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

:root {
  --color-primary: #57713b;
  --color-secondary: #3a4d25;
  --color-accent: #c8daa8;
  --color-bg: #fcfdf8;
  --color-surface: #f4f7ee;
  --color-text: #252e18;
  --color-text-muted: #6e7d5a;
  --color-border: #d0d8c2;
  --font-main: 'Verdana', 'Geneva', 'Tahoma', sans-serif;
  --max-width: 1100px;
  --radius: 6px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  font-size: 1rem;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-secondary);
  margin-bottom: 1.25rem;
}

h1 {
  font-size: 2.75rem;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.25rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.4rem;
}

h5 {
  font-size: 1.15rem;
}

h6 {
  font-size: 1rem;
  font-weight: 600;
}

p {
  margin-bottom: 1.5rem;
}

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

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

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

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

blockquote {
  margin: 2.5rem 0 2.5rem 1.5rem;
  padding: 1.5rem 1.75rem;
  background-color: var(--color-surface);
  border-left: 5px solid var(--color-primary);
  font-style: italic;
  color: var(--color-text-muted);
  position: relative;
}

blockquote::before {
  content: '';
  position: absolute;
  top: -8px;
  left: -8px;
  right: 8px;
  bottom: 8px;
  background-color: var(--color-accent);
  opacity: 0.3;
  z-index: -1;
  border-radius: var(--radius);
}

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

.site-header {
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(87, 113, 59, 0.08);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.site-header h1 {
  margin: 0;
  font-size: 1.75rem;
  color: var(--color-primary);
}

.site-nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.site-nav a {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.site-nav a:hover {
  background-color: var(--color-accent);
  color: var(--color-secondary);
  box-shadow: 0 2px 6px rgba(87, 113, 59, 0.15);
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width 0.2s ease, left 0.2s ease;
}

.site-nav a:hover::after {
  width: 80%;
  left: 10%;
}

.site-main {
  min-height: calc(100vh - 400px);
  padding: 4rem 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.breadcrumbs {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  padding: 1rem 1.5rem;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  position: relative;
  left: -1rem;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.breadcrumbs span {
  color: var(--color-border);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  right: -12px;
  bottom: -12px;
  background-color: var(--color-accent);
  opacity: 0;
  z-index: -1;
  border-radius: var(--radius);
  transition: opacity 0.2s ease;
}

.card:hover {
  box-shadow: 0 6px 20px rgba(87, 113, 59, 0.12);
  border-color: var(--color-primary);
}

.card:hover::before {
  opacity: 0.4;
}

.card h2, .card h3, .card h4 {
  margin-top: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2.5rem 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

table::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: -8px;
  bottom: -8px;
  background-color: var(--color-accent);
  opacity: 0.2;
  z-index: -1;
  border-radius: var(--radius);
}

thead {
  background-color: var(--color-primary);
  color: var(--color-bg);
}

th {
  padding: 1rem 1.25rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

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

tbody tr:nth-child(even) {
  background-color: rgba(200, 218, 168, 0.15);
}

tbody tr:hover {
  background-color: var(--color-accent);
}

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

details {
  margin: 2rem 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
  overflow: hidden;
  transition: border-color 0.2s ease;
  position: relative;
  left: 1.5rem;
}

details::before {
  content: '';
  position: absolute;
  top: 10px;
  left: -10px;
  width: 4px;
  height: calc(100% - 20px);
  background-color: var(--color-primary);
  opacity: 0;
  transition: opacity 0.2s ease;
}

details[open] {
  border-color: var(--color-primary);
}

details[open]::before {
  opacity: 1;
}

summary {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  font-weight: 700;
  color: var(--color-secondary);
  list-style: none;
  transition: background-color 0.2s ease, color 0.2s ease;
  user-select: none;
  position: relative;
}

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

summary::after {
  content: '+';
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: transform 0.2s ease;
}

details[open] summary::after {
  content: '−';
  transform: translateY(-50%) rotate(180deg);
}

summary:hover {
  background-color: rgba(200, 218, 168, 0.3);
}

details div {
  padding: 1.5rem;
  border-top: 1px solid var(--color-border);
  animation: slideDown 0.2s ease;
}

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

.site-footer {
  background-color: var(--color-secondary);
  color: var(--color-accent);
  padding: 3rem 0 2rem;
  margin-top: 6rem;
  border-top: 4px solid var(--color-primary);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 5%;
  right: 5%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border), transparent);
}

.site-footer a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.site-footer a:hover {
  color: var(--color-bg);
  text-decoration-color: var(--color-bg);
}

.site-footer .container {
  display: grid;
  gap: 2rem;
}

.site-footer p {
  margin-bottom: 0.75rem;
}

ul {
  list-style-position: inside;
  margin: 1.5rem 0 1.5rem 1.5rem;
}

ol {
  list-style-position: inside;
  margin: 1.5rem 0 1.5rem 1.5rem;
}

li {
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

button, input[type="submit"] {
  background-color: var(--color-primary);
  color: var(--color-bg);
  border: none;
  padding: 0.85rem 2rem;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

button:hover, input[type="submit"]:hover {
  background-color: var(--color-secondary);
  box-shadow: 0 4px 12px rgba(87, 113, 59, 0.25);
}

button:focus-visible, input[type="submit"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

input[type="text"], input[type="email"], input[type="search"], textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-main);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:focus, input[type="email"]:focus, input[type="search"]:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(87, 113, 59, 0.15);
}

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

@media (min-width: 768px) {
  h1 {
    font-size: 3.5rem;
  }

  h2 {
    font-size: 2.75rem;
  }

  h3 {
    font-size: 2rem;
  }

  .site-main {
    padding: 5rem 0;
  }

  .site-header .container {
    flex-wrap: nowrap;
  }

  .site-footer .container {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .container {
    padding: 0 2rem;
  }

  blockquote {
    margin-left: 3rem;
    padding: 2rem 2.5rem;
  }

  .card {
    padding: 2.5rem;
  }

  details {
    left: 2.5rem;
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 4rem;
  }

  .site-main {
    padding: 6rem 0;
  }

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

  .site-nav {
    gap: 1rem;
  }

  .site-nav a {
    padding: 0.7rem 1.5rem;
  }

  blockquote {
    margin-left: 4rem;
  }

  .breadcrumbs {
    left: -2rem;
  }

  details {
    left: 3rem;
  }
}

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

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

  .site-main {
    padding: 0;
  }

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

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

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

  table {
    page-break-inside: avoid;
  }
}