.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wordmark {
  height: 30px;
  width: auto;
}

.hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  padding: 0;
}

.hamburger-icon {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background: var(--secondary);
  border-radius: 1px;
  transition: background 0.2s ease;
}

.hamburger-icon::before,
.hamburger-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--secondary);
  border-radius: 1px;
  transition: transform 0.2s ease, top 0.2s ease;
}

.hamburger-icon::before {
  top: -6px;
}

.hamburger-icon::after {
  top: 6px;
}

.hamburger[aria-expanded="true"] .hamburger-icon {
  background: transparent;
}

.hamburger[aria-expanded="true"] .hamburger-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.hamburger[aria-expanded="true"] .hamburger-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-links a {
  color: var(--text);
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--primary-dark);
}

.nav-links.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--card);
  padding: var(--space-4);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  gap: var(--space-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--fs-base);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover,
.btn:focus-visible {
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--primary-dark);
  color: #FFFFFF;
}

.btn-outline {
  background: transparent;
  color: var(--secondary);
  border-color: var(--line);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background: var(--bg);
  border-color: var(--secondary);
  color: var(--secondary);
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-sm);
}

.download-hint {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-light);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.badge-muted {
  background: var(--line);
  color: var(--text-light);
}

.eyebrow {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-light);
  margin-bottom: var(--space-2);
}

.feature-card,
.step-card,
.detail-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.feature-card h3 {
  margin-bottom: var(--space-2);
}

.feature-card p,
.step-card p {
  color: var(--text-light);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  margin-bottom: var(--space-4);
}

.step-card {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--secondary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.screenshot-card img {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  margin: 0 auto;
}

.detail-list {
  margin-bottom: var(--space-5);
  text-align: left;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--line);
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-row dt {
  color: var(--text-light);
}

.detail-row dd {
  font-weight: 600;
  text-align: right;
}

.ios-card {
  background: #F3F4F6;
  border-radius: var(--radius-lg);
}

.ios-form fieldset {
  border: none;
  padding: 0;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 360px;
}

.ios-form label {
  font-weight: 600;
  color: var(--text-light);
  text-align: left;
}

.ios-form input,
.ios-form button {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  font-size: var(--fs-base);
}

.ios-form input[disabled],
.ios-form button[disabled] {
  background: var(--line);
  color: var(--text-light);
  cursor: not-allowed;
}

.faq-item {
  border-bottom: 1px solid var(--line);
  padding: var(--space-4) 0;
}

.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  color: var(--secondary);
}

.faq-item p {
  margin-top: var(--space-2);
  color: var(--text-light);
}