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

:root {
  --color-primary: #a0522d;
  --color-secondary: #6b3410;
  --color-accent: #f4c89a;
  --color-bg: #fffdf8;
  --color-surface: #fdf5eb;
  --color-text: #3e1d08;
  --color-text-muted: #8d7560;
  --color-border: #ddd0be;
  --font-main: 'Verdana', 'Geneva', 'Tahoma', sans-serif;
  --max-width: 1100px;
  --radius: 12px;
}

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: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  color: var(--color-secondary);
}

h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
  border-bottom: 4px solid var(--color-primary);
  padding-bottom: 0.5rem;
  display: inline-block;
}

h2 {
  font-size: 1.875rem;
  position: relative;
  padding-left: 1rem;
}

h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--color-primary);
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

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

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

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

blockquote {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  background-color: var(--color-surface);
  border-left: 6px solid var(--color-primary);
  border-right: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 3px 3px 8px rgba(107, 52, 16, 0.08);
  position: relative;
}

blockquote::after {
  content: '';
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 20px;
  height: 20px;
  background-color: var(--color-accent);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

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

.site-header {
  background-color: var(--color-surface);
  border-bottom: 3px solid var(--color-border);
  box-shadow: 0 4px 12px rgba(62, 29, 8, 0.1);
  position: relative;
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 50%, var(--color-primary) 100%);
}

.site-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-nav li {
  flex: 1 1 auto;
}

.site-nav a {
  display: block;
  padding: 0.75rem 1.25rem;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  color: var(--color-text);
  text-align: center;
  font-weight: 600;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  border-bottom: 2px solid var(--color-border);
}

.site-nav a:hover {
  background-color: var(--color-accent);
  border-color: var(--color-primary);
  box-shadow: 2px 2px 6px rgba(107, 52, 16, 0.15);
  color: var(--color-secondary);
}

.site-main {
  flex: 1;
  padding: 2rem 1rem;
}

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

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  font-size: 0.875rem;
}

.breadcrumbs::before {
  content: '';
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  transform: rotate(45deg);
  margin-right: 0.25rem;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  border-bottom: 1px solid transparent;
}

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

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

.card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 4px 4px 10px rgba(62, 29, 8, 0.08);
  position: relative;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius) var(--radius) 0 0;
}

.card:hover {
  box-shadow: 6px 6px 14px rgba(62, 29, 8, 0.12);
  border-color: var(--color-primary);
}

.card h2, .card h3, .card h4 {
  margin-top: 0.5rem;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 1.5rem 0;
  border: 2px solid var(--color-border);
  background-color: var(--color-surface);
  box-shadow: 3px 3px 8px rgba(62, 29, 8, 0.08);
}

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

th {
  padding: 1rem;
  text-align: left;
  font-weight: 700;
  border-bottom: 3px solid var(--color-secondary);
  border-right: 1px solid var(--color-accent);
}

th:last-child {
  border-right: none;
}

td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
}

td:last-child {
  border-right: none;
}

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

tbody tr:nth-child(odd) {
  background-color: var(--color-bg);
}

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

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

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

details {
  margin: 1.5rem 0;
  border: 2px solid var(--color-border);
  background-color: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 3px 3px 8px rgba(62, 29, 8, 0.08);
}

summary {
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 700;
  color: var(--color-secondary);
  background-color: var(--color-surface);
  border-bottom: 2px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

summary::before {
  content: '';
  width: 0;
  height: 0;
  border-left: 6px solid var(--color-primary);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  transition: transform 0.2s ease;
}

details[open] summary::before {
  transform: rotate(90deg);
}

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

details[open] summary {
  border-bottom-color: var(--color-border);
  background-color: var(--color-bg);
}

details > *:not(summary) {
  padding: 1.25rem;
  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: 2rem 1rem;
  margin-top: auto;
  border-top: 4px solid var(--color-primary);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-primary) 0px,
    var(--color-primary) 20px,
    var(--color-accent) 20px,
    var(--color-accent) 40px
  );
}

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

.site-footer a:hover {
  color: var(--color-bg);
  border-bottom-color: var(--color-bg);
}

.site-footer p {
  margin-bottom: 0.5rem;
}

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

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(160, 82, 45, 0.15);
}

button,
input[type="submit"],
input[type="button"] {
  padding: 0.75rem 1.5rem;
  background-color: var(--color-primary);
  color: var(--color-bg);
  border: 2px solid var(--color-primary);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

button::after,
input[type="submit"]::after,
input[type="button"]::after {
  content: '';
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-secondary);
  z-index: -1;
  transition: bottom 0.2s ease, right 0.2s ease;
}

button:hover,
input[type="submit"]:hover,
input[type="button"]:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  box-shadow: 4px 4px 10px rgba(62, 29, 8, 0.15);
}

button:hover::after,
input[type="submit"]:hover::after,
input[type="button"]:hover::after {
  bottom: -2px;
  right: -2px;
}

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

ul:not(.site-nav ul) {
  list-style: none;
  margin: 1rem 0;
  padding-left: 0;
}

ul:not(.site-nav ul) li {
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  position: relative;
}

ul:not(.site-nav ul) li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

ol {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

ol li {
  margin-bottom: 0.5rem;
  padding-left: 0.5rem;
}

ol li::marker {
  color: var(--color-primary);
  font-weight: 700;
}

hr {
  border: none;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: 2rem 0;
  position: relative;
}

hr::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background-color: var(--color-primary);
}

@media (min-width: 768px) {
  body {
    font-size: 17px;
  }

  h1 {
    font-size: 2.75rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

  .site-nav {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
  }

  .site-nav ul {
    gap: 1rem;
  }

  .site-nav li {
    flex: 0 1 auto;
  }

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

  .card {
    padding: 2rem;
  }

  table {
    font-size: 0.95rem;
  }

  .breadcrumbs {
    padding: 1rem 1.5rem;
  }
}

@media (min-width: 1024px) {
  body {
    font-size: 18px;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.5rem;
  }

  .site-nav {
    padding: 1.5rem 3rem;
  }

  .site-nav a {
    padding: 0.875rem 1.5rem;
  }

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

  .card {
    padding: 2.5rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  blockquote {
    padding: 1.5rem 2rem;
  }

  details > *:not(summary) {
    padding: 1.5rem 2rem;
  }
}

@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::before {
    transition: none;
  }
}

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

  .site-header {
    border-bottom: 2px solid #000;
    box-shadow: none;
  }

  .site-main {
    padding: 1rem;
    max-width: 100%;
  }

  .container {
    max-width: 100%;
  }

  .card {
    border: 1px solid #000;
    box-shadow: none;
    page-break-inside: avoid;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  table {
    page-break-inside: avoid;
    border: 1px solid #000;
  }

  .site-footer {
    border-top: 2px solid #000;
    background-color: #fff;
    color: #000;
  }
}