/* Logo */

.logo {
  display: block;
  width: 48px;
  height: 48px;
  background: linear-gradient(
    135deg,
    var(--color-green-100),
    var(--color-green-200),
    var(--color-green-300),
    var(--color-green-400),
    var(--color-green-500)
  );
  -webkit-mask-image: url('/static/images/logo.png');
  mask-image: url('/static/images/logo.png');
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.logo:hover {
  transform: scale(1.05);
}

.logo--sm {
  width: 32px;
  height: 32px;
}

.logo--lg {
  width: 60px;
  height: 60px;
}

@media (min-width: 768px) {
  .logo--lg {
    width: 72px;
    height: 72px;
  }
}

@media (min-width: 1200px) {
  .logo--lg {
    width: 88px;
    height: 88px;
  }
}

/* Header */

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) 0;
}

.header__container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.header__brand {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  flex-shrink: 0;
}

.header__logo {
  font-size: var(--font-size-xl);
}

.header__name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-family: var(--font-family-mono);
}

/* Navigation */

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__link {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-primary-light);
  background-color: rgba(62, 229, 0, 0.08);
}

.nav__link:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Footer */

.footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0;
}

.footer__container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.footer__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-1);
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.footer__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  grid-column: 1 / -1;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-6);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Responsive - Tablet */

@media (min-width: 768px) {
  .header {
    padding: var(--space-4) 0;
  }

  .nav {
    gap: var(--space-4);
  }

  .nav__link {
    font-size: var(--font-size-base);
    padding: var(--space-2) var(--space-4);
  }

  .footer__container {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

/* Responsive - Desktop */

@media (min-width: 1200px) {
  :root {
    --container-padding: var(--space-8);
  }
}

/* Reduced Motion */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}