/* ==========================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ========================================== */
:root {
  /* Colors - Warm Coral Palette */
  --color-1: #f0c0a3;
  --color-2: #ff9c7a;
  --color-3: #ff6e61;
  --color-4: #f47b1f;
  --color-5: #d9703f;

  /* Semantic Color Mapping */
  --color-primary: #ff6e61;
  --color-primary-dark: #f47b1f;
  --color-secondary: #d9703f;
  --color-accent: #f47b1f;
  --color-dark: #1a1a2e;
  --color-dark-alt: #16213e;
  --color-light: #f8f9fa;
  --color-text: #2d3436;
  --color-text-light: #636e72;
  --color-border: #dfe6e9;
  --color-success: #d9703f;

  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

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

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 2px 4px 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);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-light);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 1000;
  font-weight: 600;
}

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

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

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

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

code {
  font-family: var(--font-mono);
  background: var(--color-dark-alt);
  color: var(--color-2);
  padding: 0.2em 0.5em;
  border-radius: var(--radius-sm);
  font-size: 0.875em;
  font-weight: 500;
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */
.site-header {
  background: var(--color-dark);
  color: white;
  padding: var(--space-md) 0;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  font-family: var(--font-mono);
}

.logo:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav-menu a {
  color: white;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* ==========================================
   MAIN CONTENT
   ========================================== */
.main-content {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  text-align: center;
  padding: var(--space-xl) 0 var(--space-lg) 0;
  background: linear-gradient(135deg, #2c1810 0%, #1a0f0a 100%);
  color: white;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(244, 123, 31, 0.2);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 50px,
      rgba(244, 123, 31, 0.08) 50px,
      rgba(244, 123, 31, 0.08) 51px
    );
  pointer-events: none;
}

.hero-title-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.hero-year {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.5rem;
  color: var(--color-4);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  position: relative;
  text-shadow: 0 2px 10px rgba(244, 123, 31, 0.3);
}

.hero-year::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-4), transparent);
  box-shadow: 0 0 8px rgba(244, 123, 31, 0.5);
}

.hero-title {
  font-size: 2.5rem;
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff !important;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-1);
  margin: 0;
  font-style: italic;
  position: relative;
  z-index: 1;
  opacity: 0.95;
}

/* ==========================================
   GENERATOR CONTAINER
   ========================================== */
.generator-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

/* Controls Panel */
.controls-panel {
  background: white;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  height: fit-content;
  position: sticky;
  top: 100px;
}

.controls-panel h2 {
  color: var(--color-dark);
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
}

.control-group {
  margin-bottom: var(--space-lg);
}

.control-group label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  color: var(--color-text);
}

.label-value {
  background: var(--color-primary);
  color: white;
  padding: 0.2em 0.6em;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  min-width: 40px;
  text-align: center;
}

input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-sm);
  background: var(--color-border);
  outline: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: none;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 500;
  cursor: pointer;
}

input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.button-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.btn {
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  display: inline-block;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn-secondary {
  background: var(--color-secondary);
  color: white;
}

.btn-secondary:hover {
  background: var(--color-4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.info-box {
  background: rgba(240, 192, 163, 0.2);
  border-left: 4px solid var(--color-4);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-top: var(--space-lg);
}

.info-box p {
  margin-bottom: var(--space-xs);
  font-size: 0.9rem;
}

.info-box .small {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.inline-code-block {
  background: var(--color-dark);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-top: var(--space-xs);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
}

.inline-code-block:hover {
  box-shadow: 0 0 0 2px var(--color-3);
  transform: scale(1.02);
}

.inline-code-block code {
  color: var(--color-2);
  font-size: 0.9rem;
}

/* Output Panel */
.output-panel {
  background: white;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}

.output-header h2 {
  margin: 0;
  color: var(--color-dark);
}

.output-stats {
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

.output-box {
  background: var(--color-dark);
  color: #b2bec3;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  min-height: 400px;
  max-height: 600px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.8;
  white-space: pre-wrap;
  word-wrap: break-word;
  cursor: default;
  transition: all var(--transition-base);
  user-select: text;
}

.output-box:not(.placeholder-text):hover {
  box-shadow: 0 0 0 2px var(--color-primary);
  transform: scale(1.002);
}

.output-box.copied {
  animation: copyFlash 0.5s ease;
}

@keyframes copyFlash {
  0%, 100% { background: var(--color-dark); }
  50% { background: var(--color-success); }
}

.placeholder-text {
  color: var(--color-text-light);
  font-style: italic;
}

.output-hint {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-top: var(--space-sm);
  font-style: italic;
}

/* ==========================================
   FEATURES SECTION
   ========================================== */
.features-section {
  margin: var(--space-2xl) 0;
  text-align: center;
}

.features-section h2 {
  font-size: 2.5rem;
  margin-bottom: var(--space-xl);
  color: var(--color-dark);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  background: white;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}


.feature-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  font-size: 1.35rem;
}

.feature-card p {
  color: var(--color-text-light);
  margin: 0;
}

/* ==========================================
   API/PARAMS SECTION
   ========================================== */
.api-section {
  background: white;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin: var(--space-2xl) 0;
}

.api-section h2 {
  color: var(--color-dark);
  margin-bottom: var(--space-md);
}

.api-section h3 {
  color: var(--color-dark);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
  border-bottom: 2px solid var(--color-3);
  padding-bottom: var(--space-sm);
}

.api-section h4 {
  color: var(--color-text);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  font-size: 1.1rem;
  font-weight: 600;
}

.api-endpoint {
  background: var(--color-dark);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
  border-left: 4px solid var(--color-4);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
}

.api-endpoint:hover {
  box-shadow: 0 0 0 2px var(--color-4);
  transform: translateY(-2px);
}

