/* =========================================
   RED SUNBURST COLOR SCHEME
   Crimson hues burst with vivid pink and glowing gold
   ========================================= */

:root {
  /* Primary Colors - Red Sunburst */
  --color-crimson: #dc143c;
  --color-crimson-dark: #8b0a1a;
  --color-crimson-light: #e74c3c;
  --color-pink-vivid: #ff1493;
  --color-pink-soft: #ff69b4;
  --color-gold-glow: #ffd700;
  --color-gold-light: #ffed4e;
  --color-gold-dark: #daa520;

  /* Neutral Colors */
  --color-white: #ffffff;
  --color-bg-light: #f8f7f5;
  --color-bg-lighter: #faf9f7;
  --color-text-dark: #1a1a1a;
  --color-text-gray: #555555;
  --color-text-light: #999999;
  --color-border: #e8e8e8;
  --color-border-dark: #d0d0d0;

  /* Semantic Colors */
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-error: #e74c3c;
  --color-info: #3498db;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Typography */
  --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto",
    "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans",
    "Helvetica Neue", sans-serif;
  --font-family-mono: "Courier New", "Courier", monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  --shadow-crimson: 0 10px 25px rgba(220, 20, 60, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Header Height */
  --header-height: 72px;
}

/* =========================================
   GLOBAL STYLES
   ========================================= */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--spacing-md));
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
}

/* =========================================
   TYPOGRAPHY
   ========================================= */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-dark);
}

h1 {
  font-size: var(--font-size-4xl);
  background: linear-gradient(
    135deg,
    var(--color-crimson) 0%,
    var(--color-pink-vivid) 50%,
    var(--color-gold-glow) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: var(--font-size-3xl);
  color: var(--color-crimson);
  border-bottom: 3px solid var(--color-gold-glow);
  padding-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-dark);
}

h4,
h5,
h6 {
  font-size: var(--font-size-lg);
  color: var(--color-text-gray);
}

p {
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-gray);
}

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

a {
  color: var(--color-crimson);
  text-decoration: none;
  transition: all var(--transition-base);
  font-weight: 500;
}

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

strong,
b {
  font-weight: 600;
  color: var(--color-text-dark);
}

em,
i {
  font-style: italic;
}

/* Code inline */
code:not(pre code) {
  background-color: var(--color-border);
  color: var(--color-crimson);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
}

/* =========================================
   LAYOUT
   ========================================= */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* =========================================
   HEADER & NAVIGATION
   ========================================= */

header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0 var(--spacing-lg);
}

.logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  background: linear-gradient(
    135deg,
    var(--color-crimson) 0%,
    var(--color-pink-vivid) 50%,
    var(--color-gold-glow) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.logo:hover {
  transform: scale(1.05);
}

.logo svg {
  width: 32px;
  height: 32px;
}

nav {
  display: flex;
  align-items: center;
  height: 100%;
}

nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-2xl);
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: 0;
}

nav a {
  font-size: var(--font-size-base);
  color: var(--color-text-dark);
  position: relative;
  transition: color var(--transition-base);
}

nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--color-crimson),
    var(--color-gold-glow)
  );
  transition: width var(--transition-base);
}

nav a:hover {
  color: var(--color-crimson);
}

nav a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 0;
}

.nav-toggle span {
  width: 24px;
  height: 3px;
  background: var(--color-crimson);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

/* =========================================
   FOOTER
   ========================================= */

footer {
  background: linear-gradient(135deg, var(--color-crimson-dark) 0%, #4a0a14 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--color-gold-light);
  border-bottom: 2px solid var(--color-gold-glow);
  padding-bottom: var(--spacing-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: var(--spacing-md);
}

.footer-section a {
  color: var(--color-white);
  transition: all var(--transition-base);
}

.footer-section a:hover {
  color: var(--color-gold-light);
  padding-left: var(--spacing-sm);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-xl);
  text-align: center;
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

/* =========================================
   HERO SECTION
   ========================================= */

.hero {
  background: linear-gradient(135deg, var(--color-crimson) 0%, #8b0a1a 50%, var(--color-gold-dark) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) var(--spacing-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 20, 147, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(20px);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
  color: var(--color-white);
  background: none;
  -webkit-text-fill-color: unset;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  color: var(--color-white);
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* =========================================
   BUTTONS & CTA
   ========================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-crimson) 0%, var(--color-pink-vivid) 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-crimson);
}

.btn-primary:hover {
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(220, 20, 60, 0.35);
  text-decoration: none;
}

.btn-secondary {
  background: var(--color-gold-glow);
  color: var(--color-crimson);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  color: var(--color-crimson);
  background: var(--color-gold-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--color-white);
  color: var(--color-white);
}

.btn-outline:hover {
  color: var(--color-crimson);
  background: var(--color-white);
  text-decoration: none;
}

