/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #FAFAFA;
  --bg-2: #F3F4F6;
  --ink: #111827;
  --ink-soft: #374151;
  --ink-mute: #6B7280;
  --secondary: #4F46E5;
  --accent: #7C3AED;
  --accent-light: rgba(124,58,237,.1);
  --secondary-light: rgba(79,70,229,.1);
  --card: #ffffff;
  --line: rgba(17,24,39,.08);
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", monospace;
  --ease-out: cubic-bezier(0.16,1,0.3,1);
  --ease-soft: cubic-bezier(0.25,0.46,0.45,0.94);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.07), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.06);
  --gutter: clamp(1.25rem,4vw,2rem);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.1; letter-spacing: -0.025em; color: var(--ink); }
em { font-style: italic; }
::selection { background: var(--secondary); color: #fff; }
:focus-visible { outline: 2px solid var(--secondary); outline-offset: 3px; border-radius: 4px; }

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--ink); color: #fff;
  z-index: 9999; border-radius: 8px; font-size: .875rem; font-weight: 500;
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.section-header {
  max-width: 640px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  margin-top: .5rem;
}
.section-header h2 em { color: var(--secondary); font-style: italic; }
.section-kicker {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--secondary);
  font-weight: 500;
}
.section-note {
  font-size: .875rem;
  color: var(--ink-mute);
  margin-top: .75rem;
  font-style: italic;
}

/* =============================================================
   4. Buttons
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem 1.4rem;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 600;
  transition: all .25s var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--secondary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(79,70,229,.3);
}
.btn-primary:hover {
  background: var(--accent);
  box-shadow: 0 6px 20px rgba(124,58,237,.35);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--secondary);
  color: var(--secondary);
  transform: translateY(-2px);
}
.btn-lg { padding: .8rem 1.8rem; font-size: .95rem; }
.btn-xl { padding: 1rem 2.4rem; font-size: 1rem; border-radius: 12px; }
.btn-whatsapp {
  background: #25D366;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.4rem;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 600;
  transition: all .25s var(--ease-out);
}
.btn-whatsapp:hover { background: #1ebe57; transform: translateY(-2px); }

/* =============================================================
   5. Nav
   ============================================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250,250,250,.8);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s, box-shadow .3s;
}
.nav.scrolled {
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 68px;
}
.nav-logo {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: flex;
  align-items: baseline;
  gap: 0;
  flex-shrink: 0;
}
.logo-evolucion { color: var(--ink); }
.logo-ia { color: var(--secondary); }
.logo-labs { color: var(--ink-mute); font-weight: 400; font-size: .9em; }
.nav-links {
  display: none;
  gap: 0;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding: .4rem .75rem;
  border-radius: 6px;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--secondary); background: var(--secondary-light); }
.nav-cta { margin-left: auto; }
.nav-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: .5rem;
  margin-left: auto;
  border-radius: 6px;
  transition: background .2s;
}
.nav-hamburger:hover { background: var(--bg-2); }
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all .3s var(--ease-out);
}
.nav-hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.is-open span:nth-child(2) { opacity: 0; }
.nav-hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem var(--gutter) 2rem;
  border-top: 1px solid var(--line);
  background: rgba(250,250,250,.98);
}
.nav-mobile.is-open { display: flex; }
.nav-mobile ul { display: flex; flex-direction: column; gap: .25rem; }
.nav-mobile a {
  display: block;
  padding: .6rem .75rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-radius: 8px;
  transition: background .2s, color .2s;
}
.nav-mobile a:hover { background: var(--secondary-light); color: var(--secondary); }
.nav-mobile .btn { align-self: flex-start; }

