/* ============================================================
   BRUNO DANGELO — styles.css
   Sistema de diseño + layout + componentes
   Sin Tailwind. CSS puro con custom properties.
   ============================================================ */

/* ── 1. RESET ────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

/* ── 2. TOKENS ───────────────────────────────────────────── */
:root {
  /* Colores */
  --obsidian:          #0A0A0A;
  --surface:           #141414;
  --surface-hover:     #1C1C1C;
  --surface-low:       #1C1B1B;
  --surface-container: #201F1F;
  --surface-high:      #2A2A2A;
  --accent:            #F5F5F5;
  --muted:             rgba(245, 245, 245, 0.6);
  --border:            rgba(255, 255, 255, 0.10);
  --border-hover:      rgba(255, 255, 255, 0.20);
  --outline:           #444748;

  /* Gradiente stats */
  --gradient-stats: linear-gradient(135deg, #4E89EE 0%, #9B72CB 50%, #D96570 100%);

  /* Tipografías */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* Espaciado */
  --container:    1280px;
  --gutter:       2rem;
  --edge:         4rem;
  --section-gap:  10rem;
}

/* ── 3. BODY ─────────────────────────────────────────────── */
body {
  background-color: var(--obsidian);
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── 4. REDUCED MOTION ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .audit-bar {
    animation: none !important;
    width: var(--bar-width) !important;
  }
}

/* ── 5. SKIP LINK ────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--accent);
  color: var(--obsidian);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.6rem 1.25rem;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 1rem;
  outline: 2px solid var(--obsidian);
  outline-offset: 2px;
}

/* ── 6. TIPOGRAFÍA HELPER ────────────────────────────────── */
.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow-link {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.eyebrow-link:hover { color: var(--accent); }
.eyebrow-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(26px, 4.5vw, 40px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.body-lg {
  font-size: 18px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0;
}

.text-muted { color: var(--muted); }
.text-center { text-align: center; }

/* Gradiente en texto (stats, visual audit) */
.gradient-text {
  background: var(--gradient-stats);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── 7. CONTAINER ────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--edge);
}

/* ── 8. BOTONES ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  border-radius: 0;
  cursor: pointer;
  padding: 1rem 2rem;
  white-space: nowrap;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--obsidian);
}
.btn-primary:hover { background-color: #e2e2e2; }

.btn-secondary {
  background-color: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--border-hover);
  background-color: var(--surface-hover);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-full { width: 100%; }

/* ── 9. HEADER / NAV ─────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin-inline: auto;
  padding: 1.5rem var(--edge);
}

.nav-brand {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  text-decoration: none;
  flex-shrink: 0;
}
.nav-brand:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

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

.nav-link {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--accent); }
.nav-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 16px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}
.nav-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.nav-mobile {
  display: none;
  padding: 1.5rem 1.25rem 2rem;
  border-top: 1px solid var(--border);
  background: rgba(10, 10, 10, 0.97);
}
.nav-mobile.is-open { display: block; }
.nav-mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.nav-mobile .nav-link {
  display: block;
  font-size: 14px;
  padding: 0.25rem 0;
}

/* ── 10. SCROLL REVEALS ──────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger dentro de grids */
.stats-grid .reveal:nth-child(1),
.services-grid .reveal:nth-child(1),
.cases-grid .reveal:nth-child(1),
.blog-grid .reveal:nth-child(1),
.testimonials-list .reveal:nth-child(1) { transition-delay: 0ms; }

.stats-grid .reveal:nth-child(2),
.services-grid .reveal:nth-child(2),
.cases-grid .reveal:nth-child(2),
.blog-grid .reveal:nth-child(2),
.testimonials-list .reveal:nth-child(2) { transition-delay: 100ms; }

.stats-grid .reveal:nth-child(3),
.blog-grid .reveal:nth-child(3) { transition-delay: 200ms; }

