  padding-block: var(--section-py);
  overflow: hidden;
}

.nosotros-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.nosotros-img-wrap {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.nosotros-img-wrap img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  transition: transform 0.8s var(--ease-out);
}

.nosotros-img-wrap:hover img { transform: scale(1.04); }

.nosotros-img-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
}

.nosotros-img-badge strong {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.04em;
  line-height: 1;
}

.nosotros-img-badge span {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.3;
}

.nosotros-text {
  color: rgba(255,255,255,0.75);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1rem;
}

.nosotros-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-block: 2rem;
}

.nosotros-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: rgba(255,255,255,0.85);
  font-size: 0.9375rem;
}

.nosotros-features li svg {
  flex-shrink: 0;
  margin-top: 0.1rem;
  color: #60A5FA;
}

/* ─── PORTAFOLIO ─── */
.section-portafolio {
  position: relative;
  padding-block: var(--section-py);
  overflow: hidden;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 1.25rem;
  position: relative;
  z-index: 1;
}

.portfolio-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

.portfolio-item.large {
  grid-column: 2 / 4;
  grid-row: 1;
}

.portfolio-item:first-child { grid-row: 1; }

.portfolio-img-wrap {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  height: 260px;
}

.portfolio-item.large .portfolio-img-wrap { height: 340px; }

.portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-out);
}

.portfolio-item:hover .portfolio-img-wrap img { transform: scale(1.07); }

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,13,20,0.92) 0%, rgba(10,13,20,0.2) 60%, transparent 100%);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
}

.portfolio-item:hover .portfolio-overlay { opacity: 1; }

.portfolio-cat {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #60A5FA;
  margin-bottom: 0.5rem;
}

.portfolio-overlay h3 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.portfolio-overlay p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.5;
}

.portfolio-cta {
  text-align: center;
  margin-top: 3rem;
  position: relative;
  z-index: 1;
}

/* ─── BENEFICIOS ─── */
.section-beneficios {
  position: relative;
  padding-block: var(--section-py);
  overflow: hidden;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 5rem;
  position: relative;
  z-index: 1;
}

.stat-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  transition: all var(--duration) var(--ease-out);
}

.stat-card:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.05em;
  line-height: 1;
}

.stat-plus {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: #60A5FA;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.stat-card p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.5;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.feature-item {
  padding: 2rem 1.5rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  transition: all var(--duration) var(--ease-out);
}

.feature-item:hover {
  background: rgba(255,255,255,0.11);
  transform: translateY(-3px);
}

.feature-icon {
  width: 3rem;
  height: 3rem;
  background: rgba(26,86,219,0.3);
  border: 1px solid rgba(26,86,219,0.4);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #93C5FD;
  margin-bottom: 1.25rem;
}

.feature-item h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.625rem;
  letter-spacing: -0.02em;
}

.feature-item p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

/* ─── CTA BAND ─── */
.section-cta {
  background: linear-gradient(135deg, var(--color-ink) 0%, var(--color-ink-mid) 100%);
  padding-block: 5rem;
  position: relative;
  overflow: hidden;
}

.section-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(26,86,219,0.25) 0%, transparent 60%);
  border-radius: 50%;
}

.cta-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 0.875rem;
}

.cta-content h2 em {
  font-style: normal;
  background: linear-gradient(135deg, #60A5FA 0%, #A78BFA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-content p {
  color: rgba(255,255,255,0.6);
  font-size: 1rem;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

/* ─── CONTACTO ─── */
.section-contacto {
  position: relative;
  padding-block: var(--section-py);
  overflow: hidden;
}

.contacto-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: flex-start;
  position: relative;
  z-index: 1;
}

.contacto-desc {
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-accent-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-details strong {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.25rem;
}

.contact-details a,
.contact-details span {
  font-size: 0.9375rem;
  color: var(--color-ink);
  line-height: 1.5;
}

.contact-details a:hover { color: var(--color-accent); }

/* Social links */
.social-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  transition: all var(--duration) var(--ease-out);
}

.social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(26,86,219,0.35);
}

/* ─── FORMULARIO ─── */
.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-ink-soft);
}

.required { color: var(--color-accent); }

.form-group input,
.form-group textarea,
.form-group select {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-ink);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  width: 100%;
  outline: none;
  transition: all var(--duration) var(--ease-out);
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-muted); opacity: 0.7; }

.form-group input:hover,
.form-group textarea:hover,
.form-group select:hover { border-color: #B0B9D6; }

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-accent);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.12);
}

.form-group input.error,
.form-group textarea.error { border-color: #EF4444; box-shadow: 0 0 0 3px rgba(239,68,68,0.1); }

.form-group textarea { resize: vertical; min-height: 120px; }

.form-group select { cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B748E' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem; }

.field-error {
  font-size: 0.8125rem;
  color: #EF4444;
  min-height: 1.2em;
}

.form-footer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.5rem;
}

.form-privacy {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

#submitBtn { position: relative; overflow: hidden; }
#submitBtn .btn-loading {
  display: none;
  animation: spin 0.8s linear infinite;
}

#submitBtn.loading .btn-text,
#submitBtn.loading .btn-arrow { display: none; }
#submitBtn.loading .btn-loading { display: block; }

@keyframes spin { to { transform: rotate(360deg); } }

.form-success {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: #F0FDF4;
  border: 1px solid #86EFAC;
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1rem;
  color: #166534;
}

.form-success svg { color: #22C55E; flex-shrink: 0; margin-top: 0.125rem; }
.form-success strong { display: block; margin-bottom: 0.25rem; font-weight: 600; }
.form-success p { font-size: 0.875rem; opacity: 0.8; }

