/* =========================================================
   Rafa García Juanicó — Premium tech aesthetic (Linear/Vercel)
   ========================================================= */

:root {
  --bg: #0A0A0B;
  --bg-1: #111114;
  --bg-2: #18181C;
  --bg-3: #1F1F25;

  --ink: #FAFAFA;
  --ink-1: #D4D4D8;
  --ink-2: #A1A1AA;
  --ink-3: #71717A;
  --ink-4: #52525B;

  --line: rgba(255, 255, 255, 0.06);
  --line-1: rgba(255, 255, 255, 0.10);
  --line-2: rgba(255, 255, 255, 0.18);
  --line-3: rgba(255, 255, 255, 0.30);

  --accent: #4F8BFF;
  --accent-soft: rgba(79, 139, 255, 0.12);
  --grad-1: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #EC4899 100%);
  --grad-mesh: radial-gradient(60% 50% at 80% 0%, rgba(99, 102, 241, 0.18) 0%, transparent 60%),
               radial-gradient(50% 50% at 10% 20%, rgba(236, 72, 153, 0.10) 0%, transparent 60%),
               radial-gradient(40% 40% at 50% 100%, rgba(79, 139, 255, 0.10) 0%, transparent 60%);

  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 0 0 rgba(255,255,255,0.05) inset;
  --shadow-md: 0 8px 30px -12px rgba(0,0,0,0.6), 0 1px 0 0 rgba(255,255,255,0.05) inset;
  --shadow-lg: 0 24px 80px -24px rgba(0,0,0,0.8), 0 1px 0 0 rgba(255,255,255,0.06) inset;

  --font-sans: 'Geist', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --container: 1200px;
  --container-tight: 920px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.011em;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

::selection { background: var(--ink); color: var(--bg); }

.mono { font-family: var(--font-mono); font-feature-settings: "ss01"; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1.25rem, 4vw, 2.5rem);
  background: rgba(10, 10, 11, 0.6);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, background .25s;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(10, 10, 11, 0.85);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.logo__mark {
  display: inline-flex;
  width: 30px; height: 30px;
  color: var(--ink);
  transition: opacity .2s, transform .2s;
}
.logo:hover .logo__mark { opacity: 0.85; transform: scale(0.96); }
.logo__mark img,
.logo__mark svg { width: 100%; height: 100%; display: block; object-fit: contain; }
.logo__name { font-size: 0.95rem; }
.logo__name em { font-style: normal; color: var(--ink-3); margin-left: .35rem; }

.nav {
  display: flex;
  gap: 1.75rem;
  font-size: 0.92rem;
  color: var(--ink-2);
}
.nav a {
  position: relative;
  padding: .25rem 0;
  transition: color .2s;
}
.nav a:hover { color: var(--ink); }

.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid var(--line-1);
  border-radius: 8px;
}
.nav__toggle span {
  display: block;
  width: 16px; height: 1.5px;
  background: var(--ink-1);
  transition: transform .25s, opacity .2s;
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem clamp(1.25rem, 4vw, 2.5rem) 1.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  font-size: 1.1rem;
  font-weight: 500;
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a { padding: .85rem 0; border-bottom: 1px solid var(--line); color: var(--ink-1); }
.mobile-menu a:last-child { border-bottom: 0; }
.mobile-menu .btn { margin-top: 1rem; align-self: flex-start; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem 1.05rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.92rem;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn--primary {
  background: var(--ink);
  color: var(--bg);
}
.btn--primary:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px -8px rgba(255, 255, 255, 0.25);
}
.btn--ghost {
  background: rgba(255, 255, 255, 0.02);
  color: var(--ink);
  border-color: var(--line-1);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--line-2);
}
.btn--lg { padding: .85rem 1.4rem; font-size: 1rem; border-radius: 10px; }
.btn--block { width: 100%; justify-content: center; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(2px); }

