/* ============== BASE ============== */
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--text);
  background: var(--bg);
  transition: background var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
  overflow-x: clip;
}

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

.section {
  padding-block: var(--section-pad-y);
  position: relative;
}

.section-head {
  max-width: 760px;
  margin: 0 auto var(--space-7);
  text-align: center;
}

.kicker {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

h1 { font-size: var(--fs-5xl); font-weight: 800; letter-spacing: -0.025em; }
h2 { font-size: var(--fs-3xl); font-weight: 800; letter-spacing: -0.02em; }
h3 { font-size: var(--fs-xl); font-weight: 700; letter-spacing: -0.01em; }
h4 { font-size: var(--fs-base); font-weight: 700; }

.lead {
  font-size: var(--fs-lg);
  color: var(--text-muted);
  margin-top: var(--space-4);
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 9999;
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

/* ============== BUTTONS ============== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: var(--fs-sm);
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-pill);
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
  will-change: transform;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.btn-lg { font-size: var(--fs-base); padding: 0.95rem 1.75rem; }
.btn-sm { font-size: var(--fs-xs); padding: 0.55rem 1rem; }

.btn-primary {
  background: var(--grad-cta);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(0,212,255,0.35), 0 18px 50px rgba(0,212,255,0.28); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: var(--bg-card-hover); transform: translateY(-2px); }

/* ============== HEADER ============== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.site-header.scrolled { border-bottom-color: var(--border); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: var(--fs-lg);
  letter-spacing: -0.01em;
}
.brand-logo {
  width: 40px; height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: var(--shadow-sm);
}
.brand-accent { color: var(--accent); }

.nav-list {
  display: flex;
  gap: var(--space-6);
  font-size: var(--fs-sm);
  font-weight: 500;
}
.nav-list a {
  color: var(--text-muted);
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
  padding-block: var(--space-2);
}
.nav-list a:hover, .nav-list a.active { color: var(--text); }
.nav-list a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--grad-cta);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}
.nav-list a:hover::after, .nav-list a.active::after { transform: scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--border);
  transition: all var(--dur-fast) var(--ease-out);
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-strong); transform: rotate(15deg); }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme='light'] .theme-toggle .icon-sun { display: block; }
[data-theme='light'] .theme-toggle .icon-moon { display: none; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
}
.menu-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}
.menu-toggle[aria-expanded='true'] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded='true'] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded='true'] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============== HERO ============== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-block: calc(var(--space-9) + var(--space-6)) var(--space-9);
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--grad-hero), var(--bg);
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 18s ease-in-out infinite;
  will-change: transform;
}
.orb-1 { width: 540px; height: 540px; background: var(--brand-cyan); top: -180px; left: -180px; opacity: 0.25; }
.orb-2 { width: 600px; height: 600px; background: var(--brand-blue); top: 20%; right: -240px; opacity: 0.22; animation-delay: -6s; }
.orb-3 { width: 460px; height: 460px; background: var(--brand-violet); bottom: -180px; left: 35%; opacity: 0.18; animation-delay: -12s; }

[data-theme='light'] .orb { opacity: 0.18; }
[data-theme='light'] .orb-1 { opacity: 0.15; }
[data-theme='light'] .orb-2 { opacity: 0.13; }
[data-theme='light'] .orb-3 { opacity: 0.11; }

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 25px) scale(0.97); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 80%);
  opacity: 0.5;
}

.hero-inner {
  position: relative;
  text-align: center;
  max-width: 980px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.eyebrow .dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-title {
  margin-top: var(--space-5);
  font-size: clamp(2.4rem, 1.7rem + 4vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero-sub {
  font-size: var(--fs-lg);
  color: var(--text-muted);
  margin-top: var(--space-5);
  max-width: 720px;
  margin-inline: auto;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-7);
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-7);
}
.hero-chips li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: var(--space-5);
  transform: translateX(-50%);
  width: 24px;
  height: 38px;
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-pill);
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-hint span {
  width: 3px;
  height: 8px;
  background: var(--text-muted);
  border-radius: 2px;
  animation: scrollDot 1.6s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { opacity: 0; transform: translateY(0); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: translateY(12px); }
}