/* ─── FOOTER ─── */
.footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.65);
}

.footer-top {
  padding-block: 5rem 3.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
}

.footer-brand .nav-logo {
  margin-bottom: 1.25rem;
}

.footer-logo .logo-text { color: var(--color-white); }

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 30ch;
  margin-bottom: 1.5rem;
}

.footer-brand .social-links .social-link {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.5);
}

.footer-brand .social-links .social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

.footer-nav h4,
.footer-contact h4 {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav a {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--duration) var(--ease-out);
}

.footer-nav a:hover { color: var(--color-white); }

.footer-contact address {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.footer-contact svg { flex-shrink: 0; margin-top: 0.15rem; opacity: 0.6; }

.footer-contact a { color: rgba(255,255,255,0.55); }
.footer-contact a:hover { color: var(--color-white); }

.footer-bottom {
  padding-block: 1.5rem;
}

.footer-bottom-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 0.875rem; }

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--duration);
}

.footer-legal a:hover { color: rgba(255,255,255,0.8); }

/* ─── WHATSAPP FLOTANTE ─── */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 3.5rem;
  height: 3.5rem;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 20px rgba(37,211,102,0.45);
  transition: all var(--duration) var(--ease-out);
  animation: waBounce 3s ease-in-out infinite;
}

.whatsapp-float:hover {
  background: #22BD5A;
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 8px 28px rgba(37,211,102,0.55);
  animation: none;
}

@keyframes waBounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

.whatsapp-tooltip {
  position: absolute;
  right: calc(100% + 0.875rem);
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  background: var(--color-ink);
  color: white;
  font-size: 0.8125rem;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration) var(--ease-out);
}

.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--color-ink);
}

.whatsapp-float:hover .whatsapp-tooltip { opacity: 1; }

/* ─── BOTÓN CERRAR MENÚ MÓVIL ─── */
/* Oculto en desktop, visible en móvil (activado dentro del media query) */
.nav-close {
  display: none;
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.75rem;
  height: 2.75rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,0.9);
  transition: background 0.2s ease, transform 0.2s ease;
  flex-shrink: 0;
  z-index: 10;
}

.nav-close:hover {
  background: rgba(255,255,255,0.18);
  transform: rotate(90deg);
}

/* ─── AOS OVERRIDES ─── */
[data-aos] { will-change: transform, opacity; }

/* ─── RESPONSIVE ─── */

/* Tablet grande */
@media (max-width: 1200px) {
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Tablet */
@media (max-width: 960px) {
  :root { --section-py: 4.5rem; }

  .nav-cta { display: none; }
  .hamburger { display: flex; }

  /* Mobile menu — overlay pantalla completa */
  .nav-links {
    /* Posición: cubre TODA la pantalla ignorando el scroll */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Por encima del navbar (z-index 1000) y de todo lo demás */
    z-index: 1200;
    /* Fondo sólido — sin transparencia para evitar ver contenido detrás */
    background: #0A0D14;
    /* Centrar los links verticalmente */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    /* Oculto por defecto con visibilidad + opacidad (no display:none)
       Así la transición funciona correctamente */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    /* Scroll interno por si el contenido no cabe */
    overflow-y: auto;
    /* Padding superior para el botón de cerrar */
    padding: 5rem 2rem 2rem;
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
  }

  .nav-links .nav-link {
    font-size: 1.625rem;
    font-weight: 700;
    color: rgba(255,255,255,0.75);
    padding: 0.75rem 2rem;
    width: 100%;
    text-align: center;
    border-radius: 0.75rem;
    transition: background 0.2s ease, color 0.2s ease;
  }

  .nav-links .nav-link:hover,
  .nav-links .nav-link.active {
    color: white;
    background: rgba(255,255,255,0.07);
  }

  /* Botón cerrar — visible solo en móvil */
  .nav-close {
    display: flex;
  }

  .nosotros-layout       { grid-template-columns: 1fr; gap: 3rem; }
  .contacto-layout       { grid-template-columns: 1fr; gap: 3rem; }
  .portfolio-grid        { grid-template-columns: 1fr 1fr; }
  .portfolio-item.large  { grid-column: 1 / 3; }
  .footer-grid           { grid-template-columns: 1fr 1fr; }
  .cta-layout            { flex-direction: column; align-items: flex-start; }
  .form-row              { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 640px) {
  :root { --section-py: 4rem; --container-px: 1.25rem; }

  .hero-title    { font-size: clamp(2.25rem, 9vw, 3rem); }
  .hero-actions  { flex-direction: column; }
  .btn           { width: 100%; justify-content: center; }
  .hero-stats    { gap: 1.25rem; }
  .stat-divider  { height: 1.5rem; }

  .services-grid    { grid-template-columns: 1fr; }
  .stats-grid       { grid-template-columns: 1fr 1fr; }
  .features-grid    { grid-template-columns: 1fr; }
  .portfolio-grid   { grid-template-columns: 1fr; }
  .portfolio-item.large { grid-column: 1; }
  .footer-grid      { grid-template-columns: 1fr; }
  .footer-legal     { flex-direction: column; gap: 0.5rem; }
  .footer-bottom-layout { flex-direction: column; align-items: flex-start; }
  .contact-form     { padding: 1.5rem; }
  .cta-actions      { flex-direction: column; width: 100%; }

  .nosotros-img-wrap img { height: 320px; }

  .whatsapp-float { bottom: 1.5rem; right: 1.5rem; }
}

/* Reducción de movimiento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}