/* ==========================================================================
   Components — Buttons, Cards, Badges, Nav, Logo (Retro Atomic Age)
   ========================================================================== */

/* --- Logo --- */

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  text-decoration: none;
}

.logo-img {
  height: 32px;
  width: auto;
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.4;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px rgba(74, 162, 150, 0.25);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(74, 162, 150, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--secondary);
  color: var(--text-inverse);
  box-shadow: 0 2px 8px rgba(201, 146, 58, 0.2);
}

.btn-secondary:hover {
  background: var(--secondary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(201, 146, 58, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(74, 162, 150, 0.06);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

/* --- Badges --- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  background: var(--accent-muted);
  color: var(--accent-glow);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid rgba(74, 162, 150, 0.15);
}

.badge svg {
  flex-shrink: 0;
}

/* --- Navigation --- */

#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

#site-header.scrolled {
  background: rgba(26, 26, 14, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border-subtle);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: var(--nav-height);
  gap: var(--sp-3xl);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-2xl);
  margin-left: auto;
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  margin-left: var(--sp-2xl);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  margin-left: auto;
}

.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all 0.3s ease;
}

@media (max-width: 767px) {
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(26, 26, 14, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: var(--sp-2xl);
    gap: var(--sp-lg);
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    margin-left: 0;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    font-size: 1rem;
  }

  .nav-actions {
    display: none;
  }

  .nav-links.open ~ .nav-actions {
    display: flex;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .nav-hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  .nav-hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* --- Feature Cards --- */

.feature-card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-left: 3px solid var(--card-accent, var(--accent));
  border-radius: var(--radius-lg);
  padding: var(--sp-2xl);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow:
    var(--shadow-card-hover),
    0 4px 20px color-mix(in srgb, var(--card-accent, var(--accent)) 15%, transparent);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--surface);
  margin-bottom: var(--sp-lg);
  color: var(--card-accent, var(--accent));
  border: 1px solid rgba(74, 68, 51, 0.5);
}

.feature-card h3 {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--sp-sm);
}

.feature-card p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.feature-card kbd {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
}

/* --- Pricing Cards --- */

.pricing-card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--sp-3xl);
  position: relative;
  transition: transform 0.25s ease;
}

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

.pricing-featured {
  border-color: var(--accent);
  box-shadow: 0 0 30px rgba(74, 162, 150, 0.08);
  transform: scale(1.03);
}

.pricing-featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent), var(--accent-glow));
  color: var(--text-inverse);
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
}

.pricing-header {
  margin-bottom: var(--sp-2xl);
}

.pricing-header h3 {
  font-size: 1.25rem;
  margin-bottom: var(--sp-sm);
}

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

.price-amount {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--text-primary);
}

.price-period {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
  margin-bottom: var(--sp-2xl);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.pricing-features svg {
  flex-shrink: 0;
}