.btn svg {
  width: 20px;
  height: 20px;
}

/* =========================================
   CONTENT SECTIONS
   ========================================= */

main {
  padding: var(--spacing-3xl) var(--spacing-lg);
  min-height: calc(100vh - var(--header-height) - 300px);
}

.breadcrumbs {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  font-size: var(--font-size-sm);
}

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

.breadcrumbs span {
  color: var(--color-text-light);
  margin: 0 var(--spacing-sm);
}

.page-header {
  margin-bottom: var(--spacing-3xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 3px solid var(--color-gold-glow);
}

.article-content {
  line-height: var(--line-height-relaxed);
}

.article-content section {
  margin-bottom: var(--spacing-2xl);
}

.article-content h2 {
  margin-top: var(--spacing-2xl);
}

/* =========================================
   CODE BLOCKS
   ========================================= */

pre {
  background-color: var(--color-text-dark);
  color: #e0e0e0;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: var(--spacing-lg);
  position: relative;
  border-left: 4px solid var(--color-crimson);
  box-shadow: var(--shadow-lg);
}

pre code {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.code-block-wrapper {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.code-copy-btn {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--color-gold-glow);
  color: var(--color-text-dark);
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: all var(--transition-base);
  z-index: 10;
}

.code-copy-btn:hover {
  background: var(--color-gold-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* =========================================
   TABLES
   ========================================= */

.table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-white);
}

thead {
  background: linear-gradient(
    135deg,
    var(--color-crimson) 0%,
    var(--color-gold-dark) 100%
  );
  color: var(--color-white);
}

th {
  padding: var(--spacing-lg);
  text-align: left;
  font-weight: 600;
  border: 1px solid var(--color-border-dark);
}

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

tbody tr:hover {
  background-color: var(--color-bg-lighter);
  transition: background-color var(--transition-base);
}

tbody tr:last-child td {
  border-bottom: 1px solid var(--color-border-dark);
}

/* =========================================
   LISTS
   ========================================= */

ul,
ol {
  margin-bottom: var(--spacing-lg);
  margin-left: var(--spacing-xl);
}

li {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-gray);
}

ul li::marker {
  color: var(--color-crimson);
  font-weight: bold;
}

ol li::marker {
  color: var(--color-crimson);
  font-weight: bold;
}

/* =========================================
   CARDS & FEATURED SECTIONS
   ========================================= */

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border-top: 4px solid var(--color-gold-glow);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-crimson);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

/* =========================================
   NAVIGATION LINKS
   ========================================= */

.nav-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--color-border);
}

.nav-link {
  display: block;
  padding: var(--spacing-lg);
  background: var(--color-bg-lighter);
  border-left: 4px solid var(--color-gold-glow);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-decoration: none;
}

.nav-link:hover {
  background: var(--color-white);
  border-left-color: var(--color-crimson);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.nav-link h4 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-crimson);
}

.nav-link p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* =========================================
   RESPONSIVE DESIGN
   ========================================= */

@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.5rem;
    --header-height: 60px;
  }

  .hero {
    padding: var(--spacing-2xl) var(--spacing-lg);
  }

  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .hero p {
    font-size: var(--font-size-base);
  }

  .nav-toggle {
    display: flex;
  }

  nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    box-shadow: var(--shadow-lg);
  }

  nav.active {
    display: flex;
  }

  nav ul {
    flex-direction: column;
    gap: 0;
    padding: var(--spacing-lg);
  }

  nav li {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  table {
    font-size: var(--font-size-sm);
  }

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

  .breadcrumbs {
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --font-size-lg: 1rem;
  }

  .logo {
    font-size: var(--font-size-xl);
  }

  h1 {
    font-size: var(--font-size-2xl);
  }

  h2 {
    font-size: var(--font-size-xl);
  }

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

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

  pre {
    padding: var(--spacing-md);
    font-size: var(--font-size-xs);
  }
}

/* =========================================
   SYNTAX HIGHLIGHTING
   ========================================= */

/* Prism token styles emitted by @11ty/eleventy-plugin-syntaxhighlight */
pre[class*="language-"] {
  background: #111827;
  color: #e5e7eb;
}

code[class*="language-"] {
  color: #e5e7eb;
}

.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: #9ca3af;
}

.token.punctuation {
  color: #d1d5db;
}

.token.property,
.token.tag,
.token.constant,
.token.symbol,
.token.deleted {
  color: #fca5a5;
}

.token.boolean,
.token.number {
  color: #fbbf24;
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
  color: #86efac;
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string {
  color: #93c5fd;
}

.token.atrule,
.token.attr-value,
.token.keyword {
  color: #c4b5fd;
}

.token.function,
.token.class-name {
  color: #67e8f9;
}

.token.regex,
.token.important,
.token.variable {
  color: #f9a8d4;
}

/* =========================================
   ANIMATIONS & EFFECTS
   ========================================= */

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

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* Print styles */
@media print {
  header,
  footer,
  .nav-links {
    display: none;
  }

  body {
    background: white;
  }

  a {
    color: inherit;
  }
}