:root {
  --color-bg: #f9fafb;
  --color-text: #111827;
  --color-text-secondary: #4b5563;
  --color-border: #e5e7eb;
  --color-primary: #047857;
  --color-primary-light: #10b981;
  --color-white: #ffffff;
  --color-code-bg: #f8fafc;
  --transition-duration: 0.3s;
  --container-max-width: 80rem;
  --border-radius: 0.5rem;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.dark {
  --color-bg: #111827;
  --color-text: #f9fafb;
  --color-text-secondary: #9ca3af;
  --color-border: #374151;
  --color-primary: #10b981;
  --color-primary-light: #34d399;
  --color-code-bg: #1f2937;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  transition: background-color var(--transition-duration),
    color var(--transition-duration);
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.spinner-container {
  position: relative;
}

.spinner-outer,
.spinner-inner {
  border-radius: 50%;
  border-style: solid;
  border-color: transparent;
  border-width: 4px;
  animation: spin 1s linear infinite;
}

.spinner-outer {
  height: 6rem;
  width: 6rem;
  border-top-color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.spinner-inner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 4rem;
  width: 4rem;
  border-top-color: var(--color-primary-light);
  border-bottom-color: var(--color-primary-light);
  animation-delay: 150ms;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  transition: background-color var(--transition-duration);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}

.dark .navbar.scrolled {
  background-color: rgba(17, 24, 39, 0.8);
}

.nav-content {
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-icon {
  width: 2rem;
  height: 2rem;
  color: var(--color-primary);
}

.brand-text {
  font-size: 1.25rem;
  font-weight: bold;
}

.theme-toggle {
  padding: 0.5rem;
  background: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  color: var(--color-text-secondary);
}

.theme-toggle:hover {
  background-color: var(--color-border);
}

main {
  padding-top: 6rem;
  padding-bottom: 3rem;
}

.header {
  text-align: center;
  margin-bottom: 3rem;
}

.header h1 {
  font-size: 2.25rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.header p {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
}

.code-blocks {
  display: grid;
  gap: 2rem;
}

.code-block {
  background-color: var(--color-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.dark .code-block {
  background-color: var(--color-code-bg);
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background-color: var(--color-code-bg);
}

.code-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.copy-button {
  padding: 0.5rem;
  background: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: background-color var(--transition-duration);
}

.copy-button:hover {
  background-color: var(--color-border);
}

.copy-button.copied .copy-icon {
  color: var(--color-primary);
}

pre {
  padding: 1rem;
  overflow-x: auto;
}

code {
  font-family: ui-monospace, monospace;
  font-size: 0.875rem;
  color: var(--color-text);
}

footer {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  text-align: center;
  color: var(--color-text-secondary);
}

.dark footer {
  background-color: var(--color-code-bg);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}