/* 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: #a21caf;
  --color-secondary: #701a75;
  --color-accent: #f0abfc;
  --color-bg: #fefcff;
  --color-surface: #fdf4ff;
  --color-text: #4a044e;
  --color-text-muted: #8b5f90;
  --color-border: #e0c8e4;
  --font-main: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1100px;
  --radius: 2rem;
  --radius-sm: 1rem;
  --radius-pill: 100px;
  --radius-circle: 50%;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --transition: 0.2s ease;
}

/* Base Typography */
body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 1.125rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-secondary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1.25rem;
  max-width: 70ch;
}

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

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

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

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

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

blockquote {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg) 100%);
  border-left: 6px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-text);
  box-shadow: 0 4px 12px rgba(162, 28, 175, 0.08);
}

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

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

/* Layout Structure */
.site-header {
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
  border-bottom: 2px solid var(--color-border);
  padding: var(--spacing-md) var(--spacing-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.site-nav {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  align-items: center;
}

.site-nav a {
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: transparent;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 600;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.site-nav a:hover {
  background-color: var(--color-accent);
  border-color: var(--color-primary);
  color: var(--color-secondary);
  transform: translateY(-2px);
  border-bottom: 2px solid var(--color-primary);
}

.site-main {
  min-height: 70vh;
  padding: var(--spacing-lg) var(--spacing-sm);
}

.site-footer {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 100%);
  border-top: 2px solid var(--color-border);
  padding: var(--spacing-lg) var(--spacing-sm);
  margin-top: var(--spacing-xl);
  text-align: center;
}

.site-footer p {
  margin: 0 auto;
  color: var(--color-text-muted);
}

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

.breadcrumbs {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background-color: var(--color-surface);
  border-radius: var(--radius-pill);
  width: fit-content;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  border-bottom: none;
}

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

.breadcrumbs a::after {
  content: '›';
  margin-left: var(--spacing-xs);
  color: var(--color-border);
}

.breadcrumbs a:last-child::after {
  content: '';
}

/* Components */
.card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  box-shadow: 0 2px 8px rgba(112, 26, 117, 0.05);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(162, 28, 175, 0.15);
  border-color: var(--color-accent);
}

.card h3 {
  margin-top: 0;
  position: relative;
  padding-left: var(--spacing-md);
}

.card h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: var(--radius-circle);
  box-shadow: 0 0 0 4px var(--color-accent);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--spacing-md) 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
}

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

th {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-bg);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

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

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

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

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

details {
  margin: var(--spacing-md) 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
  transition: border-color var(--transition);
}

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

summary {
  padding: var(--spacing-md);
  cursor: pointer;
  font-weight: 700;
  color: var(--color-secondary);
  background: linear-gradient(90deg, var(--color-surface) 0%, var(--color-bg) 100%);
  transition: background-color var(--transition), color var(--transition);
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  border-radius: var(--radius-sm);
}

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

summary::before {
  content: '';
  width: 24px;
  height: 24px;
  background-color: var(--color-primary);
  border-radius: var(--radius-circle);
  flex-shrink: 0;
  transition: transform var(--transition), background-color var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

details[open] summary::before {
  transform: rotate(90deg);
  background-color: var(--color-secondary);
}

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

details > *:not(summary) {
  padding: 0 var(--spacing-md) var(--spacing-md);
  animation: slideDown 0.2s ease;
}

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

/* Grid Layouts */
@media (min-width: 768px) {
  .site-header .container {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
  }

  .site-nav {
    justify-content: flex-end;
  }

  .card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  table {
    font-size: 1rem;
  }

  blockquote {
    margin-left: var(--spacing-md);
    margin-right: var(--spacing-md);
  }
}

@media (min-width: 1024px) {
  .site-header {
    padding: var(--spacing-md) var(--spacing-lg);
  }

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

  .card-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
  }

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

  .site-nav a {
    padding: var(--spacing-sm) var(--spacing-lg);
  }
}

/* Focus Styles */
button:focus-visible,
details:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Additional Link Styles */
.site-header a {
  border-bottom: none;
}

.site-footer a {
  color: var(--color-primary);
  font-weight: 600;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}

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

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

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

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

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

  .container {
    max-width: 100%;
  }

  body {
    background: white;
    color: black;
  }

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

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

  table {
    break-inside: avoid;
  }
}

/* Utility Classes */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

/* Logo/Brand Styling */
.site-header h1,
.site-header .logo {
  font-size: 1.75rem;
  margin: 0;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.site-header h1::before,
.site-header .logo::before {
  content: '';
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-radius: var(--radius-circle);
  box-shadow: 0 4px 12px rgba(162, 28, 175, 0.3);
  transition: transform var(--transition);
}

.site-header h1:hover::before,
.site-header .logo:hover::before {
  transform: rotate(180deg) scale(1.1);
}

/* Content Sections */
section {
  margin-bottom: var(--spacing-xl);
}

section:first-of-type {
  margin-top: var(--spacing-md);
}

hr {
  border: none;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent) 50%, transparent 100%);
  margin: var(--spacing-lg) 0;
  border-radius: var(--radius-pill);
}

/* Button Styles */
button,
.button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-bg);
  border: none;
  border-radius: var(--radius-pill);
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 12px rgba(162, 28, 175, 0.3);
}

button:hover,
.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(162, 28, 175, 0.4);
  border-bottom: none;
}

/* List Styles */
ul,
ol {
  margin-left: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-xs);
  padding-left: var(--spacing-xs);
}

ul li::marker {
  color: var(--color-primary);
}

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

/* Code Styles */
code,
pre {
  font-family: 'Courier New', monospace;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

code {
  padding: 0.125rem 0.375rem;
  font-size: 0.9em;
  color: var(--color-secondary);
}

pre {
  padding: var(--spacing-md);
  overflow-x: auto;
  margin: var(--spacing-md) 0;
  border-radius: var(--radius);
}

pre code {
  border: none;
  padding: 0;
  background: transparent;
}