/* ============================================================
   TH INGENIERÍA S.A.S. — Hoja de estilos
   Sistema: variables CSS, mobile-first, animaciones suaves
   ============================================================ */

:root {
  /* Paleta */
  --c-bg: #f5f8fc;
  --c-bg-alt: #ffffff;
  --c-ink: #0a2540;
  --c-ink-soft: #42576e;
  --c-muted: #6b7a8c;
  --c-line: #e3ebf3;
  --c-primary: #0a2540;
  --c-accent: #00d4ff;
  --c-accent-2: #1b6fa3;
  --c-success: #10b981;

  /* Gradientes */
  --grad-accent: linear-gradient(135deg, #00d4ff 0%, #1b6fa3 100%);
  --grad-text: linear-gradient(135deg, #00d4ff 0%, #0a2540 100%);

  /* Tipografía */
  --ff-display: 'Manrope', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --ff-body: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  /* Espaciado y radios */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 4px 16px rgba(10, 37, 64, 0.06);
  --shadow: 0 10px 40px rgba(10, 37, 64, 0.10);
  --shadow-lg: 0 20px 60px rgba(10, 37, 64, 0.18);

  /* Layout */
  --container: 1200px;
  --gutter: 24px;
}

/* ---------- Reset moderno ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--ff-body);
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; }
input, textarea, select { font: inherit; }

/* ---------- Tipografía ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--ff-display);
  color: var(--c-ink);
  line-height: 1.15;
  letter-spacing: -0.01em;
}
h1 { font-weight: 800; }
h2 { font-weight: 700; }
h3, h4 { font-weight: 700; }

.grad {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.kicker {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-accent-2);
  margin-bottom: 12px;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: clamp(64px, 9vw, 110px) 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-title {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  margin-bottom: 16px;
}
.section-sub {
  color: var(--c-ink-soft);
  font-size: 1.05rem;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform .2s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--c-primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(10, 37, 64, 0.25);
}
.btn-primary:hover {
  background: #0e3a60;
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(10, 37, 64, 0.32);
}
.btn-ghost {
  background: transparent;
  color: var(--c-ink);
  border-color: var(--c-line);
}
.btn-ghost:hover {
  background: var(--c-bg-alt);
  border-color: var(--c-ink);
}
.btn.full { width: 100%; justify-content: center; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 16px 0;
  transition: background .3s ease, box-shadow .3s ease, padding .3s ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  color: var(--c-ink);
}
.site-header .brand-logo {
  width: 92px !important;
  height: 56px !important;
  max-width: 92px !important;
  object-fit: contain;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  position: relative;
  padding: 10px 14px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--c-ink);
  border-radius: 8px;
  transition: color .2s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .25s ease;
}
.nav-link:hover, .nav-link.active { color: var(--c-accent-2); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-cta { margin-left: 8px; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: 10px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--c-ink);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: 140px 0 90px;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, var(--c-bg) 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 37, 64, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 37, 64, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
}
.hero-glow {
  position: absolute;
  top: -120px;
  right: -120px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.18), transparent 70%);
  filter: blur(10px);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(0, 212, 255, 0.10);
  color: var(--c-accent-2);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.eyebrow-dot {
  width: 8px;
  height: 8px;
  background: var(--c-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.18);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.18); }
  50%      { box-shadow: 0 0 0 8px rgba(0, 212, 255, 0.06); }
}
.hero-title {
  margin-top: 18px;
  font-size: clamp(2.2rem, 5.4vw, 3.8rem);
}
.hero-sub {
  margin-top: 18px;
  max-width: 560px;
  color: var(--c-ink-soft);
  font-size: 1.08rem;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--c-line);
}
.hero-stats li { display: flex; flex-direction: column; gap: 2px; }
.hero-stats strong { font-family: var(--ff-display); font-size: 1.6rem; color: var(--c-primary); }
.hero-stats span { font-size: 0.85rem; color: var(--c-muted); }

