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

:root {
  --color-primary: #525252;
  --color-secondary: #262626;
  --color-accent: #a3e635;
  --color-bg: #fafafa;
  --color-surface: #f5f5f5;
  --color-text: #171717;
  --color-text-muted: #737373;
  --color-border: #d4d4d4;
  --font-main: 'Trebuchet MS', 'Lucida Sans', 'Lucida Grande', sans-serif;
  --max-width: 1100px;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.12), 0 10px 10px rgba(0, 0, 0, 0.04);
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow-x: hidden;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-secondary);
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-secondary);
  margin-bottom: 0.875rem;
  letter-spacing: -0.3px;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-primary);
  margin-bottom: 0.625rem;
}

h5 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

h6 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--color-text);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
}

a:hover {
  color: var(--color-secondary);
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

strong {
  font-weight: 700;
  color: var(--color-secondary);
}

em {
  font-style: italic;
  color: var(--color-primary);
}

blockquote {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  position: relative;
}

blockquote::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-primary));
  border-radius: var(--radius) 0 0 var(--radius);
}

blockquote p {
  margin-bottom: 0.5rem;
  color: var(--color-text);
  font-style: italic;
}

blockquote p:last-child {
  margin-bottom: 0;
}

::selection {
  background-color: var(--color-accent);
  color: var(--color-secondary);
}

.site-header {
  background-color: white;
  border-bottom: 2px solid var(--color-border);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-header h1 {
  margin: 0;
  font-size: 1.75rem;
}

.site-header a {
  color: var(--color-secondary);
  font-weight: 700;
}

.site-header a:hover {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.site-nav a {
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.site-nav a:hover {
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.site-nav a.active {
  background-color: var(--color-accent);
  color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
}

.site-main {
  width: 100%;
  padding: 2rem 1.5rem;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  font-size: 0.875rem;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.breadcrumbs a::after {
  content: '/';
  color: var(--color-border);
  margin-left: 0.5rem;
}

.breadcrumbs a:last-child::after {
  display: none;
}

.breadcrumbs span {
  color: var(--color-text);
  font-weight: 600;
}

.card {
  background-color: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  border-radius: var(--radius);
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: -1;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.card:hover::before {
  opacity: 0.1;
}

.card h2 {
  margin-top: 0;
}

.card h3 {
  margin-top: 0;
}

.card-header {
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.card-body {
  margin-bottom: 1rem;
}

.card-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.card-stacked {
  position: relative;
  margin-bottom: 2.5rem;
}

.card-stacked::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: -8px;
  bottom: -8px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  z-index: -1;
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background-color: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

table thead {
  background-color: var(--color-secondary);
  color: white;
}

table th {
  padding: 1rem;
  text-align: left;
  font-weight: 700;
  border-bottom: 2px solid var(--color-accent);
}

table td {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
}

table tbody tr {
  transition: background-color 0.2s ease;
}

table tbody tr:nth-child(even) {
  background-color: var(--color-surface);
}

table tbody tr:hover {
  background-color: rgba(163, 230, 53, 0.1);
  cursor: pointer;
}

table tbody tr:last-child td {
  border-bottom: none;
}

details {
  background-color: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

details:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

details[open] {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--color-secondary);
  padding: 0.5rem 0;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s ease;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-accent);
  font-weight: 700;
  transition: transform 0.2s ease;
}

details[open] summary::after {
  content: '−';
  transform: rotate(90deg);
}

summary:hover {
  color: var(--color-accent);
}

details > *:not(summary) {
  margin-top: 1rem;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.site-footer {
  background-color: var(--color-secondary);
  color: white;
  padding: 2rem 1.5rem;
  margin-top: 3rem;
  border-top: 4px solid var(--color-accent);
  box-shadow: var(--shadow-xl);
}

.site-footer .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.site-footer a {
  color: var(--color-accent);
}

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

.site-footer p {
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  list-style: none;
}

.footer-links a {
  padding: 0.5rem 1rem;
  background-color: rgba(163, 230, 53, 0.1);
  border-radius: var(--radius);
  transition: background-color 0.2s ease;
}

.footer-links a:hover {
  background-color: var(--color-accent);
  color: var(--color-secondary);
}

button {
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  background-color: var(--color-accent);
  color: var(--color-secondary);
  cursor: pointer;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--shadow-sm);
}

button:hover {
  background-color: #8dc729;
  box-shadow: var(--shadow-md);
}

button:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

button:active {
  transform: translateY(1px);
}

input[type="text"],
input[type="search"],
input[type="email"],
textarea {
  font-family: var(--font-main);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background-color: white;
  color: var(--color-text);
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:hover,
input[type="search"]:hover,
input[type="email"]:hover,
textarea:hover {
  border-color: var(--color-primary);
}

input[type="text"]:focus,
input[type="search"]:focus,
input[type="email"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(163, 230, 53, 0.2);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

@media (min-width: 768px) {
  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

  .site-header .container {
    padding: 1.25rem 2rem;
  }

  .site-main {
    padding: 3rem 2rem;
  }

  .site-footer .container {
    grid-template-columns: 2fr 1fr;
  }

  .site-nav {
    gap: 2rem;
  }

  .card {
    padding: 2rem;
  }

  .card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .card-grid .card {
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .site-header h1 {
    font-size: 2rem;
  }

  .site-main {
    padding: 4rem 2rem;
  }

  .site-footer .container {
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
  }

  .card-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .card-featured {
    grid-column: span 2;
  }
}

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

  details > *:not(summary) {
    animation: none;
  }

  summary::after {
    transition: none;
  }
}

@media print {
  .site-header,
  .site-nav,
  .site-footer,
  .breadcrumbs {
    display: none;
  }

  .site-main {
    padding: 0;
    max-width: 100%;
  }

  .card {
    box-shadow: none;
    border: 1px solid var(--color-border);
    page-break-inside: avoid;
  }

  a {
    color: var(--color-text);
    text-decoration: underline;
  }

  body {
    background-color: white;
  }

  details {
    border: 1px solid var(--color-border);
  }

  details[open] {
    box-shadow: none;
  }
}