/* =============================================================
   6. Hero
   ============================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 68px;
  overflow: hidden;
}
.hero-mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(79,70,229,.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 20% 80%, rgba(124,58,237,.10) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 60% 60%, rgba(99,102,241,.07) 0%, transparent 55%);
  filter: blur(40px);
  animation: meshDrift 20s ease-in-out infinite;
}
@keyframes meshDrift {
  0%, 100% { transform: scale(1) rotate(0deg); }
  33% { transform: scale(1.05) rotate(2deg); }
  66% { transform: scale(0.98) rotate(-1deg); }
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  padding-block: clamp(3rem, 6vw, 5rem);
}
.hero-content { max-width: 580px; }
.hero-kicker {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--secondary);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.hero-kicker::before {
  content: '';
  display: inline-block;
  width: 20px; height: 2px;
  background: var(--secondary);
  border-radius: 2px;
}
.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.05;
  display: flex;
  flex-direction: column;
  gap: .1em;
  margin-bottom: 1.25rem;
}
.hero-title .accent-line { color: var(--secondary); }
.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1.75rem;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .78rem;
  font-weight: 500;
  color: var(--ink-mute);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: .3rem .75rem;
}
.badge svg { color: var(--secondary); flex-shrink: 0; }

/* Browser Mockup */
.hero-visual { position: relative; }
.browser-mockup {
  background: var(--card);
  border-radius: 14px;
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--line);
  overflow: hidden;
  width: 100%;
  max-width: 480px;
  margin-inline: auto;
  animation: floatY 6s ease-in-out infinite;
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.browser-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.browser-dot.red { background: #FF5F56; }
.browser-dot.yellow { background: #FFBD2E; }
.browser-dot.green { background: #27C93F; }
.browser-url {
  flex: 1;
  background: var(--card);
  border-radius: 6px;
  padding: .25rem .75rem;
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--ink-mute);
  text-align: center;
}
.browser-screen { padding: 1rem; background: #fff; }
.mock-nav-bar {
  height: 32px;
  background: var(--bg-2);
  border-radius: 6px;
  margin-bottom: .875rem;
}
.mock-hero-area {
  background: linear-gradient(135deg, rgba(79,70,229,.06) 0%, rgba(124,58,237,.06) 100%);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: .875rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.mock-line { height: 10px; border-radius: 4px; background: var(--bg-2); }
.mock-line--lg { width: 80%; }
.mock-line--md { width: 60%; }
.mock-line--sm { width: 45%; }
.accent-mock { background: linear-gradient(90deg, var(--secondary), var(--accent)); opacity: .6; }
.mock-btn-row { display: flex; gap: .5rem; margin-top: .25rem; }
.mock-btn-item { height: 24px; border-radius: 6px; width: 80px; }
.mock-btn-filled { background: var(--secondary); opacity: .7; }
.mock-btn-outline { background: transparent; border: 1.5px solid var(--line); }
.mock-cards-area { display: grid; grid-template-columns: repeat(3,1fr); gap: .5rem; }
.mock-card-item { height: 52px; background: var(--bg-2); border-radius: 6px; }

/* Float tags */
.float-tag {
  position: absolute;
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  font-weight: 600;
  color: var(--ink);
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: .4rem .9rem;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.float-tag svg { color: var(--secondary); flex-shrink: 0; }
.float-tag--1 { top: 15%; right: -5%; animation: floatTag1 5s ease-in-out infinite; }
.float-tag--2 { bottom: 30%; left: -8%; animation: floatTag2 6s ease-in-out infinite; }
.float-tag--3 { bottom: 10%; right: 5%; animation: floatTag3 4.5s ease-in-out infinite; }
@keyframes floatTag1 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
@keyframes floatTag2 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(6px)} }
@keyframes floatTag3 { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-5px)} }

/* =============================================================
   7. Why Section
   ============================================================= */
.why-section { background: var(--bg); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.why-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: box-shadow .3s var(--ease-out), border-color .3s, transform .3s var(--ease-out);
}
.why-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(79,70,229,.2);
  transform: translateY(-3px);
}
.why-icon {
  width: 44px; height: 44px;
  background: var(--secondary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  margin-bottom: 1rem;
}
.why-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: .4rem; }
.why-card p { font-size: .875rem; color: var(--ink-mute); line-height: 1.6; }