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 360px;
}
.orb-card {
  position: relative;
  width: 320px;
  height: 320px;
  display: grid;
  place-items: center;
}
.orb-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(10, 37, 64, 0.10);
}
.orb-ring.r1 { inset: 10px; animation: spin 24s linear infinite; }
.orb-ring.r2 { inset: 40px; border-color: rgba(0, 212, 255, 0.30); border-style: dashed; animation: spin 16s linear infinite reverse; }
@keyframes spin { to { transform: rotate(360deg); } }
.orb-core {
  position: relative;
  width: 60%;
  height: 60%;
  background: var(--c-bg-alt);
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
.orb-core svg { width: 60%; height: 60%; }

.floater {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--c-bg-alt);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-primary);
  box-shadow: var(--shadow);
  animation: float 5s ease-in-out infinite;
}
.floater svg { color: var(--c-accent); }
.f-1 { top: 8%;   left: 0%;    animation-delay: 0s; }
.f-2 { top: 50%;  right: -2%;  animation-delay: 1s; }
.f-3 { bottom: 6%; left: 8%;   animation-delay: 2s; }

/* ============================================================
   SERVICIOS
   ============================================================ */
.section-services {
  background: var(--c-bg);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.service-card {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad-accent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity .25s ease;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.service-card:hover::before { opacity: 1; }
.service-card.is-selected {
  border-color: var(--c-accent-2);
  box-shadow: 0 12px 30px rgba(10, 37, 64, 0.12);
}
.service-card.is-selected::before { opacity: 1; }

.service-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: rgba(0, 212, 255, 0.10);
  color: var(--c-accent-2);
  border-radius: 14px;
  margin-bottom: 20px;
}
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.service-card p  { color: var(--c-ink-soft); font-size: 0.97rem; margin-bottom: 18px; }
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  color: var(--c-accent-2);
  font-size: 0.92rem;
  transition: gap .2s ease;
}
.service-link:hover { gap: 10px; }
.service-link:focus-visible,
.service-detail-cta:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 4px;
}

.service-detail {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  align-items: end;
  gap: 32px;
  margin-top: 32px;
  padding: 32px;
  color: #fff;
  background: var(--c-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.service-detail[hidden] { display: none; }
.service-detail-label {
  margin-bottom: 8px;
  color: var(--c-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.service-detail h3,
.service-detail h4 { color: #fff; }
.service-detail h3 { font-size: 1.45rem; margin-bottom: 10px; }
.service-detail-copy > p:last-child { color: rgba(255, 255, 255, 0.78); }
.service-detail h4 { margin-bottom: 10px; font-size: 0.95rem; }
.service-detail-benefits ul { display: grid; gap: 7px; }
.service-detail-benefits li {
  position: relative;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.9rem;
}
.service-detail-benefits li::before {
  content: '';
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--c-accent);
  border-radius: 50%;
}
.service-detail .btn-primary {
  align-self: center;
  background: var(--c-accent);
  color: var(--c-primary);
  box-shadow: none;
}
.service-detail .btn-primary:hover { background: #fff; }

/* ============================================================
   NOSOTROS
   ============================================================ */
.section-about {
  background: var(--c-bg-alt);
}
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.about-text p {
  color: var(--c-ink-soft);
  font-size: 1.05rem;
  margin-bottom: 16px;
}
.about-pillars {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.pillar {
  padding: 22px;
  background: var(--c-bg);
  border-radius: var(--radius);
  border: 1px solid var(--c-line);
}
.pillar h4 {
  font-size: 1rem;
  color: var(--c-primary);
  margin-bottom: 6px;
}
.pillar p {
  font-size: 0.9rem;
  color: var(--c-muted);
  margin: 0;
}

.about-visual { display: flex; justify-content: center; }
.kv-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.kv-card svg { width: 100%; height: auto; display: block; }
.kv-stat {
  position: absolute;
  left: 24px;
  bottom: 24px;
  background: rgba(255, 255, 255, 0.96);
  padding: 18px 22px;
  border-radius: var(--radius);
  max-width: 80%;
  box-shadow: var(--shadow-sm);
}
.kv-stat strong {
  display: block;
  font-family: var(--ff-display);
  font-size: 2rem;
  color: var(--c-primary);
  line-height: 1;
}
.kv-stat span {
  display: block;
  font-size: 0.88rem;
  color: var(--c-muted);
  margin-top: 4px;
}

