@import url("css/theme.css");

html {
  scroll-behavior: smooth;
}

body.landing-page {
  margin: 0;
  font-family: var(--font-ui);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

a {
  color: var(--primary);
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px clamp(12px, 2vw, 24px);
  padding: 14px clamp(16px, 4vw, 48px);
  padding-top: calc(14px + env(safe-area-inset-top));
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

main {
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
}

.site-header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.site-logo {
  flex-shrink: 0;
}

.site-logo img {
  height: 48px;
  width: auto;
  border-radius: 12px;
  display: block;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}

.site-nav-primary,
.site-nav-auth {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.site-nav-bridge {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 0 clamp(8px, 2vw, 24px);
  min-width: 48px;
}

.site-nav-bridge-track {
  position: relative;
  display: block;
  width: 100%;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 64, 128, 0.08) 15%,
    rgba(0, 64, 128, 0.14) 50%,
    rgba(0, 64, 128, 0.08) 85%,
    transparent
  );
  overflow: hidden;
}

.site-nav-bridge-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 38%;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    var(--primary),
    var(--accent),
    var(--envelope)
  );
  animation: nav-bridge-slide 2.8s cubic-bezier(0.45, 0, 0.25, 1) infinite;
}

.site-nav-bridge-glow {
  position: absolute;
  top: 50%;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--envelope);
  box-shadow:
    0 0 8px rgba(255, 140, 0, 0.9),
    0 0 18px rgba(66, 165, 245, 0.5);
  transform: translate(-50%, -50%);
  animation: nav-bridge-glow 2.8s cubic-bezier(0.45, 0, 0.25, 1) infinite;
}

@keyframes nav-bridge-slide {
  0% {
    transform: translateX(-120%);
    opacity: 0.4;
  }
  15% {
    opacity: 1;
  }
  85% {
    opacity: 1;
  }
  100% {
    transform: translateX(320%);
    opacity: 0.4;
  }
}

@keyframes nav-bridge-glow {
  0% {
    left: 0%;
    opacity: 0;
  }
  8% {
    opacity: 1;
  }
  92% {
    opacity: 1;
  }
  100% {
    left: 100%;
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav-bridge-fill,
  .site-nav-bridge-glow {
    animation: none;
  }

  .site-nav-bridge-fill {
    width: 100%;
    opacity: 0.55;
    transform: none;
    background: linear-gradient(
      90deg,
      transparent,
      var(--primary) 30%,
      var(--accent) 50%,
      var(--envelope) 70%,
      transparent
    );
  }

  .site-nav-bridge-glow {
    display: none;
  }
}

.site-nav a {
  font-family: var(--font-label);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  transition: background var(--transition), color var(--transition);
}

.site-nav a:hover {
  background: var(--accent-soft);
  color: var(--corporate);
}

.nav-ghost {
  border: 1px solid var(--border-strong);
}

.nav-cta {
  background: linear-gradient(135deg, var(--envelope), #ff9f2e) !important;
  color: #fff !important;
  box-shadow: 0 2px 12px rgba(255, 140, 0, 0.3);
}

.nav-cta:hover {
  background: linear-gradient(135deg, var(--envelope-hover), #ff8c00) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--paper);
  cursor: pointer;
  padding: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--corporate);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ── */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px clamp(20px, 4vw, 48px) 80px;
  scroll-margin-top: 72px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -120px;
  right: -80px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow), transparent 65%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  min-width: 0;
  width: 100%;
  max-width: 100%;
}

.pill {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--envelope);
  background: var(--envelope-soft);
  border: 1px solid rgba(255, 140, 0, 0.3);
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--corporate);
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  margin: 0 0 32px;
  font-size: 1.08rem;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
  width: 100%;
  max-width: 100%;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  max-width: 100%;
  min-width: 0;
  font-family: var(--font-label);
  font-size: clamp(0.85rem, 2.8vw, 0.95rem);
  font-weight: 700;
  text-decoration: none;
  padding: 14px clamp(16px, 4vw, 28px);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
  white-space: normal;
  line-height: 1.3;
  overflow-wrap: break-word;
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-install,
.pwa-install-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-label);
  font-size: clamp(0.85rem, 2.8vw, 0.95rem);
  font-weight: 700;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--paper);
  color: var(--text);
  padding: 14px clamp(16px, 4vw, 24px);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-install:hover,
.pwa-install-header:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: var(--surface);
}

.pwa-install-header {
  padding: 8px 12px;
  font-size: 0.82rem;
  border-radius: 999px;
  margin-right: 4px;
}

.pwa-install-header-label {
  display: none;
}

@media (min-width: 768px) {
  .pwa-install-header-label {
    display: inline;
  }
}

.btn-install.hidden,
.pwa-install-header.hidden {
  display: none;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--envelope), #ff9f2e);
  box-shadow: 0 4px 20px rgba(255, 140, 0, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 140, 0, 0.4);
}