/* =============================================================
   8. Process
   ============================================================= */
.process-section { background: var(--bg-2); }
.process-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.process-step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.process-step:last-child { border-bottom: none; }
.process-num {
  font-family: var(--mono);
  font-size: .75rem;
  font-weight: 700;
  color: var(--secondary);
  background: var(--secondary-light);
  border-radius: 8px;
  padding: .35rem .6rem;
  flex-shrink: 0;
  margin-top: .15rem;
  letter-spacing: .05em;
}
.process-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: .35rem; }
.process-body p { font-size: .9rem; color: var(--ink-mute); line-height: 1.6; }

/* =============================================================
   9. Services
   ============================================================= */
.services-section { background: var(--bg); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.service-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: box-shadow .3s var(--ease-out), border-color .3s, transform .3s var(--ease-out);
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(79,70,229,.04) 0%, rgba(124,58,237,.04) 100%);
  opacity: 0;
  transition: opacity .3s;
}
.service-card:hover::before { opacity: 1; }
.service-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(79,70,229,.2);
  transform: translateY(-3px);
}
.service-icon {
  width: 50px; height: 50px;
  background: linear-gradient(135deg, var(--secondary-light), var(--accent-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  margin-bottom: 1.25rem;
}
.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: .5rem; }
.service-card p { font-size: .875rem; color: var(--ink-mute); line-height: 1.65; }
.service-arrow {
  display: block;
  margin-top: 1rem;
  font-size: 1.1rem;
  color: var(--secondary);
  transition: transform .2s var(--ease-out);
}
.service-card:hover .service-arrow { transform: translateX(5px); }

/* =============================================================
   10. Portfolio
   ============================================================= */
.portfolio-section { background: var(--bg-2); }
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.portfolio-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
  transition: box-shadow .3s var(--ease-out), transform .3s var(--ease-out);
}
.portfolio-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.portfolio-img-wrap {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.portfolio-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease-out);
}
.portfolio-card:hover .portfolio-img-wrap img { transform: scale(1.06); }
.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(79,70,229,.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .3s;
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay span {
  color: #fff;
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .02em;
}
.portfolio-info { padding: 1.25rem; }
.portfolio-cat {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--secondary);
  font-weight: 600;
}
.portfolio-info h3 { font-size: 1rem; font-weight: 700; margin: .3rem 0 .4rem; }
.portfolio-info p { font-size: .85rem; color: var(--ink-mute); line-height: 1.55; }

/* =============================================================
   11. Stats
   ============================================================= */
.stats-section {
  position: relative;
  padding-block: clamp(3.5rem,7vw,6rem);
  overflow: hidden;
}
.stats-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #111827 0%, #1e1b4b 50%, #111827 100%);
  z-index: 0;
}
.stats-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 20% 50%, rgba(79,70,229,.3) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 80% 50%, rgba(124,58,237,.25) 0%, transparent 60%);
}
.stats-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 2rem;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: .5rem;
}
.stat-text {
  background: linear-gradient(135deg, #818CF8, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-item p {
  font-size: .875rem;
  color: rgba(255,255,255,.55);
  max-width: 160px;
  margin-inline: auto;
  line-height: 1.5;
}