/* Hero */
.hero {
  position: relative;
  padding: clamp(5rem, 12vw, 9rem) clamp(1.25rem, 4vw, 2.5rem) clamp(5rem, 12vw, 9rem);
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-mesh);
  z-index: -2;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, transparent 60%, var(--bg) 100%),
    repeating-linear-gradient(0deg, transparent 0, transparent 39px, rgba(255,255,255,0.025) 39px, rgba(255,255,255,0.025) 40px),
    repeating-linear-gradient(90deg, transparent 0, transparent 39px, rgba(255,255,255,0.025) 39px, rgba(255,255,255,0.025) 40px);
  z-index: -1;
  pointer-events: none;
  mask: radial-gradient(60% 60% at 50% 30%, #000 0%, transparent 80%);
  -webkit-mask: radial-gradient(60% 60% at 50% 30%, #000 0%, transparent 80%);
}
.hero__inner {
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .35rem .75rem .35rem .55rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-1);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink-1);
  margin: 0 0 2rem;
}
.eyebrow .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22C55E;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18); }
  50% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

.hero__title {
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin: 0 0 1.5rem;
  max-width: 980px;
  background: linear-gradient(180deg, #FFFFFF 0%, #C2C2C8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__title .em {
  font-style: italic;
  font-weight: 500;
  background: linear-gradient(135deg, #A1A1AA 0%, #4F8BFF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  max-width: 620px;
  color: var(--ink-2);
  margin: 0 0 2.5rem;
  line-height: 1.55;
}

.hero__ctas {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  max-width: 720px;
  border-top: 1px solid var(--line);
  padding-top: 1.75rem;
}
.hero__stats li { display: flex; flex-direction: column; gap: .35rem; }
.hero__stats strong {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
}
.hero__stats span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.01em;
  color: var(--ink-3);
  text-transform: uppercase;
}

/* Sections shared */
.section {
  padding: clamp(5rem, 10vw, 8rem) clamp(1.25rem, 4vw, 2.5rem);
  max-width: var(--container);
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
.section:last-of-type { border-bottom: 0; }
.section__head { margin-bottom: clamp(2.5rem, 5vw, 4rem); max-width: var(--container-tight); }
.section__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
}
.section__title {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin: 0;
  max-width: 880px;
  color: var(--ink);
}
.section__title em {
  font-style: italic;
  font-weight: 400;
  color: var(--ink-3);
}
.section__lead {
  margin-top: 1.25rem;
  color: var(--ink-2);
  font-size: 1.05rem;
  max-width: 640px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.about-text p {
  font-size: 1.05rem;
  margin: 0 0 1.25rem;
  color: var(--ink-2);
  line-height: 1.65;
  max-width: 580px;
}
.about-text strong { color: var(--ink); font-weight: 500; }
.bullets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 2rem;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.bullets li {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: 1rem 1.2rem;
  background: var(--bg);
  font-size: 0.92rem;
  color: var(--ink-1);
  font-weight: 500;
}
.bullets li::before {
  content: '';
  display: block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--ink-2), transparent 70%);
  border: 1px solid var(--line-2);
}

/* Portrait card */
.about-portrait {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: calc(64px + 1rem);
}
.portrait {
  position: relative;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-1);
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.06), transparent 60%),
    linear-gradient(135deg, var(--bg-2) 0%, var(--bg-1) 100%);
  aspect-ratio: 1 / 1;
  box-shadow: var(--shadow-md);
}
.portrait:not(:has(img))::after {
  content: 'Retrato pendiente';
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: contrast(1.02);
}
.portrait::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.55) 100%);
  z-index: 1;
  pointer-events: none;
}
.portrait__cap {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 1.1rem;
  font-size: 0.85rem;
  color: var(--ink);
  gap: 1rem;
}
.portrait__cap .mono {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
.portrait-quote {
  margin: 0;
  padding: 1.25rem 1.25rem 1.25rem 1.5rem;
  border-left: 1px solid var(--line-2);
  color: var(--ink-1);
  font-size: 1.02rem;
  line-height: 1.45;
  font-style: italic;
}
.portrait-quote p { margin: 0; }
.portrait-quote::before {
  content: '“';
  display: inline-block;
  margin-right: .25rem;
  color: var(--ink-3);
  font-size: 1.2em;
  line-height: 0;
  vertical-align: -0.05em;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.service-card {
  --c: var(--accent);
  position: relative;
  padding: clamp(1.5rem, 2.5vw, 2rem);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  cursor: pointer;
  transition: background .25s;
  outline: none;
  grid-column: span 2;
}
/* 3 cards on the top row, 2 wider cards on the bottom row */
.service-card:nth-child(n+4) { grid-column: span 3; }
.service-card:hover,
.service-card:focus-visible { background: var(--bg-1); }