.api-endpoint::after {
  content: 'Click to copy';
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-1);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
  font-family: var(--font-primary);
}

.api-endpoint:hover::after {
  opacity: 1;
}

.api-endpoint h3 {
  color: var(--color-4);
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
}

.endpoint-url {
  color: var(--color-2);
  font-size: 1rem;
  font-weight: 600;
  background: transparent;
  padding: 0;
  display: inline-block;
}

.code-block {
  margin: var(--space-md) 0 var(--space-lg) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
}

.code-block:hover {
  box-shadow: 0 0 0 2px var(--color-3);
  transform: translateY(-2px);
}

.code-block::after {
  content: 'Click to copy';
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-1);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
  font-family: var(--font-primary);
}

.code-block:hover::after {
  opacity: 1;
}

.code-block pre {
  background: var(--color-dark);
  color: #d4d4d4;
  padding: var(--space-lg);
  margin: 0;
  overflow-x: auto;
  border-left: 3px solid var(--color-3);
}

.code-block code {
  background: transparent;
  color: #d4d4d4;
  font-size: 0.9rem;
  line-height: 1.6;
  font-family: var(--font-mono);
  padding: 0;
}

.params-table {
  overflow-x: auto;
  margin-top: var(--space-lg);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--color-dark);
  color: white;
}

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

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

/* ==========================================
   AD CONTAINERS
   ========================================== */
.ad-container {
  max-width: 1200px;
  margin: var(--space-2xl) auto;
  padding: 0 var(--space-md);
  text-align: center;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================
   HISTORY TEASER
   ========================================== */
.history-teaser {
  background: linear-gradient(135deg, #1a0f0a 0%, #2c1810 100%);
  color: white;
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  margin: var(--space-2xl) 0;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-4);
}

.teaser-content h2 {
  font-size: 2rem;
  margin-bottom: var(--space-lg);
  color: white;
}

.teaser-excerpt {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
  color: #e8e8e8;
}

.teaser-hook {
  font-size: 1rem;
  font-style: italic;
  margin-bottom: var(--space-xl);
  color: var(--color-1);
}

/* ==========================================
   FOOTER
   ========================================== */
.site-footer {
  background: var(--color-dark);
  color: white;
  padding: var(--space-2xl) var(--space-md) var(--space-lg);
  margin-top: auto;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h3 {
  color: var(--color-3);
  margin-bottom: var(--space-md);
}

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

.footer-section ul li {
  margin-bottom: var(--space-xs);
}

.footer-section a {
  color: #b2bec3;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: var(--space-lg);
  border-top: 1px solid #2d3436;
  text-align: center;
  color: var(--color-text-light);
}

.homage {
  font-style: italic;
  color: var(--color-2);
  margin-top: var(--space-xs);
}

/* ==========================================
   ARTICLE STYLES (for history/about pages)
   ========================================== */
.article-meta {
  background: var(--color-light);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
  border-left: 4px solid var(--color-3);
}

.lead {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--color-text);
}

.main-content h1 {
  color: var(--color-dark);
  margin-bottom: var(--space-lg);
  font-size: 3rem;
}

.main-content h2 {
  color: var(--color-dark);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}

.main-content p {
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.main-content strong {
  color: var(--color-dark);
  font-weight: 700;
}

.cta-box {
  background: linear-gradient(135deg, var(--color-3) 0%, var(--color-4) 100%);
  color: white;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  margin-top: var(--space-2xl);
}

.cta-box h3 {
  color: white;
  margin-bottom: var(--space-sm);
}

.cta-box p {
  margin-bottom: var(--space-lg);
  font-size: 1.1rem;
}

.cta-box .btn {
  background: white;
  color: var(--color-4);
}

.cta-box .btn:hover {
  background: var(--color-1);
  color: var(--color-dark);
}

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

/* Tablet and smaller */
@media (max-width: 1024px) {
  .generator-container {
    gap: var(--space-lg);
  }

  .controls-panel {
    position: static;
  }
}

/* Mobile landscape and smaller tablets */
@media (max-width: 768px) {
  :root {
    --space-xl: 2.5rem;
    --space-2xl: 3rem;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-year {
    font-size: 1.1rem;
  }

  .hero-title-group {
    gap: var(--space-sm);
  }

  .generator-container {
    grid-template-columns: 1fr;
  }

  .controls-panel {
    position: static;
  }

  .nav-menu {
    gap: var(--space-md);
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

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

  .main-content h1 {
    font-size: 2rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  table {
    font-size: 0.9rem;
  }

  th, td {
    padding: var(--space-xs) var(--space-sm);
  }
}

/* Mobile portrait */
@media (max-width: 480px) {
  :root {
    --space-lg: 1.25rem;
    --space-xl: 2rem;
    --space-2xl: 2.5rem;
  }

  .hero {
    padding: var(--space-md) var(--space-sm);
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-year {
    font-size: 1rem;
  }

  .hero-title-group {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .nav-container {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .nav-menu {
    gap: var(--space-sm);
  }

  .output-box {
    font-size: 0.85rem;
    min-height: 300px;
    padding: var(--space-md);
  }

  .controls-panel {
    padding: var(--space-md);
  }

  .button-group {
    gap: var(--space-xs);
  }

  .btn {
    padding: var(--space-sm);
    font-size: 0.95rem;
  }

  /* Make tables scrollable on mobile */
  .params-table {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  table {
    min-width: 600px;
    font-size: 0.85rem;
  }

  .feature-card {
    padding: var(--space-lg);
  }
}

/* Extra small devices */
@media (max-width: 360px) {
  .hero-title {
    font-size: 1.25rem;
  }

  .hero-year {
    font-size: 0.9rem;
  }

  .output-box {
    min-height: 250px;
  }
}