/* =============================================================
   12. Plans
   ============================================================= */
.plans-section { background: var(--bg); }
.plans-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 800px;
  margin-inline: auto;
}
.plan-card {
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: 20px;
  padding: 2rem;
  position: relative;
  transition: box-shadow .3s var(--ease-out), transform .3s var(--ease-out), border-color .3s;
}
.plan-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.plan-card--featured {
  border-color: var(--secondary);
  background: linear-gradient(145deg, #fff 0%, rgba(79,70,229,.03) 100%);
  box-shadow: 0 0 0 1px var(--secondary), var(--shadow-md);
}
.plan-card--featured:hover { box-shadow: 0 0 0 1px var(--secondary), var(--shadow-lg); }
.plan-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .3rem 1rem;
  border-radius: 99px;
  white-space: nowrap;
}
.plan-header { margin-bottom: 1.5rem; }
.plan-header h3 { font-size: 1.3rem; font-weight: 800; margin-bottom: .5rem; }
.plan-price {
  display: flex;
  align-items: baseline;
  gap: .2rem;
  margin-bottom: .5rem;
}
.plan-amount { font-size: 2.5rem; font-weight: 900; color: var(--secondary); letter-spacing: -0.03em; }
.plan-period { font-size: .9rem; color: var(--ink-mute); }
.plan-header p { font-size: .875rem; color: var(--ink-mute); }
.plan-features {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-bottom: 1.75rem;
}
.plan-features li {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .875rem;
  color: var(--ink-soft);
}
.plan-features svg { color: var(--secondary); flex-shrink: 0; }
.plan-btn { width: 100%; justify-content: center; }

/* =============================================================
   13. FAQ
   ============================================================= */
.faq-section { background: var(--bg-2); }
.faq-container { display: grid; grid-template-columns: 1fr; gap: 3rem; }
.faq-list { display: flex; flex-direction: column; gap: .75rem; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item:has(.faq-q[aria-expanded="true"]) {
  border-color: rgba(79,70,229,.25);
  box-shadow: var(--shadow-sm);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  text-align: left;
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink);
  transition: color .2s;
}
.faq-q:hover { color: var(--secondary); }
.faq-chevron { flex-shrink: 0; transition: transform .3s var(--ease-out); color: var(--ink-mute); }
.faq-q[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); color: var(--secondary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s var(--ease-out), padding .3s;
}
.faq-a.is-open { max-height: 300px; }
.faq-a p {
  padding: 0 1.25rem 1.25rem;
  font-size: .875rem;
  color: var(--ink-mute);
  line-height: 1.7;
}

/* =============================================================
   14. CTA Section
   ============================================================= */
.cta-section {
  position: relative;
  padding-block: clamp(5rem,10vw,9rem);
  text-align: center;
  overflow: hidden;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 80% at 50% 50%, rgba(79,70,229,.1) 0%, transparent 65%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(124,58,237,.08) 0%, transparent 55%),
    var(--bg);
  z-index: 0;
}
.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin-inline: auto;
}
.cta-kicker { margin-bottom: 1rem; }
.cta-title {
  font-size: clamp(1.8rem,3.5vw,2.8rem);
  line-height: 1.15;
  margin-bottom: 1rem;
}
.cta-sub { font-size: 1.05rem; color: var(--ink-mute); margin-bottom: 2rem; }
.cta-actions { display: flex; justify-content: center; }

/* =============================================================
   15. Contact
   ============================================================= */
.contact-section { background: var(--bg-2); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
.contact-info h2 {
  font-size: clamp(1.7rem,3vw,2.5rem);
  margin: .5rem 0 1rem;
}
.contact-info h2 em { color: var(--secondary); font-style: italic; }
.contact-info > p { font-size: .95rem; color: var(--ink-mute); max-width: 380px; margin-bottom: 1.75rem; line-height: 1.7; }
.contact-list { display: flex; flex-direction: column; gap: .75rem; margin-bottom: 1.75rem; }
.contact-link {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .9rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color .2s;
}
.contact-link svg { color: var(--secondary); flex-shrink: 0; }
.contact-link:hover { color: var(--secondary); }
.contact-cta-btns { display: flex; flex-wrap: wrap; gap: .75rem; }

