/* ============================================================
   GROWTH — Agencia Digital
   styles.css
============================================================ */

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

:root {
  --bg:        #0c0c0c;
  --bg-card:   #141414;
  --bg-hover:  #1a1a1a;
  --border:    rgba(255,255,255,0.07);
  --white:     #ffffff;
  --muted:     rgba(255,255,255,0.45);
  --accent:    #e8e8e8;
  --serif:     'DM Serif Display', Georgia, serif;
  --sans:      'DM Sans', Helvetica, sans-serif;
  --radius:    12px;
  --max:       1200px;
  --transition: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

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

::selection {
  background: rgba(255,255,255,0.15);
}

/* ============================================================
   SCROLL REVEAL
============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s var(--transition), transform 0.75s var(--transition);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-28px);
  transition: opacity 0.75s var(--transition), transform 0.75s var(--transition);
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================================
   NOISE OVERLAY
============================================================ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.018;
  pointer-events: none;
  z-index: 9999;
}

/* ============================================================
   NAVBAR
============================================================ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  height: 72px;
  background: rgba(12, 12, 12, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 28px;
  width: auto;
  display: block;
  mix-blend-mode: screen;
  filter: brightness(1);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
  font-weight: 400;
}

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

.nav-cta {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  padding: 0.55rem 1.4rem;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 40px;
  color: var(--white);
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.nav-cta:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.5);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  position: fixed;
  inset: 72px 0 0 0;
  background: var(--bg);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  color: var(--white);
}

/* ============================================================
   HERO
============================================================ */
#hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px clamp(1.5rem, 7vw, 7rem) 100px;
  position: relative;
  overflow: hidden;
}

/* Subtle gradient orb */
#hero::after {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 65%);
  pointer-events: none;
}

.hero-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 30px;
  height: 1px;
  background: var(--muted);
}

.hero-title {
  font-family: var(--serif);
  font-size: clamp(3.2rem, 8vw, 7.5rem);
  line-height: 1.0;
  letter-spacing: -0.03em;
  max-width: 900px;
  margin-bottom: 2rem;
}

.hero-title em {
  font-style: italic;
  color: var(--accent);
}

.hero-subtitle {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--muted);
  max-width: 420px;
  line-height: 1.7;
  margin-bottom: 3rem;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--white);
  color: var(--bg);
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  border-radius: 40px;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform 0.2s ease, opacity var(--transition);
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

.btn-ghost {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-ghost:hover { color: var(--white); }

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: clamp(1.5rem, 7vw, 7rem);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); transform-origin: top; }
}

/* ============================================================
   SECTION BASE
============================================================ */
section {
  padding: clamp(5rem, 10vw, 9rem) clamp(1.5rem, 7vw, 7rem);
}

.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--muted);
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.025em;
  max-width: 640px;
  margin-bottom: 1rem;
}

.section-title em { font-style: italic; }

.section-desc {
  color: var(--muted);
  font-size: 1rem;
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: 4rem;
}

.divider {
  height: 1px;
  background: var(--border);
}

/* ============================================================
   SERVICES
============================================================ */
#servicios {
  border-top: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-card {
  background: var(--bg-card);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: background var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  background: var(--bg-hover);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition: border-color var(--transition), color var(--transition);
}

.service-card:hover .service-icon {
  border-color: rgba(255,255,255,0.2);
  color: var(--white);
}

.service-icon svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.4;
}

.service-name {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.service-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.7;
  flex: 1;
}

.service-arrow {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--transition), transform var(--transition), color var(--transition);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.service-card:hover .service-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--white);
}

/* ============================================================
   PROCESS
============================================================ */
#proceso {
  border-top: 1px solid var(--border);
}

.process-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  margin-bottom: 5rem;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

/* Connecting line */
.process-steps::before {
  content: '';
  position: absolute;
  top: 26px;
  left: calc(12.5% + 8px);
  right: calc(12.5% + 8px);
  height: 1px;
  background: var(--border);
  z-index: 0;
}

.step {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.step:first-child { padding-left: 0; }
.step:last-child  { padding-right: 0; }

.step-num {
  width: 52px;
  height: 52px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--bg);
  font-weight: 400;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.step:hover .step-num {
  border-color: rgba(255,255,255,0.3);
  color: var(--white);
  background: var(--bg-hover);
}

.step-title {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.step-desc {
  font-size: 0.87rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ============================================================
   ABOUT
============================================================ */
#nosotros {
  border-top: 1px solid var(--border);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-visual {
  aspect-ratio: 4/5;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}

/* Abstract grid pattern */
.about-visual::before {
  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: 40px 40px;
}

.about-visual-content {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  right: 2rem;
}

.about-stat {
  font-family: var(--serif);
  font-size: 4.5rem;
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(255,255,255,0.08);
  font-style: italic;
}

.about-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 0.5rem;
}

.about-text h2 {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 1.75rem;
}

.about-text h2 em { font-style: italic; }

.about-text p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.85;
  margin-bottom: 1rem;
}

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 2.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.pillar {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  transition: background var(--transition), color var(--transition);
}

.pillar:last-child { border-bottom: none; }
.pillar:hover { background: var(--bg-hover); color: var(--white); }

.pillar-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
  transition: background var(--transition);
}

.pillar:hover .pillar-dot {
  background: rgba(255,255,255,0.5);
}

/* ============================================================
   CTA SECTION
============================================================ */
#contacto {
  border-top: 1px solid var(--border);
  text-align: center;
}

.cta-inner {
  max-width: 700px;
  margin: 0 auto;
}

.cta-inner .section-label {
  justify-content: center;
}

.cta-inner .section-label::before { display: none; }

.cta-title {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5.5vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.cta-title em { font-style: italic; }

.cta-subtitle {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 3rem;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.cta-email {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
}
.cta-email:hover { color: var(--white); }

/* ============================================================
   FOOTER
============================================================ */
footer {
  border-top: 1px solid var(--border);
  padding: 3rem clamp(1.5rem, 7vw, 7rem);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer-logo {
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--white);
  font-style: italic;
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
}

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

.footer-copy {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.2);
  letter-spacing: 0.05em;
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 900px) {
  .process-steps {
    grid-template-columns: 1fr 1fr;
    gap: 3rem 2rem;
  }
  .process-steps::before { display: none; }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-visual {
    aspect-ratio: 16/7;
  }
}

@media (max-width: 680px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .step { padding: 0; }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
  }
}