.stats-grid .reveal:nth-child(4) { transition-delay: 300ms; }

/* ── 11. ORNAMENTOS DECORATIVOS ──────────────────────────── */
.ornament {
  position: absolute;
  width: 96px;
  height: 96px;
  pointer-events: none;
}
.ornament--br {
  bottom: -16px;
  right: -16px;
  border-bottom: 1px solid rgba(245, 245, 245, 0.18);
  border-right: 1px solid rgba(245, 245, 245, 0.18);
}
.ornament--tl {
  top: -16px;
  left: -16px;
  border-top: 1px solid rgba(245, 245, 245, 0.18);
  border-left: 1px solid rgba(245, 245, 245, 0.18);
}
.ornament--tr {
  top: -16px;
  right: -16px;
  border-top: 1px solid rgba(245, 245, 245, 0.18);
  border-right: 1px solid rgba(245, 245, 245, 0.18);
}
.ornament--bl {
  bottom: -16px;
  left: -16px;
  border-bottom: 1px solid rgba(245, 245, 245, 0.18);
  border-left: 1px solid rgba(245, 245, 245, 0.18);
}

/* ── 12. SECCIÓN: HERO ───────────────────────────────────── */
.section-hero {
  padding-block: var(--section-gap);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 4rem;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--edge);
}

.hero-text { flex: 1; }

.hero-text .eyebrow { margin-bottom: 1.5rem; }

.hero-title {
  font-size: clamp(36px, 7vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero-body {
  font-size: 18px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 540px;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

/* Hero image */
.hero-image-wrap {
  flex: 0 0 380px;
  max-width: 380px;
  position: relative;
}

.hero-image-frame {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface-container);
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  filter: grayscale(15%);
  transition: filter 0.6s ease;
}
.hero-image-frame:hover .hero-img { filter: grayscale(0%); }

/* ── 13. SECCIÓN: STATS ──────────────────────────────────── */
.section-stats {
  background-color: #0E0E0E;
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: var(--container);
  margin-inline: auto;
  padding: 5rem var(--edge);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-value {
  font-family: var(--font-sans);
  font-size: clamp(36px, 5vw, 48px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── 14. SECCIÓN: WHAT I DO ──────────────────────────────── */
.section-dotted {
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='rgba(255,255,255,0.03)' stroke-width='0.5'%3E%3Ccircle cx='10' cy='10' r='1' fill='rgba(255,255,255,0.03)'/%3E%3Ccircle cx='50' cy='30' r='1' fill='rgba(255,255,255,0.03)'/%3E%3Ccircle cx='90' cy='10' r='1' fill='rgba(255,255,255,0.03)'/%3E%3Ccircle cx='30' cy='70' r='1' fill='rgba(255,255,255,0.03)'/%3E%3Ccircle cx='70' cy='80' r='1' fill='rgba(255,255,255,0.03)'/%3E%3Cline x1='10' y1='10' x2='50' y2='30'/%3E%3Cline x1='50' y1='30' x2='90' y2='10'/%3E%3Cline x1='50' y1='30' x2='30' y2='70'/%3E%3Cline x1='30' y1='70' x2='70' y2='80'/%3E%3Cline x1='70' y1='80' x2='50' y2='30'/%3E%3Cline x1='10' y1='10' x2='30' y2='70'/%3E%3C/g%3E%3C/svg%3E");
}

.section-whatido {
  padding-block: var(--section-gap);
}

.whatido-layout {
  display: flex;
  gap: var(--gutter);
}

.whatido-sticky {
  flex: 0 0 33.333%;
}

.sticky-title {
  position: sticky;
  top: 7rem;
}

.whatido-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

/* ── 15. CARDS ───────────────────────────────────────────── */
.card {
  background: var(--surface-container);
  border: 1px solid var(--border);
  padding: 2rem;
  transition: border-color 0.2s, background-color 0.2s;
}
.card:hover {
  border-color: var(--border-hover);
  background-color: var(--surface-hover);
}

.card-icon {
  color: var(--accent);
  margin-bottom: 1rem;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.card-body {
  font-size: 15px;
  line-height: 1.6;
}

