/* CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

/* Root Variables */
:root {
  --color-primary: #dc2626;
  --color-secondary: #991b1b;
  --color-accent: #fca5a5;
  --color-bg: #ffffff;
  --color-surface: #fef2f2;
  --color-text: #1c1917;
  --color-text-muted: #78716c;
  --color-border: #e7e5e4;
  --font-main: 'Verdana', 'Geneva', 'Tahoma', sans-serif;
  --max-width: 1100px;
  --radius: 12px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --transition: 0.2s ease;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Base Typography */
body {
  font-family: var(--font-main);
  font-size: 16px;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

h1 {
  font-size: 2rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

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

p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition);
}

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

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

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

em {
  font-style: italic;
}

blockquote {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md);
  padding-left: var(--spacing-lg);
  background: rgba(254, 242, 242, 0.6);
  backdrop-filter: blur(10px);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-style: italic;
  color: var(--color-text-muted);
  box-shadow: var(--shadow-sm);
}

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

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

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Site Header */
.site-header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), background-color var(--transition);
}

.site-header:hover {
  box-shadow: var(--shadow-md);
}

.site-header .container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}

.site-header h1 {
  font-size: 1.5rem;
  margin-bottom: 0;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Site Navigation */
.site-nav {
  width: 100%;
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

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

.site-nav a {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(254, 242, 242, 0.5);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.site-nav a:hover {
  background: rgba(220, 38, 38, 0.1);
  border-color: var(--color-primary);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.site-nav a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Breadcrumbs */
.breadcrumbs {
  padding: var(--spacing-sm) 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.breadcrumbs ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  align-items: center;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.breadcrumbs li:not(:last-child)::after {
  content: '/';
  color: var(--color-border);
}

.breadcrumbs a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumbs a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* Main Content Area */
.site-main {
  flex: 1;
  padding: var(--spacing-lg) 0;
}

/* Card Component */
.card {
  background: rgba(254, 242, 242, 0.4);
  backdrop-filter: blur(15px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.card h2,
.card h3,
.card h4 {
  color: var(--color-primary);
  margin-top: 0;
}

/* Table Styles */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

table thead {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.1), rgba(153, 27, 27, 0.05));
  backdrop-filter: blur(8px);
}

table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 700;
  color: var(--color-secondary);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--color-primary);
}

table td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

table tbody tr {
  transition: background-color var(--transition);
}

table tbody tr:nth-child(odd) {
  background: rgba(254, 242, 242, 0.3);
}

table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.3);
}

table tbody tr:hover {
  background: rgba(252, 165, 165, 0.2);
}

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

/* Details/Summary Accordion */
details {
  margin: var(--spacing-md) 0;
  background: rgba(254, 242, 242, 0.5);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

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

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

summary {
  padding: var(--spacing-md);
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(8px);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition), color var(--transition);
}

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

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

details[open] summary::after {
  transform: rotate(45deg);
}

summary:hover {
  background: rgba(220, 38, 38, 0.1);
  color: var(--color-secondary);
}

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

details .content {
  padding: var(--spacing-md);
  color: var(--color-text);
  animation: slideDown 0.2s ease;
}

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

/* Site Footer */
.site-footer {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.05), rgba(153, 27, 27, 0.02));
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.site-footer .container {
  display: grid;
  gap: var(--spacing-lg);
}

.site-footer p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
}

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

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

/* Focus Visible Global */
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Responsive - Tablet 768px */
@media (min-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  h3 {
    font-size: 1.75rem;
  }

  .site-header .container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

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

  .site-nav {
    width: auto;
  }

  .site-nav ul {
    gap: var(--spacing-sm);
  }

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

  .site-nav a {
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .container {
    padding: 0 var(--spacing-lg);
  }

  .site-main {
    padding: var(--spacing-xl) 0;
  }

  .card {
    padding: var(--spacing-xl);
  }

  .site-footer .container {
    grid-template-columns: repeat(2, 1fr);
  }

  table th,
  table td {
    padding: var(--spacing-md) var(--spacing-lg);
  }
}

/* Responsive - Desktop 1024px */
@media (min-width: 1024px) {
  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.875rem;
  }

  .site-header h1 {
    font-size: 2rem;
  }

  .site-nav ul {
    gap: var(--spacing-md);
  }

  .site-footer .container {
    grid-template-columns: repeat(3, 1fr);
  }

  blockquote {
    padding: var(--spacing-lg);
    padding-left: var(--spacing-xl);
  }

  .card:hover {
    transform: translateY(-4px);
  }
}

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

  .card:hover {
    transform: none;
  }

  details[open] summary::after {
    transform: none;
  }

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

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

  .site-main {
    padding: 0;
  }

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

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

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

  body {
    background: #fff;
  }

  table {
    page-break-inside: avoid;
  }

  details {
    border: 1px solid #000;
  }

  summary::after {
    display: none;
  }
}