/* ============== ABOUT / STATS ============== */
.about { background: var(--bg); }
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-8);
}
.stat {
  padding: var(--space-6) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  text-align: center;
  transition: transform var(--dur-base) var(--ease-out), background var(--dur-base);
}
.stat:hover { transform: translateY(-4px); background: var(--bg-card-hover); }
.stat-num {
  font-size: clamp(2rem, 1.5rem + 1.5vw, 2.8rem);
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-top: var(--space-2);
}

/* ============== SERVICES ============== */
.services { background: var(--bg-elevated); position: relative; }
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-7);
}
.card {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base),
              box-shadow var(--dur-base);
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad-cta);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card:hover::before { opacity: 1; }

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(79,124,255,0.15));
  color: var(--accent);
  margin-bottom: var(--space-4);
  border: 1px solid var(--border);
}
.card h3 { margin-bottom: var(--space-2); }
.card > p { color: var(--text-muted); margin-bottom: var(--space-4); }
.card ul { display: grid; gap: var(--space-2); }
.card ul li {
  position: relative;
  padding-left: 1.4rem;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}
.card ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.55rem;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

/* ============== PROCESS ============== */
.process { background: var(--bg); }
.timeline {
  position: relative;
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-7);
  counter-reset: step;
  max-width: 900px;
  margin-inline: auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 28px;
  bottom: 28px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-3));
  opacity: 0.35;
  border-radius: 2px;
}
.step {
  display: flex;
  gap: var(--space-5);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform var(--dur-base) var(--ease-out), background var(--dur-base);
  position: relative;
}
.step:hover { transform: translateX(6px); background: var(--bg-card-hover); }

.step-num {
  flex-shrink: 0;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--grad-cta);
  color: #fff;
  font-weight: 800;
  font-size: var(--fs-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
  position: relative;
  z-index: 1;
}
.step-body h3 { margin-bottom: var(--space-2); }
.step-body p { color: var(--text-muted); }

/* ============== BENEFITS ============== */
.benefits { background: var(--bg-elevated); }
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-7);
}
.benefit {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base);
}
.benefit:hover { transform: translateY(-4px); border-color: var(--accent); }
.benefit-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(79,124,255,0.15));
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  border: 1px solid var(--border);
}
.benefit h3 { margin-bottom: var(--space-2); }
.benefit p { color: var(--text-muted); font-size: var(--fs-sm); }

/* ============== CTA BAND ============== */
.cta-band { background: var(--bg); padding-block: var(--space-8); }
.cta-band-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-7);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(123,92,255,0.08));
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.cta-band-inner::before {
  content: '';
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle, rgba(0,212,255,0.15) 0%, transparent 50%);
  animation: rotate 22s linear infinite;
  z-index: 0;
}
.cta-band-inner > * { position: relative; z-index: 1; }
.cta-band-inner h2 { font-size: var(--fs-2xl); }
.cta-band-inner p { color: var(--text-muted); margin-top: var(--space-2); }
@keyframes rotate {
  to { transform: rotate(360deg); }
}

/* ============== CONTACT ============== */
.contact {
  background: var(--bg);
  padding-block: clamp(3rem, 6vw, 5rem) clamp(2.5rem, 5vw, 4rem);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-8);
  align-items: start;
}

.contact-info .kicker { display: inline-block; }
.contact-info h2 { margin-top: var(--space-3); }
.contact-list {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.contact-list li {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform var(--dur-base), border-color var(--dur-base);
}
.contact-list li:hover { transform: translateX(4px); border-color: var(--accent); }
.ci-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(79,124,255,0.15));
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-list small {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.contact-list a {
  color: var(--text);
  font-weight: 600;
  font-size: var(--fs-sm);
}
.contact-list a:hover { color: var(--accent); }