/* ============================================================
   PROCESO
   ============================================================ */
.section-process {
  background: var(--c-bg);
}
.process-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  counter-reset: step;
}
.process-step {
  position: relative;
  padding: 30px 26px 30px 26px;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  transition: transform .25s ease, box-shadow .25s ease;
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.step-num {
  display: block;
  font-family: var(--ff-display);
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}
.process-step h3 { font-size: 1.15rem; margin-bottom: 8px; }
.process-step p { color: var(--c-ink-soft); font-size: 0.95rem; }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  padding: 60px 0;
  background:
    radial-gradient(circle at 80% 50%, rgba(0, 212, 255, 0.18), transparent 50%),
    linear-gradient(135deg, var(--c-primary), #122e4d);
  color: #fff;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-inner h2 {
  color: #fff;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  margin-bottom: 6px;
}
.cta-inner p {
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
}
.cta-banner .btn-primary {
  background: var(--c-accent);
  color: var(--c-primary);
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.35);
}
.cta-banner .btn-primary:hover {
  background: #fff;
  color: var(--c-primary);
}

/* ============================================================
   CONTACTO
   ============================================================ */
.section-contact {
  background: var(--c-bg-alt);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.contact-list {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}
.contact-list svg { color: var(--c-accent); flex-shrink: 0; margin-top: 2px; }
.contact-list strong { display: block; color: var(--c-primary); margin-bottom: 2px; font-size: 0.95rem; }
.contact-list span { color: var(--c-ink-soft); font-size: 0.93rem; }
.contact-list a:hover { color: var(--c-accent-2); }

.socials {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}
.socials a {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 50%;
  color: var(--c-primary);
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.socials a:hover {
  background: var(--c-primary);
  color: #fff;
  transform: translateY(-3px);
}

.contact-form {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-primary);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--c-line);
  border-radius: 10px;
  background: var(--c-bg-alt);
  color: var(--c-ink);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.15);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-status {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  font-size: 0.9rem;
  min-height: 1.2em;
  color: var(--c-success);
}
.form-status.error { color: #b91c1c; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--c-primary);
  color: rgba(255, 255, 255, 0.78);
  padding-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 36px;
  padding-bottom: 40px;
}
.brand--footer {
  padding: 8px;
  background: #fff;
  border-radius: var(--radius-sm);
}
.brand--footer .brand-logo { height: 90px; max-width: none; }
.footer-tag {
  margin-top: 12px;
  max-width: 320px;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
}
.site-footer h5 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 14px;
}
.site-footer ul { display: flex; flex-direction: column; gap: 8px; font-size: 0.93rem; }
.site-footer a:hover { color: var(--c-accent); }
.footer-bottom {
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
}

/* WhatsApp FAB */
.wa-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  z-index: 90;
  transition: transform .2s ease, box-shadow .25s ease;
}
.wa-fab::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.5);
  animation: ping 2.6s ease-in-out infinite;
}
@keyframes ping {
  0%   { transform: scale(0.9); opacity: 0.9; }
  100% { transform: scale(1.4); opacity: 0; }
}
.wa-fab:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(37, 211, 102, 0.5); }

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0s !important; transition-duration: 0s !important; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .hero-inner,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .service-detail { grid-template-columns: 1fr 1fr; }
  .service-detail .service-detail-cta { justify-self: start; }
  .hero-visual { min-height: 320px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 120px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 12px;
    right: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 14px;
    background: var(--c-bg-alt);
    border: 1px solid var(--c-line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform .25s ease, opacity .25s ease;
  }
  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .primary-nav .nav-link { padding: 12px 14px; }
  .nav-cta { margin: 6px 0 0; justify-content: center; }
  .nav-link::after { display: none; }

  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stats li:nth-child(3) { grid-column: 1 / -1; }

  .contact-form { grid-template-columns: 1fr; padding: 22px; }
  .footer-grid { grid-template-columns: 1fr; }
  .service-detail { grid-template-columns: 1fr; gap: 22px; padding: 26px; }

  .floater.f-1 { left: 0; top: 4%; }
  .floater.f-2 { right: 0; top: 46%; }
  .floater.f-3 { left: 4%; bottom: 4%; }
}

@media (max-width: 480px) {
  .hero { padding: 110px 0 60px; }
  .section { padding: 64px 0; }
  .orb-card { width: 260px; height: 260px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}