/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.4);
  color: white;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-primary-light);
  color: white;
}

.btn-lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--font-size-lg);
}

.btn-on-dark {
  background: white;
  color: #0a192f;
}

.btn-on-dark:hover {
  color: #0a192f;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 255, 255, 0.2);
}

/* Store Buttons */
.store-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

.store-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  background: rgba(255, 255, 255, 0.08);
  color: white;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-medium);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--transition-base);
  text-decoration: none;
}

.store-button:hover {
  color: white;
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.store-button svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.store-button .store-label {
  font-size: var(--font-size-xs);
  opacity: 0.6;
  display: block;
  line-height: 1;
}

.store-button .store-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  display: block;
  line-height: 1.3;
}

/* Glass Cards */
.card {
  background: var(--color-card-bg);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--color-card-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-base);
}

.card:hover {
  background: var(--color-card-bg-hover);
  transform: translateY(-4px);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary-light);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-lg);
}

.card p {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(99, 102, 241, 0.15);
  color: var(--color-primary-light);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  border: 1px solid rgba(99, 102, 241, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: var(--z-header);
  background: rgba(10, 25, 47, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  background: rgba(10, 25, 47, 0.9);
  border-bottom-color: var(--color-border);
}

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

.logo {
  font-family: var(--font-family-display);
  font-size: 2rem;
  font-weight: var(--font-weight-normal);
  background: var(--gradient-logo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.logo:hover {
  opacity: 0.9;
}

.site-nav {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

.site-nav a {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.site-nav a:hover {
  color: var(--color-text);
}

.nav-cta {
  background: var(--gradient-primary);
  color: white !important;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium) !important;
}

.nav-cta:hover {
  color: white !important;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.hamburger-line {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav open state */
.site-nav.open {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 25, 47, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-8) var(--space-6);
  gap: var(--space-6);
  align-items: flex-start;
  z-index: var(--z-overlay);
}

.site-nav.open a {
  font-size: var(--font-size-xl);
  color: var(--color-text);
}

@media (min-width: 768px) {
  .site-nav {
    display: flex;
  }
  .mobile-menu-toggle {
    display: none;
  }
}

/* Footer */
.site-footer {
  background: rgba(5, 12, 24, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border-light);
  color: var(--color-text-muted);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

.footer-brand .logo {
  display: inline-block;
  margin-bottom: var(--space-3);
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.footer-social {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.footer-social a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-social a:hover {
  color: white;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links h4 {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}