.btn-primary-lg {
  padding: 14px clamp(18px, 4vw, 36px);
  font-size: clamp(0.9rem, 2.8vw, 1rem);
}

.btn-secondary {
  color: var(--corporate);
  background: var(--paper);
  border: 1.5px solid var(--border-strong);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.hero-stats {
  display: flex;
  gap: 32px;
}

.hero-stats div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-stats strong {
  font-family: var(--font-label);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--corporate);
}

.hero-stats span {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Mock window */
.hero-visual {
  position: relative;
  z-index: 1;
}

.mock-window {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.mock-bar {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.mock-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-strong);
}

.mock-bar span:first-child { background: #ff5f57; }
.mock-bar span:nth-child(2) { background: #febc2e; }
.mock-bar span:nth-child(3) { background: #28c840; }

.mock-body {
  padding: 28px;
}

.mock-label {
  margin: 0 0 8px;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.mock-email {
  margin: 0 0 24px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--primary);
  word-break: break-all;
}

.mock-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--accent-soft), var(--envelope-soft));
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.mock-code span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.mock-code strong {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  letter-spacing: 0.15em;
  color: var(--corporate);
}

/* ── Features ── */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px) 80px;
}

.feature-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-card-accent {
  background: linear-gradient(145deg, var(--corporate), #1565a8);
  border: none;
  color: #fff;
}

.feature-icon {
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 16px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-label);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--corporate);
}

.feature-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.feature-card.feature-card-accent h3,
.feature-card.feature-card-accent .feature-icon {
  color: #fff;
}

.feature-card.feature-card-accent p {
  color: rgba(255, 255, 255, 0.92);
}

/* ── About ── */
.about {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px clamp(20px, 4vw, 48px);
  scroll-margin-top: 72px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.about-text h2,
.faq h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--corporate);
  letter-spacing: -0.02em;
}

.about-text > p {
  margin: 0 0 24px;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.about-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.about-list li {
  position: relative;
  padding-left: 28px;
  font-size: 0.92rem;
  color: var(--text);
}

.about-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--envelope);
}

.about-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.about-card-title {
  margin: 0 0 8px;
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.about-card-value {
  margin: 0;
  font-family: var(--font-label);
  font-size: 3rem;
  font-weight: 700;
  color: var(--corporate);
  line-height: 1;
}

.about-card-sub {
  margin: 8px 0 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ── Pricing ── */
.pricing {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px) 80px;
  scroll-margin-top: 72px;
}

.pricing-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
}

.pricing-head h2 {
  margin: 12px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--corporate);
}

.pricing-lead {
  margin: 0 0 24px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

.pricing-toggle {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.pricing-toggle-btn {
  border: none;
  background: transparent;
  padding: 10px 20px;
  border-radius: 999px;
  font-family: var(--font-label);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}

.pricing-toggle-btn.active {
  background: var(--corporate);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 64, 128, 0.25);
}

.pricing-save {
  display: inline-block;
  margin-left: 4px;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--envelope-soft);
  color: var(--envelope);
  font-size: 0.72rem;
  font-weight: 700;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.pricing-card-featured {
  background: linear-gradient(160deg, var(--corporate), #1565a8);
  border: none;
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.pricing-popular {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 140, 0, 0.9);
  color: #fff;
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.pricing-tier {
  margin: 0 0 8px;
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.pricing-card-featured .pricing-tier {
  color: rgba(255, 255, 255, 0.75);
}

.pricing-price {
  margin: 0 0 4px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.pricing-amount {
  font-family: var(--font-label);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--corporate);
  line-height: 1;
}

.pricing-card-featured .pricing-amount,
.pricing-card-featured .pricing-period {
  color: #fff;
}

.pricing-period {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.pricing-hint {
  margin: 0 0 20px;
  min-height: 1.2em;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.pricing-card-featured .pricing-hint {
  color: rgba(255, 255, 255, 0.72);
}

.pricing-features {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  flex: 1;
  display: grid;
  gap: 10px;
}

.pricing-features li {
  position: relative;
  padding-left: 22px;
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.45;
}

.pricing-card-featured .pricing-features li {
  color: rgba(255, 255, 255, 0.92);
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
}

.pricing-card-featured .pricing-features li::before {
  color: var(--envelope);
}

.pricing-cta {
  width: 100%;
  padding: 13px 20px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--envelope), #ff9f2e);
  color: #fff;
  font-family: var(--font-label);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 2px 12px rgba(255, 140, 0, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}

.pricing-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 140, 0, 0.4);
}

.pricing-cta-ghost {
  background: transparent;
  color: var(--corporate);
  border: 1px solid var(--border-strong);
  box-shadow: none;
}

.pricing-cta-ghost:hover {
  background: var(--accent-soft);
  box-shadow: none;
}

.pricing-card-featured .pricing-cta {
  background: var(--paper);
  color: var(--corporate);
  box-shadow: none;
}

