/* Gas Town Hall - Steampunk Industrial Theme */

/* Font imports - Victorian/Industrial typography */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=Crimson+Text:ital,wght@0,400;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* CSS Custom Properties */
:root {
  /* Colors - Steampunk Industrial Palette */
  --color-bg: #E8DCC8;
  --color-bg-alt: #D9C9B0;
  --color-bg-dark: #3E2723;
  --color-surface: #F5E6D3;
  --color-surface-dark: #4A3728;

  /* Text colors */
  --color-text: #2C1810;
  --color-text-muted: #5D4037;
  --color-text-light: #F5E6D3;

  /* Accent colors */
  --color-accent: #8B2500;
  --color-accent-hover: #A0522D;
  --color-accent-light: #D4A574;

  /* Metal colors */
  --color-brass: #CD7F32;
  --color-bronze: #8B4513;
  --color-copper: #B87333;
  --color-steel: #70798C;
  --color-rust: #8B4513;

  /* Functional colors */
  --color-link: #8B2500;
  --color-link-hover: #5D4037;
  --color-border: #8B7355;
  --color-border-dark: #5D4037;
  --color-code-bg: #F0E6D8;

  /* Discord color */
  --color-discord: #5865F2;
  --color-discord-hover: #4752C4;

  /* Typography */
  --font-display: 'Cinzel', 'Times New Roman', serif;
  --font-body: 'Crimson Text', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

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

  /* Layout */
  --max-width: 1200px;
  --border-radius: 4px;

  /* Animation timing functions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-in-out-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  /* Animation durations */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

/* Keyframe Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes rotateClockwise {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes rotateCounterClockwise {
  from {
    transform: rotate(360deg);
  }
  to {
    transform: rotate(0deg);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

@keyframes steamRise {
  0% {
    opacity: 0;
    transform: translateY(0) scale(0.8);
  }
  50% {
    opacity: 0.6;
  }
  100% {
    opacity: 0;
    transform: translateY(-40px) scale(1.2);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow:
      inset 0 2px 4px rgba(0, 0, 0, 0.3),
      0 0 8px rgba(205, 127, 50, 0.4);
  }
  50% {
    box-shadow:
      inset 0 2px 4px rgba(0, 0, 0, 0.3),
      0 0 16px rgba(205, 127, 50, 0.7);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

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

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

/* Base styles */
html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  /* Fallback for older browsers */
  background: url('/images/steampunk-bg.jpg') no-repeat center center fixed;
  /* WebP for modern browsers (30% smaller) */
  background: url('/images/steampunk-bg.webp') no-repeat center center fixed;
  background-size: cover;
  position: relative;
}

/* 75% transparent overlay on fixed background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: rgba(232, 220, 200, 0.75);
  z-index: -1;
  pointer-events: none;
}

/* Mobile: Use smaller image and disable fixed positioning (causes jank on iOS) */
@media (max-width: 768px) {
  body {
    background: url('/images/steampunk-bg-mobile.webp') no-repeat center center;
    background-size: cover;
    background-attachment: scroll;
  }

  body::before {
    position: absolute;
    min-height: 100%;
  }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
  margin-top: 0;
  letter-spacing: 0.05em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}

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

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

p {
  margin-bottom: var(--space-md);
}

/* Links */
a {
  color: var(--color-link);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

a:focus-visible {
  outline: 2px solid var(--color-brass);
  outline-offset: 3px;
  border-radius: 2px;
  box-shadow: 0 0 0 4px rgba(205, 127, 50, 0.2);
}

/* Animated underline for content links */
.docs-content a:not(.btn),
.blog-content a:not(.btn) {
  background: linear-gradient(to right, var(--color-brass), var(--color-copper));
  background-size: 0% 2px;
  background-repeat: no-repeat;
  background-position: left bottom;
  transition: background-size var(--duration-normal) var(--ease-out-expo);
  text-decoration: none;
}

.docs-content a:not(.btn):hover,
.blog-content a:not(.btn):hover {
  background-size: 100% 2px;
  text-decoration: none;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
}