/* ── 16. SECCIÓN: AUDIT ──────────────────────────────────── */
.section-audit {
  background-color: var(--surface-low);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: var(--section-gap);
}

.audit-layout {
  display: flex;
  align-items: center;
  gap: 5rem;
}

.audit-text { flex: 1; }
.audit-text .section-title { margin-bottom: 1.5rem; }
.audit-text .body-lg { margin-bottom: 2.5rem; }

.audit-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.audit-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  color: var(--accent);
  font-size: 16px;
  line-height: 1.5;
}

.check-icon { flex-shrink: 0; }

.audit-visual {
  flex: 0 0 400px;
  max-width: 400px;
  position: relative;
}

.audit-card {
  background: linear-gradient(135deg, var(--surface-high), var(--surface-container));
  border: 1px solid var(--border);
  padding: 2.5rem;
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3rem;
}

.audit-bars {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.audit-bar-wrap {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 3px;
  overflow: hidden;
}

.audit-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 3px;
  animation: bar-grow 1.6s ease forwards;
  animation-play-state: paused;
}

.audit-visual.is-visible .audit-bar {
  animation-play-state: running;
}

.audit-bar:nth-child(1) { animation-delay: 0.1s; }
.audit-bar:nth-child(2) { animation-delay: 0.3s; }
.audit-bar:nth-child(3) { animation-delay: 0.5s; }

@keyframes bar-grow {
  from { width: 0%; }
  to   { width: var(--bar-width, 0%); }
}

.audit-card-label {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}

/* ── 17. SECCIÓN: CASOS ──────────────────────────────────── */
.section-cases {
  padding-block: var(--section-gap);
}
.section-cases .section-title { margin-bottom: 4rem; }

.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.case-image-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  margin-bottom: 2rem;
  overflow: hidden;
  background: var(--surface-container);
  border: 1px solid var(--border);
  transition: border-color 0.3s;
}
.case-item:hover .case-image-wrap { border-color: var(--border-hover); }

/* Placeholder — reemplazá con <img> cuando tengas screenshots */
.case-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-high) 100%);
}
.case-image-placeholder .eyebrow { opacity: 0.35; }

/* Si usás una imagen real: */
.case-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.7s ease, transform 0.7s ease;
}
.case-item:hover .case-image-wrap img {
  filter: grayscale(0%);
  transform: scale(1.04);
}

.case-badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--accent);
  color: var(--obsidian);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.4rem 0.75rem;
}

.case-title {
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--accent);
  margin-bottom: 0.875rem;
}

.case-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.metric-value {
  font-family: var(--font-sans);
  font-size: clamp(28px, 3.5vw, 36px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.4;
}

/* ── 18. SECCIÓN: TESTIMONIOS ────────────────────────────── */
.section-testimonials {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: var(--section-gap);
  overflow: hidden;
}

.testimonials-layout {
  display: flex;
  gap: 5rem;
}

.testimonials-intro {
  flex: 0 0 33.333%;
}
.testimonials-intro .section-title { margin-bottom: 1rem; }

.testimonials-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.testimonial {
  border-left: 2px solid var(--accent);
  padding: 0.75rem 0 0.75rem 2rem;
}

.testimonial-text {
  font-size: 18px;
  line-height: 1.65;
  font-style: italic;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.testimonial-footer {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.testimonial-name {
  font-style: normal;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--accent);
}

/* ── 19. SECCIÓN: BLOG ───────────────────────────────────── */
.section-blog {
  padding-block: var(--section-gap);
}

.blog-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 3.5rem;
  gap: 1rem;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.blog-card {
  background: var(--surface-container);
  border: 1px solid var(--border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: border-color 0.2s;
}
.blog-card:hover { border-color: var(--accent); }

.blog-card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--accent);
}

.blog-card-link {
  display: inline-flex;
  align-items: center;
  color: var(--accent);
  margin-top: auto;
  text-decoration: none;
  transition: transform 0.2s;
}
.blog-card-link:hover { transform: translateX(4px); }
.blog-card-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ── 20. SECCIÓN: CONTACTO ───────────────────────────────── */
.section-contact {
  background: var(--surface-high);
  border-top: 1px solid var(--border);
  padding-block: var(--section-gap);
}