/* Form */
.contact-form {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.form-row { display: grid; grid-template-columns: 1fr; gap: 1.1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-size: .8rem; font-weight: 600; color: var(--ink); letter-spacing: .01em; }
.form-group input,
.form-group textarea {
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: .7rem .9rem;
  font: inherit;
  font-size: .9rem;
  color: var(--ink);
  background: var(--bg);
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-mute); }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}
.form-btn { align-self: flex-start; padding: .8rem 1.6rem; }
.form-status {
  padding: 1rem;
  border-radius: 10px;
  font-size: .875rem;
  font-weight: 500;
  line-height: 1.5;
}
.form-status[hidden] { display: none; }
.form-status--ok {
  background: rgba(79,70,229,.07);
  border: 1px solid rgba(79,70,229,.2);
  color: var(--secondary);
}
.form-status--error {
  background: rgba(220,38,38,.07);
  border: 1px solid rgba(220,38,38,.25);
  color: #b91c1c;
}

/* =============================================================
   16. Footer
   ============================================================= */
.footer {
  background: var(--ink);
  color: rgba(255,255,255,.7);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-block: 3.5rem;
}
.footer-brand .nav-logo { margin-bottom: .875rem; display: flex; }
.footer-brand .logo-evolucion { color: #fff; }
.footer-brand .logo-ia { color: #818CF8; }
.footer-brand .logo-labs { color: rgba(255,255,255,.5); }
.footer-brand p { font-size: .875rem; line-height: 1.65; max-width: 280px; margin-bottom: 1.25rem; }
.footer-social { display: flex; gap: .75rem; }
.footer-social a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 8px;
  color: rgba(255,255,255,.6);
  transition: all .2s;
}
.footer-social a:hover { border-color: rgba(255,255,255,.4); color: #fff; background: rgba(255,255,255,.05); }
.footer-col h4 { font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: rgba(255,255,255,.4); margin-bottom: 1rem; }
.footer-col ul { display: flex; flex-direction: column; gap: .5rem; }
.footer-col a { font-size: .875rem; color: rgba(255,255,255,.55); transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); }
.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  padding-block: 1.25rem;
}
.footer-bottom p { font-size: .8rem; color: rgba(255,255,255,.4); }
.footer-legal { display: flex; gap: 1.25rem; }
.footer-legal a { font-size: .8rem; color: rgba(255,255,255,.35); transition: color .2s; }
.footer-legal a:hover { color: rgba(255,255,255,.7); }

/* =============================================================
   17. Reveal animations
   ============================================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Safety: reveal[data-split] must not stay invisible */
.reveal[data-split] { opacity: 1; transform: none; }

/* =============================================================
   18. Responsive — 540px
   ============================================================= */
@media (min-width: 540px) {
  .why-grid { grid-template-columns: repeat(2,1fr); }
  .plans-grid { grid-template-columns: repeat(2,1fr); }
  .form-row { grid-template-columns: repeat(2,1fr); }
}

/* =============================================================
   19. Responsive — 720px
   ============================================================= */
@media (min-width: 720px) {
  .hero-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .hero-visual { display: block; }
  .services-grid { grid-template-columns: repeat(3,1fr); }
  .portfolio-grid { grid-template-columns: repeat(3,1fr); }
  .stats-grid { grid-template-columns: repeat(4,1fr); }
  .faq-container { grid-template-columns: 1fr 2fr; align-items: start; }
  .contact-grid { grid-template-columns: 1fr 1fr; align-items: start; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .process-timeline { grid-template-columns: repeat(2,1fr); gap: 0; column-gap: 3rem; }
}

/* =============================================================
   20. Responsive — 960px
   ============================================================= */
@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-hamburger { display: none; }
  .why-grid { grid-template-columns: repeat(4,1fr); }
  .hero-inner { grid-template-columns: 1fr 1fr; gap: 4rem; }
}

/* =============================================================
   21. Responsive — 1280px
   ============================================================= */
@media (min-width: 1280px) {
  .hero-content { max-width: 600px; }
  .browser-mockup { max-width: 520px; }
}

/* =============================================================
   22. Reduced-motion (intrusive only)
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .hero-mesh { animation: none; }
  .browser-mockup { animation: none; }
  .float-tag, .float-tag--1, .float-tag--2, .float-tag--3 { animation: none; }
  @keyframes meshDrift { to {} }
}