/* Site Header - Industrial Metal Bar */
.site-header {
  background: linear-gradient(180deg, #5D4037 0%, #3E2723 100%);
  border-bottom: 4px solid var(--color-brass);
  padding: var(--space-md) var(--space-lg);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--color-brass) 10%,
    var(--color-copper) 50%,
    var(--color-brass) 90%,
    transparent 100%);
}

.site-header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-header .logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  text-decoration: none;
  color: var(--color-surface);
  letter-spacing: 0.1em;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  position: relative;
}

.site-header .logo::before,
.site-header .logo::after {
  content: '—';
  color: var(--color-brass);
  margin: 0 0.5rem;
}

.site-header .logo:hover {
  color: var(--color-brass);
  text-decoration: none;
  text-shadow:
    2px 2px 4px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(205, 127, 50, 0.4);
}

.site-header .nav-links {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.site-header .nav-links a {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-surface);
  text-decoration: none;
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--duration-normal) var(--ease-in-out-smooth);
}

.site-header .nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-brass), var(--color-copper));
  transition: width var(--duration-normal) var(--ease-out-expo), left var(--duration-normal) var(--ease-out-expo);
}

.site-header .nav-links a:hover {
  color: var(--color-brass);
  text-decoration: none;
}

.site-header .nav-links a:hover::after {
  width: 100%;
  left: 0;
}

/* Site Footer - Industrial Base */
.site-footer {
  background: linear-gradient(0deg, #2C1810 0%, #3E2723 100%);
  border-top: 4px solid var(--color-brass);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  color: var(--color-text-light);
  margin-top: var(--space-xl);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--color-brass) 10%,
    var(--color-copper) 50%,
    var(--color-brass) 90%,
    transparent 100%);
}

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

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

/* Main content */
main {
  min-height: calc(100vh - 200px);
}

/* Industrial Metal Plate Button Base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 1.75rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition:
    transform var(--duration-fast) var(--ease-out-expo),
    box-shadow var(--duration-normal) var(--ease-out-expo),
    background var(--duration-normal) var(--ease-in-out-smooth),
    border-color var(--duration-normal) var(--ease-in-out-smooth);
  position: relative;
  text-transform: uppercase;
}

.btn:focus-visible {
  outline: 3px solid var(--color-brass);
  outline-offset: 3px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2),
    0 0 0 5px rgba(205, 127, 50, 0.2);
}

.btn:active {
  transform: scale(0.98) translateY(1px);
}

/* Primary Button - Brass Metal Plate */
.btn-primary {
  background: linear-gradient(180deg, #D4A574 0%, #B8860B 50%, #8B6914 100%);
  color: var(--color-text);
  border: 2px solid #8B6914;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2),
    0 2px 4px rgba(0, 0, 0, 0.3);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(180deg, #E8C49A 0%, #CD9B1D 50%, #A67C00 100%);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2),
    0 6px 16px rgba(0, 0, 0, 0.35),
    0 0 20px rgba(205, 127, 50, 0.3);
}

.btn-primary:active {
  transform: scale(0.98) translateY(1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    inset 0 -2px 4px rgba(0, 0, 0, 0.3),
    0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Secondary Button - Steel Metal Plate */
.btn-secondary {
  background: linear-gradient(180deg, #E8DCC8 0%, #D4C4A8 50%, #BEB09A 100%);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -2px 4px rgba(0, 0, 0, 0.1),
    0 2px 4px rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
  border-color: var(--color-brass);
  background: linear-gradient(180deg, #F5E6D3 0%, #E8DCC8 50%, #D4C4A8 100%);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.6),
    inset 0 -2px 4px rgba(0, 0, 0, 0.1),
    0 6px 16px rgba(0, 0, 0, 0.2);
}

.btn-secondary:active {
  transform: scale(0.98) translateY(1px);
  box-shadow:
    inset 0 2px 4px rgba(0, 0, 0, 0.15),
    0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Discord Button */
.btn-discord {
  background: linear-gradient(180deg, #7289DA 0%, #5865F2 50%, #4752C4 100%);
  color: white;
  border: 2px solid #4752C4;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2),
    0 2px 4px rgba(0, 0, 0, 0.3);
}