.pricing-card-featured .pricing-cta:hover {
  background: var(--bg);
}

.pricing-disclaimer {
  margin: 28px 0 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ── FAQ ── */
.faq {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px) 80px;
  scroll-margin-top: 72px;
}

.faq-grid {
  display: grid;
  gap: 10px;
  margin-top: 32px;
}

.faq-item {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-item summary {
  font-family: var(--font-label);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--corporate);
  padding: 18px 22px;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item p {
  margin: 0;
  padding: 0 22px 18px;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* ── CTA ── */
.cta-banner {
  box-sizing: border-box;
  text-align: center;
  max-width: 720px;
  width: calc(100% - clamp(32px, 8vw, 96px));
  margin: 0 auto 80px;
  padding: clamp(32px, 6vw, 56px) clamp(20px, 5vw, 32px);
  background: linear-gradient(135deg, var(--corporate-dark), var(--corporate));
  border-radius: var(--radius-xl);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.cta-banner h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 4vw, 2rem);
  line-height: 1.2;
}

.cta-banner p {
  margin: 0 0 28px;
  opacity: 0.9;
  font-size: clamp(0.95rem, 2.5vw, 1.05rem);
  line-height: 1.55;
}

.cta-banner .btn-primary,
.cta-banner .btn-primary-lg {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: min(100%, 360px);
  margin-inline: auto;
  padding-left: clamp(14px, 4vw, 20px);
  padding-right: clamp(14px, 4vw, 20px);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px clamp(20px, 4vw, 48px) 24px;
  background: var(--paper);
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-grid strong {
  font-family: var(--font-label);
  font-size: 1.1rem;
  color: var(--corporate);
}

.footer-grid p {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-grid nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.footer-grid nav a {
  font-family: var(--font-label);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-grid nav a:hover {
  color: var(--primary);
}

.footer-copy {
  text-align: center;
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 40px;
    gap: 32px;
  }

  .hero-visual {
    order: -1;
    max-width: 420px;
    width: 100%;
    margin: 0 auto;
  }

  .hero-lead {
    max-width: none;
  }

  .features,
  .about,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card-featured {
    order: -1;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary,
  .hero-actions .btn-install {
    width: 100%;
    max-width: 100%;
  }
}

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

  .site-header-tools {
    margin-left: auto;
  }

  .site-nav {
    display: none;
    flex: 1 1 100%;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--paper);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px calc(16px + env(safe-area-inset-bottom));
    box-shadow: var(--shadow);
    gap: 12px;
  }

  .site-nav-primary,
  .site-nav-auth {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .site-nav a {
    text-align: center;
  }

  .site-nav-bridge {
    display: none;
  }

  .site-nav-auth {
    padding-top: 8px;
    border-top: 1px solid var(--border);
  }

  .site-nav.open {
    display: flex;
  }

  .hero {
    padding: 32px 16px 48px;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 16px 24px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary,
  .hero-actions .btn-install {
    width: 100%;
    max-width: 100%;
    flex: 1 1 auto;
  }

  .mock-body {
    padding: 20px;
  }

  .mock-code {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .mock-code strong {
    font-size: 1.25rem;
    letter-spacing: 0.1em;
  }

  .features,
  .pricing,
  .about,
  .faq {
    padding-left: 16px;
    padding-right: 16px;
  }

  .about {
    padding-top: 48px;
    padding-bottom: 48px;
    gap: 32px;
  }

  .about-card {
    padding: 28px 24px;
  }

  .pricing-toggle {
    flex-wrap: wrap;
    justify-content: center;
    max-width: 100%;
  }

  .pricing-toggle-btn {
    padding: 10px 14px;
    font-size: 0.82rem;
  }

  .pricing-card {
    padding: 28px 20px 24px;
  }

  .cta-banner {
    width: calc(100% - 32px);
    margin-bottom: 48px;
    padding: 32px 20px;
  }

  .cta-banner .btn-primary,
  .cta-banner .btn-primary-lg {
    display: flex;
    width: 100%;
    max-width: 100%;
    margin-inline: auto;
    padding-left: 16px;
    padding-right: 16px;
  }

  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 480px) {
  .site-logo img {
    height: 40px;
  }

  .hero h1 {
    font-size: clamp(1.65rem, 8vw, 2rem);
  }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .hero-stats strong {
    font-size: 1.25rem;
  }

  .hero-stats span {
    font-size: 0.68rem;
  }

  .feature-card,
  .pricing-card {
    padding: 24px 18px;
  }

  .cta-banner {
    width: calc(100% - 24px);
    border-radius: var(--radius-lg);
    padding: 28px 16px;
  }

  .cta-banner .btn-primary-lg {
    font-size: 0.92rem;
    padding: 14px 16px;
  }

  .faq-item summary,
  .faq-item p {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (min-width: 769px) {
  .site-nav {
    position: static;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
  }
}