@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card,
  .service-card:nth-child(n+4) { grid-column: span 1; }
}
@media (max-width: 640px) {
  .services-grid { grid-template-columns: 1fr; }
  .service-card,
  .service-card:nth-child(n+4) { grid-column: 1; }
}

.service-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}
.service-card__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.service-card__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink-4);
}
.service-card h3 {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  margin: 0;
  color: var(--ink);
  position: relative;
}
.service-card p {
  color: var(--ink-2);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  position: relative;
  max-width: 56ch;
}
.service-card a { color: var(--ink); border-bottom: 1px solid var(--line-2); }
.service-card a:hover { border-bottom-color: var(--ink); }

.service-card ul {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  font-size: 0.88rem;
  color: var(--ink-2);
  position: relative;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  margin-top: auto;
}
.service-card ul li {
  display: flex;
  gap: .65rem;
  align-items: baseline;
}
.service-card ul li::before {
  content: '';
  display: block;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--ink-3);
  flex-shrink: 0;
  transform: translateY(-3px);
}

.service-card__more {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  align-self: flex-start;
  position: relative;
  transition: color .2s;
}
.service-card:hover .service-card__more,
.service-card:focus-visible .service-card__more { color: var(--ink); }
.service-card__more svg { transition: transform .2s; }
.service-card:hover .service-card__more svg { transform: translateX(2px); }

/* Process */
.section--process .process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.process li {
  background: var(--bg);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  position: relative;
}
.process__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ink-4);
  text-transform: uppercase;
}
.process h3 {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}
.process p { color: var(--ink-2); margin: 0; font-size: 0.92rem; line-height: 1.55; }

@media (max-width: 900px) {
  .section--process .process { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .section--process .process { grid-template-columns: 1fr; }
}

/* CTA banner */
.cta-banner {
  position: relative;
  padding: clamp(4rem, 9vw, 7rem) clamp(1.25rem, 4vw, 2.5rem);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  isolation: isolate;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(50% 50% at 50% 0%, rgba(99, 102, 241, 0.18) 0%, transparent 60%),
    radial-gradient(40% 40% at 30% 100%, rgba(236, 72, 153, 0.10) 0%, transparent 60%),
    radial-gradient(40% 40% at 70% 100%, rgba(79, 139, 255, 0.10) 0%, transparent 60%);
  z-index: -1;
}
.cta-banner h2 {
  font-size: clamp(1.8rem, 4.5vw, 3.2rem);
  font-weight: 600;
  margin: 0;
  line-height: 1.05;
  letter-spacing: -0.035em;
  max-width: 800px;
  background: linear-gradient(180deg, #FFFFFF 0%, #B5B5BC 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Contact */
.section--contact { padding-bottom: clamp(5rem, 10vw, 8rem); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(2rem, 5vw, 5rem);
}
.contact-info__lead {
  font-size: 1.05rem;
  color: var(--ink-2);
  max-width: 460px;
  margin: 1.25rem 0 2rem;
}
.contact-list {
  display: flex;
  flex-direction: column;
  margin-bottom: 2rem;
  border-top: 1px solid var(--line);
}
.contact-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}
.contact-list__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-3);
  align-self: center;
}
.contact-list a, .contact-list span { color: var(--ink-1); transition: color .2s; }
.contact-list a:hover { color: var(--ink); }

.socials {
  display: flex;
  gap: .5rem;
}
.socials a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .55rem .9rem;
  border: 1px solid var(--line-1);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--ink-1);
  transition: all .2s;
}
.socials a:hover { border-color: var(--line-3); color: var(--ink); background: rgba(255,255,255,.03); }
.socials svg { width: 14px; height: 14px; }