.btn-discord:hover {
  background: linear-gradient(180deg, #8B9FE8 0%, #6B7AFF 50%, #5865F2 100%);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -2px 4px rgba(0, 0, 0, 0.2),
    0 6px 16px rgba(88, 101, 242, 0.5);
}

.btn-discord:active {
  transform: scale(0.98) translateY(1px);
  box-shadow:
    inset 0 2px 4px rgba(0, 0, 0, 0.25),
    0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Large button variant */
.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* Industrial Divider */
.industrial-divider {
  height: 8px;
  background: linear-gradient(180deg, #5D4037 0%, #3E2723 100%);
  border-top: 2px solid var(--color-brass);
  border-bottom: 2px solid var(--color-bronze);
  margin: var(--space-lg) 0;
  position: relative;
}

.industrial-divider::before,
.industrial-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: var(--color-brass);
  border-radius: 50%;
  border: 2px solid var(--color-bronze);
}

.industrial-divider::before {
  left: 10%;
}

.industrial-divider::after {
  right: 10%;
}

/* Section Header Banner */
.section-banner {
  display: inline-block;
  background: linear-gradient(180deg, #5D4037 0%, #3E2723 100%);
  color: var(--color-surface);
  padding: 0.5rem 2rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.1em;
  border: 2px solid var(--color-brass);
  border-radius: var(--border-radius);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 4px 8px rgba(0, 0, 0, 0.3);
  margin-bottom: var(--space-lg);
}

/* Docs content prose styling */
.docs-content h1 {
  font-size: 2.25rem;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 3px solid var(--color-brass);
}

.docs-content h2 {
  font-size: 1.625rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.docs-content h3 {
  font-size: 1.25rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.docs-content p {
  margin-bottom: var(--space-md);
}

.docs-content pre {
  background: var(--color-code-bg);
  padding: var(--space-md);
  border-radius: var(--border-radius);
  overflow-x: auto;
  border: 2px solid var(--color-border);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.docs-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.docs-content :not(pre) > code {
  background: var(--color-code-bg);
  padding: 0.2em 0.4em;
  border-radius: 3px;
  border: 1px solid var(--color-border);
}

.docs-content ul, .docs-content ol {
  margin-bottom: var(--space-md);
  padding-left: 1.5rem;
}

.docs-content li {
  margin-bottom: var(--space-xs);
}

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-md);
}

.docs-content th, .docs-content td {
  border: 1px solid var(--color-border);
  padding: var(--space-sm) var(--space-md);
  text-align: left;
}

.docs-content th {
  background: var(--color-bg-alt);
  font-family: var(--font-display);
  font-weight: 600;
}

.docs-content blockquote {
  margin: var(--space-md) 0;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  border-left: 4px solid var(--color-brass);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

/* Card styles - Industrial Frame */
.card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  transition:
    box-shadow var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal) var(--ease-in-out-smooth);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 2px 8px rgba(0, 0, 0, 0.15);
}

.card:hover {
  border-color: var(--color-brass);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 8px 24px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(205, 127, 50, 0.1);
  transform: translateY(-4px);
}

.card h3 {
  margin-bottom: var(--space-sm);
  transition: color var(--duration-fast) var(--ease-in-out-smooth);
}

.card:hover h3 {
  color: var(--color-accent);
}

.card p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* Grid utilities */
.grid {
  display: grid;
  gap: var(--space-lg);
}

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

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

/* Section utilities */
.section {
  padding: var(--space-xl) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-alt {
  background: var(--color-bg-alt);
}

/* Responsive */
@media (max-width: 768px) {
  .site-header {
    padding: var(--space-md);
  }

  .site-header nav {
    flex-direction: column;
    gap: var(--space-md);
  }

  .site-header .nav-links {
    gap: var(--space-md);
  }

  .site-header .logo::before,
  .site-header .logo::after {
    display: none;
  }

  .section {
    padding: var(--space-lg) var(--space-md);
  }
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-brass);
  color: var(--color-text);
  padding: var(--space-sm) var(--space-md);
  z-index: 1000;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* Visually hidden utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Gear decoration utility */
.gear-decoration {
  position: relative;
}

.gear-decoration::before {
  content: '⚙';
  position: absolute;
  font-size: 3rem;
  color: var(--color-brass);
  opacity: 0.3;
}