.contact-layout {
  display: flex;
  gap: 5rem;
}

.contact-intro { flex: 1; }
.contact-intro .section-title { margin-bottom: 1.5rem; }
.contact-intro .body-lg { margin-bottom: 2.5rem; }

.contact-info {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  color: var(--accent);
}

.contact-form-wrap { flex: 1; }

/* Formulario */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

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

.form-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-input {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: 16px;
  padding: 0.875rem 0;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}
.form-input::placeholder { color: rgba(245, 245, 245, 0.25); }
.form-input:focus { border-bottom-color: var(--accent); }

.form-textarea {
  resize: none;
  line-height: 1.6;
}

.form-status {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  min-height: 1.5em;
  padding-top: 0.25rem;
}
.form-status.success { color: #4E89EE; }
.form-status.error   { color: #D96570; }

/* ── 21. FOOTER ──────────────────────────────────────────── */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-block: var(--section-gap);
  gap: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 260px;
}

.footer-nav {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.footer-nav-col {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}
.footer-nav-col .eyebrow { margin-bottom: 0.35rem; }

.footer-link {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
  line-height: 1;
}
.footer-link:hover { color: var(--accent); }
.footer-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.footer-bottom {
  padding-block: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0.55;
}

/* ── 22. RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 1100px) {
  .hero-image-wrap { flex: 0 0 320px; max-width: 320px; }
  .audit-visual    { flex: 0 0 340px; max-width: 340px; }
}

@media (max-width: 900px) {
  :root {
    --edge:        1.5rem;
    --section-gap: 6rem;
  }

  /* Nav */
  .nav-inner    { padding: 1rem 1.25rem; }
  .nav-links    { display: none; }
  .nav-cta      { display: none; }
  .nav-toggle   { display: flex; }

  /* Hero */
  .hero-inner {
    flex-direction: column;
    padding-inline: 1.25rem;
    text-align: center;
    gap: 3rem;
  }
  .hero-body   { margin-inline: auto; }
  .hero-ctas   { justify-content: center; }
  .hero-image-wrap {
    flex: none;
    width: 100%;
    max-width: 300px;
    margin-inline: auto;
  }

  /* What I Do */
  .whatido-layout   { flex-direction: column; gap: 2rem; }
  .whatido-sticky   { flex: none; }
  .sticky-title     { position: static; }

  /* Audit */
  .audit-layout {
    flex-direction: column;
    gap: 3rem;
  }
  .audit-visual {
    flex: none;
    width: 100%;
    max-width: 100%;
  }
  .audit-card { aspect-ratio: unset; min-height: 280px; }

  /* Testimonios */
  .testimonials-layout { flex-direction: column; gap: 2rem; }
  .testimonials-intro  { flex: none; }
}

@media (max-width: 768px) {
  :root {
    --edge:        1.25rem;
    --section-gap: 5rem;
  }

  /* Stats */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    padding: 3rem 1.25rem;
    gap: 1.5rem;
  }

  /* Cases */
  .cases-grid { grid-template-columns: 1fr; gap: 3rem; }

  /* Blog */
  .blog-grid        { grid-template-columns: 1fr; }
  .blog-header      { flex-direction: column; align-items: flex-start; gap: 0.5rem; }

  /* Contact */
  .contact-layout { flex-direction: column; gap: 3rem; }
  .form-row       { grid-template-columns: 1fr; gap: 1.5rem; }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    padding-block: 3.5rem;
    gap: 2.5rem;
  }
  .footer-brand  { max-width: 100%; }
  .footer-nav    { gap: 2rem; }
}

@media (max-width: 480px) {
  .services-grid  { grid-template-columns: 1fr; }
  .case-metrics   { grid-template-columns: 1fr; gap: 1.25rem; }
  .hero-ctas      { flex-direction: column; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
}