/* PFast — Institutional site */
:root {
  --bg-deep: #050810;
  --bg-surface: #0a1220;
  --bg-elevated: #0f1a2e;
  --bg-muted: #141f35;
  --text-primary: #f0f9ff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #22d3ee;
  --accent-teal: #14b8a6;
  --accent-glow: rgba(34, 211, 238, 0.35);
  --border-subtle: rgba(148, 163, 184, 0.12);
  --border-accent: rgba(34, 211, 238, 0.25);
  --gradient-brand: linear-gradient(135deg, #22d3ee 0%, #14b8a6 50%, #0ea5e9 100%);
  --gradient-hero: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(34, 211, 238, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 90% 80%, rgba(20, 184, 166, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 10% 90%, rgba(14, 165, 233, 0.08) 0%, transparent 45%);
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;
  --header-h: 4.25rem;
  --container: min(72rem, calc(100% - 2.5rem));
  --radius: 0.75rem;
  --radius-lg: 1.25rem;
  --shadow-glow: 0 0 60px rgba(34, 211, 238, 0.12);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text-secondary);
  background: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: var(--gradient-hero);
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: -1;
  opacity: 0.6;
}

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

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-teal);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.35rem); }

p { margin: 0 0 1rem; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

ul, ol { margin: 0 0 1rem; padding-left: 1.25rem; }

.container {
  width: var(--container);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--accent-cyan);
  color: var(--bg-deep);
  font-weight: 600;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(5, 8, 16, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.brand:hover { color: var(--text-primary); }

.brand img {
  width: 2.25rem;
  height: auto;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  padding: 0.5rem 0.875rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--text-primary);
  background: rgba(34, 211, 238, 0.08);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 1.25rem;
  height: 2px;
  margin-inline: auto;
  background: var(--text-primary);
  transition: transform var(--transition), opacity var(--transition);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  text-decoration: none;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--gradient-brand);
  color: var(--bg-deep);
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-primary:hover {
  color: var(--bg-deep);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid var(--border-accent);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(34, 211, 238, 0.08);
  border-color: var(--accent-cyan);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

/* Hero — full viewport, no cards */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 70% 30%, rgba(34, 211, 238, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 20% 70%, rgba(20, 184, 166, 0.1) 0%, transparent 35%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 42rem;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 0.375rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  border: 1px solid var(--border-accent);
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.06);
}

.hero-eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-teal);
  box-shadow: 0 0 12px var(--accent-teal);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  margin: 0 0 1.25rem;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
}

.hero-title .gradient {
  display: block;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  margin-bottom: 2.25rem;
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 34rem;
  line-height: 1.7;
}

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

.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: min(48vw, 520px);
  aspect-ratio: 1;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(34, 211, 238, 0.25), transparent 60%),
    radial-gradient(circle at 65% 65%, rgba(20, 184, 166, 0.2), transparent 55%);
  filter: blur(1px);
  animation: float 8s ease-in-out infinite;
}

.hero-orb-ring {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  border: 1px solid rgba(34, 211, 238, 0.2);
  animation: spin 30s linear infinite;
}

.hero-orb-ring:nth-child(2) {
  inset: 18%;
  border-color: rgba(20, 184, 166, 0.15);
  animation-direction: reverse;
  animation-duration: 45s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Page hero (inner pages) */
.page-hero {
  padding: calc(var(--header-h) + 4rem) 0 3.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.page-hero h1 {
  margin-bottom: 0.75rem;
}

.page-hero p {
  max-width: 36rem;
  margin-inline: auto;
  font-size: 1.125rem;
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 3rem;
}

.section-header p {
  margin-bottom: 0;
  font-size: 1.0625rem;
}

.section-label {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-cyan);
}

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

.feature-item {
  padding: 2rem;
  background: linear-gradient(160deg, rgba(15, 26, 46, 0.9) 0%, rgba(10, 18, 32, 0.6) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.feature-item:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.25rem;
  border-radius: var(--radius);
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent-cyan);
  font-size: 1.35rem;
}