.socials {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.socials a {
  width: 40px; height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all var(--dur-fast) var(--ease-out);
}
.socials a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  align-self: start;
}
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field-full { grid-column: 1 / -1; }
.field label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text);
}
.field label .req { color: var(--accent); }
.field label .opt { color: var(--text-dim); font-weight: 400; font-size: var(--fs-xs); }

.field input,
.field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-size: var(--fs-sm);
  transition: border-color var(--dur-fast), background var(--dur-fast), box-shadow var(--dur-fast);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0,212,255,0.12);
}
.field textarea { resize: vertical; min-height: 120px; font-family: inherit; }

.field.error input,
.field.error textarea { border-color: #ef4444; box-shadow: 0 0 0 4px rgba(239,68,68,0.12); }
.error {
  color: #ef4444;
  font-size: var(--fs-xs);
  min-height: 1em;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-actions {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-4);
  justify-content: space-between;
}
.form-actions .btn { min-width: 180px; }
.form-note {
  font-size: var(--fs-xs);
  color: var(--text-dim);
  flex: 1 1 200px;
}

.btn-spinner {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#submitBtn.loading .btn-label { opacity: 0.6; }
#submitBtn.loading .btn-spinner { display: inline-block; }
#submitBtn[disabled] { opacity: 0.7; cursor: not-allowed; }

.form-feedback {
  grid-column: 1 / -1;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  display: none;
}
.form-feedback.success { display: block; background: rgba(34,197,94,0.12); color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.form-feedback.error-msg { display: block; background: rgba(239,68,68,0.12); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }

/* ============== FOOTER ============== */
.site-footer {
  background: var(--bg-elevated);
  padding-top: clamp(1.5rem, 3vw, 2.5rem);
  padding-bottom: var(--space-4);
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-6);
}
.footer-brand p {
  color: var(--text-muted);
  margin-top: var(--space-4);
  max-width: 320px;
  font-size: var(--fs-sm);
}
.site-footer h4 { color: var(--text); margin-bottom: var(--space-4); font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: 0.1em; }
.site-footer ul li { margin-bottom: var(--space-2); }
.site-footer ul a {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  transition: color var(--dur-fast);
}
.site-footer ul a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  font-size: var(--fs-xs);
  color: var(--text-dim);
}

/* ============== REVEAL ANIMATIONS ============== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============== RESPONSIVE ============== */
@media (max-width: 880px) {
  /* Quita backdrop-filter en móvil: en Chrome/Safari convierte al header en
     containing block de los hijos position:fixed, lo que hace que el .nav
     se renderice con altura 0 y no se vea al abrirse. */
  .site-header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--bg);
  }
  .site-header.scrolled {
    background: var(--header-bg);
  }
  .nav {
    position: fixed;
    inset: 64px 0 0 0;
    background: var(--bg);
    border-top: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform var(--dur-base) var(--ease-out);
    overflow-y: auto;
    z-index: 99;
  }
  .nav.open { transform: translateX(0); }
  .nav-list {
    flex-direction: column;
    padding: var(--space-6);
    gap: var(--space-4);
    font-size: var(--fs-lg);
  }
  .nav-list a { display: block; padding-block: var(--space-3); }

  .menu-toggle { display: inline-flex; }
  .header-cta { display: none; }

  .contact-grid { grid-template-columns: 1fr; gap: var(--space-7); }
  .contact-form { padding: var(--space-5); grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }

  .cta-band-inner { flex-direction: column; text-align: center; align-items: stretch; }
  .cta-band-inner .btn { justify-self: center; align-self: center; }

  .step { padding: var(--space-4); }
  .timeline::before { left: 22px; }
  .step-num { width: 44px; height: 44px; font-size: var(--fs-base); }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; }
  .form-actions { flex-direction: column; align-items: stretch; }
  .form-actions .btn { width: 100%; }
}

/* Body scroll lock when mobile menu open */
body.menu-open { overflow: hidden; }