.contact-form {
  background: linear-gradient(180deg, var(--bg-1) 0%, var(--bg) 100%);
  border: 1px solid var(--line-1);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.field { display: flex; flex-direction: column; gap: .5rem; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.field input,
.field select,
.field textarea {
  font: inherit;
  background: rgba(255, 255, 255, 0.02);
  color: var(--ink);
  border: 1px solid var(--line-1);
  border-radius: var(--radius-sm);
  padding: .75rem .9rem;
  outline: none;
  transition: border-color .2s, background .2s;
  font-size: 0.95rem;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--ink-4); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--line-3);
  background: rgba(255, 255, 255, 0.04);
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2371717A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: calc(100% - 14px) center;
  padding-right: 2.4rem;
}
.field select option { color: var(--ink); background: var(--bg-1); }
.field textarea { resize: vertical; min-height: 110px; }
.field.is-error input,
.field.is-error select,
.field.is-error textarea { border-color: #EF4444; }

.contact-form .btn--primary { margin-top: .5rem; }
.form__status {
  margin: 0;
  min-height: 1.25rem;
  font-size: 0.85rem;
  text-align: center;
  font-family: var(--font-mono);
  color: var(--ink-3);
}
.form__status.is-success { color: #22C55E; }
.form__status.is-error { color: #EF4444; }

/* Footer */
.site-footer {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.25rem, 4vw, 2.5rem) 2rem;
  border-top: 1px solid var(--line);
}
.site-footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
  max-width: var(--container);
  margin: 0 auto;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line);
}
.site-footer__claim {
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin: 0;
  text-align: right;
  color: var(--ink-2);
}
.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--ink-4);
  text-transform: uppercase;
  max-width: var(--container);
  margin: 0 auto;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .9s ease, transform .9s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
  .nav { display: none; }
  .nav__toggle { display: flex; }
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .site-footer__top { flex-direction: column; align-items: flex-start; }
  .site-footer__claim { text-align: left; }
}
@media (max-width: 540px) {
  .hero__stats { grid-template-columns: repeat(3, 1fr); gap: .75rem; }
  .hero__stats strong { font-size: 1.4rem; }
  .bullets { grid-template-columns: 1fr; }
  .contact-list li { grid-template-columns: 1fr; gap: .25rem; }
  .contact-list__label { font-size: 0.68rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

/* =========================================================
   WhatsApp Floating Button
   ========================================================= */
.wa-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 58px;
  height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: #1DA851;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.35),
    0 2px 4px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.2s ease;
  isolation: isolate;
}

.wa-fab:hover,
.wa-fab:focus-visible {
  transform: translateY(-2px);
  background: #229A4E;
  box-shadow:
    0 12px 26px rgba(0, 0, 0, 0.4),
    0 4px 8px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  outline: none;
}

.wa-fab:focus-visible {
  box-shadow:
    0 0 0 3px rgba(37, 211, 102, 0.4),
    0 12px 26px rgba(0, 0, 0, 0.4);
}

.wa-fab__icon {
  position: relative;
  z-index: 1;
}

.wa-fab__pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #1DA851;
  z-index: -1;
  animation: wa-pulse 2.6s ease-out infinite;
  opacity: 0.45;
}

@keyframes wa-pulse {
  0%   { transform: scale(1);    opacity: 0.45; }
  80%  { transform: scale(1.55); opacity: 0;    }
  100% { transform: scale(1.55); opacity: 0;    }
}

/* Tooltip */
.wa-fab__tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  white-space: nowrap;
  padding: 8px 12px;
  background: var(--bg-2, #18181C);
  color: var(--ink, #fff);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.01em;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.wa-fab__tooltip::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--bg-2, #18181C);
}

.wa-fab:hover .wa-fab__tooltip,
.wa-fab:focus-visible .wa-fab__tooltip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

@media (max-width: 640px) {
  .wa-fab {
    right: 16px;
    bottom: 16px;
    width: 54px;
    height: 54px;
  }
  /* Tooltip is mouse-affordance only; hide on touch */
  .wa-fab__tooltip { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .wa-fab__pulse { animation: none; }
  .wa-fab,
  .wa-fab__tooltip { transition: none; }
}