.feature-item h3 {
  margin: 0 0 0.625rem;
}

.feature-item p {
  margin: 0;
  font-size: 0.9375rem;
}

/* Stats strip */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 2.5rem;
  background: linear-gradient(135deg, rgba(15, 26, 46, 0.8), rgba(20, 31, 53, 0.5));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.stat-item {
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Plans */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 2.25rem 2rem;
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-surface) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.plan-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
}

.plan-card.featured {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.15);
}

.plan-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--bg-deep);
  background: var(--gradient-brand);
  border-radius: 999px;
}

.plan-name {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.plan-price {
  margin-bottom: 0.25rem;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.plan-price small {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.plan-period {
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.plan-features {
  flex: 1;
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
}

.plan-features li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.5rem;
  font-size: 0.9375rem;
  border-bottom: 1px solid var(--border-subtle);
}

.plan-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-teal);
  font-weight: 700;
}

.plan-card .btn {
  width: 100%;
}

/* FAQ */
.faq-list {
  max-width: 42rem;
  margin-inline: auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.25rem 0;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition);
}

.faq-question:hover { color: var(--accent-cyan); }

.faq-question::after {
  content: '+';
  flex-shrink: 0;
  margin-left: 1rem;
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent-cyan);
  transition: transform var(--transition);
}

.faq-item.is-open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.is-open .faq-answer {
  max-height: 20rem;
}

.faq-answer p {
  padding-bottom: 1.25rem;
  margin: 0;
  font-size: 0.9375rem;
}

/* Tutorial steps */
.steps-list {
  counter-reset: step;
  max-width: 40rem;
  margin-inline: auto;
  list-style: none;
  padding: 0;
}

.step-item {
  position: relative;
  padding: 0 0 2.5rem 4rem;
  counter-increment: step;
}

.step-item::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--bg-deep);
  background: var(--gradient-brand);
  border-radius: 50%;
}

.step-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 1.35rem;
  top: 2.75rem;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-cyan), transparent);
}

.step-item h3 {
  margin: 0 0 0.5rem;
}

.step-item p {
  margin: 0;
  font-size: 0.9375rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h3 {
  margin: 0 0 1rem;
}

.contact-channel {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  margin-bottom: 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.contact-channel:hover {
  border-color: var(--border-accent);
}

.contact-channel-icon {
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent-cyan);
  font-size: 1.25rem;
}

.contact-form {
  padding: 2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
}

.form-group textarea {
  min-height: 8rem;
  resize: vertical;
}

/* Download */
.download-box {
  max-width: 32rem;
  margin-inline: auto;
  padding: 3rem 2.5rem;
  text-align: center;
  background: linear-gradient(160deg, var(--bg-elevated), var(--bg-surface));
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow);
}

.download-icon {
  width: 5rem;
  height: 5rem;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  border-radius: 1.25rem;
  background: rgba(34, 211, 238, 0.1);
}

.download-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 1.5rem 0 2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.requirements {
  max-width: 36rem;
  margin: 3rem auto 0;
  padding: 1.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  text-align: left;
}

.requirements h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.requirements ul {
  margin: 0;
  font-size: 0.9375rem;
}

/* Legal prose */
.legal-content {
  max-width: 42rem;
  margin-inline: auto;
}

.legal-content h2 {
  margin: 2.5rem 0 1rem;
  font-size: 1.35rem;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p,
.legal-content li {
  font-size: 0.9375rem;
}

.legal-content ul {
  margin-bottom: 1rem;
}

.legal-updated {
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* CTA band */
.cta-band {
  padding: 4rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(15, 26, 46, 0.95), rgba(20, 31, 53, 0.8));
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.cta-band h2 {
  margin-bottom: 0.75rem;
}

.cta-band p {
  max-width: 32rem;
  margin: 0 auto 1.75rem;
}

/* Footer */
.site-footer {
  padding: 4rem 0 2rem;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin: 1rem 0 0;
  font-size: 0.9375rem;
  max-width: 18rem;
}

.footer-col h4 {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.footer-col a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--text-muted);
}

.footer-bottom a:hover {
  color: var(--accent-cyan);
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-visual {
    opacity: 0.35;
    right: -15%;
  }

