:root {
  --color-primary: #2B2A33;
  --color-secondary: #3E5A6B;
  --color-accent: #C06B2B;
  --color-background: #F6F3EE;
  --color-surface: #FFFFFF;
  --color-text: #17161B;
  --color-text-muted: #5C5A66;
  --color-border: #D7D2C8;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(23, 22, 27, 0.10);
  --maxw: 1120px;
}

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

html {
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background-color: var(--color-background);
  font-weight: 400;
  letter-spacing: -0.011em;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-top: 2.5rem;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  margin-top: 2rem;
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

.site-container {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  gap: 0;
}

header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem 1rem;
}

.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.site-name {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-primary);
}

.site-name a {
  color: var(--color-primary);
  border-bottom: none;
}

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

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

nav a {
  font-weight: 500;
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid transparent;
}

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 1rem;
  width: 100%;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
}

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

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

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

section {
  margin-bottom: 3rem;
}

section:last-child {
  margin-bottom: 0;
}

aside {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
  box-shadow: var(--shadow);
}

aside h2,
aside h3 {
  margin-top: 0;
  font-size: 1.125rem;
}

blockquote {
  background-color: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  padding: clamp(1rem, 2vw, 1.5rem);
  margin: 1.5rem 0;
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  font-style: italic;
  color: var(--color-text-muted);
  border-radius: 0 var(--radius) var(--radius) 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 0.9375rem;
}

.table-container {
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

caption {
  text-align: left;
  font-weight: 600;
  padding: 1rem;
  background-color: var(--color-primary);
  color: var(--color-surface);
  font-size: 1rem;
  letter-spacing: -0.015em;
}

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

th {
  text-align: left;
  padding: 0.875rem 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-bottom: 2px solid var(--color-border);
}

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

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

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

tbody tr:hover {
  background-color: rgba(192, 107, 43, 0.08);
}

details {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
  transition: border-color 0.2s ease;
}

details[open] {
  border-left: 4px solid var(--color-accent);
  padding-left: calc(1rem - 3px);
}

summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--color-primary);
  list-style: none;
  display: flex;
  align-items: baseline;
  transition: color 0.2s ease, background-color 0.2s ease;
  padding: 0.5rem;
  margin: -0.5rem;
  border-radius: calc(var(--radius) - 2px);
  user-select: none;
}

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

summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 0.75rem;
  transition: transform 0.2s ease;
  color: var(--color-accent);
  font-size: 0.875em;
}

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

summary:hover {
  color: var(--color-accent);
  background-color: rgba(192, 107, 43, 0.05);
}

summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: calc(var(--radius) - 2px);
}

details[open] summary {
  margin-bottom: 1rem;
}

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

footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 2rem 1rem;
  margin-top: 3rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  text-align: center;
}

@media (min-width: 768px) {
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  main {
    padding: 3rem 2rem;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2rem;
  }

  main > * {
    grid-column: 1 / -1;
  }

  section.has-aside {
    grid-column: 1 / 7;
  }

  aside.side-content {
    grid-column: 7 / -1;
    margin: 0;
    align-self: start;
  }

  thead th {
    position: sticky;
    top: 0;
    background-color: var(--color-primary);
    z-index: 10;
  }

  .two-column-list {
    columns: 2;
    column-gap: 2rem;
  }
}

@media (min-width: 1024px) {
  main {
    grid-template-columns: repeat(12, 1fr);
    gap: 2rem;
  }

  section.has-aside {
    grid-column: 1 / 9;
  }

  aside.side-content {
    grid-column: 9 / -1;
  }
}

@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;
  }
}

@media print {
  body {
    background-color: white;
    color: black;
    font-size: 12pt;
  }

  header,
  footer,
  nav,
  aside {
    display: none;
  }

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

  a {
    color: black;
    text-decoration: underline;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.875em;
  }

  table {
    page-break-inside: avoid;
  }

  h1, h2, h3 {
    page-break-after: avoid;
  }

  details {
    border: 1px solid black;
  }

  summary::before {
    content: "";
  }

  details[open] summary::before {
    content: "";
  }
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

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

:focus {
  outline: none;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}