  .features-grid,
  .plans-grid {
    grid-template-columns: 1fr;
    max-width: 28rem;
    margin-inline: auto;
  }

  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: rgba(5, 8, 16, 0.96);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }

  .site-header.nav-open .site-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .site-header.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav a {
    padding: 0.875rem 1rem;
  }

  .hero-visual {
    display: none;
  }

  .hero-content {
    max-width: none;
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-eyebrow {
    margin-inline: auto;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .stats-strip {
    grid-template-columns: 1fr 1fr;
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stats-strip {
    grid-template-columns: 1fr;
  }
}

/* ========== Floating WhatsApp + Scroll top ========== */
.float-stack {
  position: fixed;
  right: 1.15rem;
  bottom: 1.15rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
}

.float-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.35rem;
  height: 3.35rem;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.float-btn:hover {
  transform: translateY(-2px) scale(1.04);
  color: #fff;
}

.float-btn svg {
  width: 1.45rem;
  height: 1.45rem;
  fill: currentColor;
}

.float-wa {
  background: #25d366;
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.4);
}

.float-top {
  background: var(--bg-elevated);
  border: 1px solid var(--border-accent);
  color: var(--accent-cyan);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
}

.float-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.float-top svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ========== Download premium ========== */
.download-paths {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.download-card {
  position: relative;
  padding: 2rem 1.75rem;
  background: linear-gradient(165deg, var(--bg-elevated), var(--bg-surface));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.download-card.featured {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.download-card-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: var(--gradient-brand);
  border-radius: 999px;
}

.download-card-icon {
  width: 3.5rem;
  height: 3.5rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent-cyan);
}

.download-card-icon svg {
  width: 1.75rem;
  height: 1.75rem;
}

.download-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.45rem;
}

.download-card > p {
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.code-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0.5rem 0 1.25rem;
  padding: 0.85rem 1.15rem;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--text-primary);
  background: rgba(34, 211, 238, 0.08);
  border: 1px dashed var(--border-accent);
  border-radius: var(--radius);
}

.code-pill button {
  border: none;
  background: transparent;
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.guide-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: guide;
}

.guide-steps li {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  margin-bottom: 1.15rem;
  padding: 1rem 1.1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
}

.guide-steps li::before {
  counter-increment: guide;
  content: counter(guide);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--bg-deep);
  background: var(--gradient-brand);
  border-radius: 50%;
}

.guide-steps strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.guide-steps span {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.warn-box {
  margin-top: 1.25rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid rgba(248, 113, 113, 0.35);
  background: rgba(248, 113, 113, 0.08);
  color: #fecaca;
  font-size: 0.9rem;
}

.warn-box strong {
  color: #fff;
}

.apk-direct-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0 1.5rem;
}

.apk-direct-meta span {
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
}

/* Device tabs (tutorial) */
.device-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2rem;
}

.device-tab {
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}

.device-tab.is-active,
.device-tab:hover {
  color: var(--bg-deep);
  background: var(--gradient-brand);
  border-color: transparent;
}

.device-panel {
  display: none;
}

.device-panel.is-active {
  display: block;
}

.howto-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.howto-card {
  padding: 1.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.howto-card .num {
  width: 2.4rem;
  height: 2.4rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--bg-deep);
  background: var(--gradient-brand);
}

.howto-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.howto-card p {
  margin: 0;
  font-size: 0.92rem;
}

.content-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.premium-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.premium-list li {
  position: relative;
  padding: 0.65rem 0 0.65rem 1.85rem;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.95rem;
}

.premium-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--gradient-brand);
}

.plan-gift {
  margin: 0.75rem 0 1rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid var(--border-accent);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 700;
}

.seo-block {
  max-width: 48rem;
  margin: 0 auto;
}

.seo-block h2 {
  margin-bottom: 1rem;
}

.seo-block p {
  font-size: 1rem;
}

@media (max-width: 900px) {
  .download-paths,
  .howto-grid,
  .content-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .float-stack {
    right: 0.85rem;
    bottom: 0.85rem;
  }

  .code-pill {
    font-size: 1.35rem;
    letter-spacing: 0.08em;
  }
}