/* ============================================
   AnimetalPoster Drop Shipping API Platform
   Design System - Dark Theme
   ============================================ */

/* --- Google Fonts --- */
/* Google Fonts loaded via HTML <link> for better performance */

/* --- CSS Variables --- */
:root {
  /* Brand Colors */
  --color-bg-primary: #01041a;
  --color-bg-secondary: #0a0e2a;
  --color-bg-tertiary: #111538;
  --color-bg-card: rgba(17, 21, 56, 0.6);
  --color-bg-glass: rgba(17, 21, 56, 0.4);
  
  /* Accent Colors */
  --color-accent: #9eea32;
  --color-accent-hover: #b2ff4d;
  --color-accent-dim: rgba(158, 234, 50, 0.15);
  --color-accent-glow: rgba(158, 234, 50, 0.3);
  --color-purple: #8998fb;
  --color-purple-dim: rgba(137, 152, 251, 0.15);
  --color-gold: #c69c6d;
  --color-red: #ee1d21;
  --color-cyan: #12aaeb;
  
  /* Text Colors */
  --color-text-primary: #d0d4ff;
  --color-text-secondary: rgba(208, 212, 255, 0.7);
  --color-text-muted: rgba(208, 212, 255, 0.45);
  --color-text-inverse: #01041a;
  
  /* Border */
  --color-border: rgba(137, 152, 251, 0.15);
  --color-border-hover: rgba(137, 152, 251, 0.3);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(158, 234, 50, 0.15);
  --shadow-purple-glow: 0 0 30px rgba(137, 152, 251, 0.15);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --max-width: 1280px;
  --header-height: 72px;
}

/* --- Light Theme Variables --- */
[data-theme="light"] {
  /* Brand Colors */
  --color-bg-primary: #f4f6fc;
  --color-bg-secondary: #ffffff;
  --color-bg-tertiary: #e9ecf5;
  --color-bg-card: rgba(255, 255, 255, 0.85);
  --color-bg-glass: rgba(255, 255, 255, 0.6);
  
  /* Accent Colors */
  --color-accent: #528c00;
  --color-accent-hover: #437300;
  --color-accent-dim: rgba(82, 140, 0, 0.1);
  --color-accent-glow: rgba(82, 140, 0, 0.2);
  --color-purple: #4f5dc7;
  --color-purple-dim: rgba(79, 93, 199, 0.1);
  --color-gold: #9e7547;
  --color-red: #d31619;
  --color-cyan: #0b7dae;
  
  /* Text Colors */
  --color-text-primary: #0a0f2e;
  --color-text-secondary: #4a547a;
  --color-text-muted: #808ba8;
  --color-text-inverse: #ffffff;
  
  /* Border */
  --color-border: rgba(79, 93, 199, 0.12);
  --color-border-hover: rgba(79, 93, 199, 0.24);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(10, 15, 46, 0.05);
  --shadow-md: 0 4px 24px rgba(10, 15, 46, 0.08);
  --shadow-lg: 0 8px 48px rgba(10, 15, 46, 0.12);
  --shadow-glow: 0 0 30px rgba(82, 140, 0, 0.15);
  --shadow-purple-glow: 0 0 30px rgba(79, 93, 199, 0.12);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  font-size: 15px;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol { list-style: none; }

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--color-border);
  outline: none;
}

/* --- Background Effects --- */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(137, 152, 251, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 50%, rgba(158, 234, 50, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 20% 80%, rgba(18, 170, 235, 0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-4xl) 0;
  position: relative;
  z-index: 1;
}

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

.flex {
  display: flex;
  align-items: center;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.text-center { text-align: center; }
.text-left { text-align: left; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.3rem, 3vw, 1.6rem); letter-spacing: -0.01em; }
h4 { font-size: 1.15rem; }
h5 { font-size: 1rem; }

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent), var(--color-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent { color: var(--color-accent); }
.text-purple { color: var(--color-purple); }
.text-muted { color: var(--color-text-secondary); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }

.mono { font-family: var(--font-mono); }

.subtitle {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 640px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: var(--color-accent-dim);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

/* --- SVG Icon Utilities --- */
.icon {
  width: 1em;
  height: 1em;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: -0.15em;
  display: inline-block;
  flex-shrink: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  box-shadow: 0 4px 16px rgba(158, 234, 50, 0.25);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 6px 24px rgba(158, 234, 50, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-dim);
}

.btn-ghost {
  background: var(--color-bg-glass);
  color: var(--color-text-primary);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-border-hover);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* --- Cards --- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(16px);
  transition: all var(--transition-base);
}

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

.card-glow:hover {
  box-shadow: var(--shadow-glow);
  border-color: rgba(158, 234, 50, 0.2);
}

.card-purple:hover {
  box-shadow: var(--shadow-purple-glow);
  border-color: rgba(137, 152, 251, 0.25);
}

/* --- Catalog Image Placeholder --- */
.catalog-img-placeholder {
  height: 200px;
  background: linear-gradient(135deg, #1a1f4e, #0a0e2a);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--color-purple);
  transition: all var(--transition-base);
}
[data-theme="light"] .catalog-img-placeholder {
  background: linear-gradient(135deg, #e2e7f7, #cbd5f0);
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  transition: all var(--transition-base);
  background: rgba(1, 4, 26, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-accent), #78c8f3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: var(--color-bg-primary);
  font-size: 0.9rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav a:hover,
.nav a.active {
  color: var(--color-text-primary);
}

.nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-close { display: none; }

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--header-height);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(158, 234, 50, 0.08) 0%, transparent 70%);
  top: 10%;
  right: -10%;
  animation: float 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(137, 152, 251, 0.06) 0%, transparent 70%);
  bottom: 10%;
  left: -10%;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -30px); }
}

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

.hero h1 {
  margin-bottom: var(--space-lg);
}

.hero .subtitle {
  margin: 0 auto var(--space-xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  justify-content: center;
  margin-top: var(--space-3xl);
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* --- Feature Cards --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.4rem;
}

.feature-icon.purple {
  background: var(--color-purple-dim);
}

/* --- Code Block --- */
.code-block {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--color-border);
}

.code-dots {
  display: flex;
  gap: 6px;
}

.code-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-dots span:nth-child(1) { background: #ff5f57; }
.code-dots span:nth-child(2) { background: #ffbd2e; }
.code-dots span:nth-child(3) { background: #28c940; }

.code-lang {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.code-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  overflow-x: auto;
  color: var(--color-text-secondary);
}

.code-body .key { color: #78c8f3; }
.code-body .string { color: var(--color-accent); }
.code-body .number { color: #ffbd2e; }
.code-body .comment { color: var(--color-text-muted); font-style: italic; }
.code-body .method { color: #c792ea; }
.code-body .url { color: var(--color-gold); }

/* --- API Endpoint --- */
.endpoint {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.endpoint:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-tertiary);
}

.method-badge {
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  min-width: 56px;
  text-align: center;
}

.method-get { background: rgba(40, 201, 64, 0.15); color: #28c940; }
.method-post { background: rgba(255, 189, 46, 0.15); color: #ffbd2e; }
.method-put { background: rgba(18, 170, 235, 0.15); color: #12aaeb; }
.method-delete { background: rgba(238, 29, 33, 0.15); color: #ee1d21; }

.endpoint-path {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  flex: 1;
}

.endpoint-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- Status Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success { background: rgba(40, 201, 64, 0.12); color: #28c940; }
.badge-warning { background: rgba(255, 189, 46, 0.12); color: #ffbd2e; }
.badge-error { background: rgba(238, 29, 33, 0.12); color: #ee1d21; }
.badge-info { background: rgba(18, 170, 235, 0.12); color: #12aaeb; }
.badge-purple { background: var(--color-purple-dim); color: var(--color-purple); }

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* --- Table --- */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

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

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

th {
  background: var(--color-bg-secondary);
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

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

tr:hover td { background: rgba(137, 152, 251, 0.03); }

/* --- Forms --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

textarea.form-input {
  min-height: 120px;
  resize: vertical;
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238998fb' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-3xl) 0 var(--space-xl);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.footer-links li { margin-bottom: var(--space-sm); }

.footer-links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* --- Sidebar / Tab Navigation (for docs & dashboard) --- */
.page-layout {
  display: flex;
  min-height: calc(100vh - var(--header-height));
  padding-top: var(--header-height);
}

.sidebar {
  width: 280px;
  min-width: 280px;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
  padding: var(--space-xl) 0;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
}

.sidebar-section {
  margin-bottom: var(--space-lg);
  padding: 0 var(--space-lg);
}

.sidebar-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 16px;
  margin: 2px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.87rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.sidebar-link:hover {
  background: rgba(137, 152, 251, 0.06);
  color: var(--color-text-primary);
}

.sidebar-link.active {
  background: var(--color-accent-dim);
  color: var(--color-accent);
  font-weight: 600;
}

.main-content {
  flex: 1;
  padding: var(--space-2xl);
  max-width: calc(100% - 280px);
}

/* --- Tabs --- */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-xl);
}

.tab {
  padding: 12px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition-fast);
}

.tab:hover { color: var(--color-text-primary); }

.tab.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* --- Dashboard specific --- */
.stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(16px);
}

.stat-card-value {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat-card-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-16px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-in {
  animation: fadeInUp 0.6s ease-out both;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .sidebar { width: 240px; min-width: 240px; }
  .main-content { max-width: calc(100% - 240px); }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--space-md); }
  .section { padding: var(--space-3xl) 0; }
  
  .nav {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(1, 4, 26, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    z-index: 9998;
  }
  .nav.show {
    display: flex;
    animation: fadeIn 0.25s ease;
  }
  .nav.show a {
    font-size: 1.3rem;
    padding: var(--space-sm) var(--space-lg);
  }
  .nav.show a.active::after { bottom: -2px; }
  .nav-close {
    position: absolute;
    top: 24px; right: 24px;
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-size: 1.4rem;
    cursor: pointer;
    z-index: 9999;
  }
  .mobile-menu-btn { display: flex; }
  
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  
  .hero-stats { gap: var(--space-xl); }
  .hero-stat-value { font-size: 1.6rem; }
  
  .page-layout { flex-direction: column; }
  .sidebar { 
    width: 100%; 
    min-width: 100%; 
    height: auto; 
    position: relative; 
    top: 0;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .main-content { max-width: 100%; padding: var(--space-lg); }
  
  .endpoint { flex-direction: column; align-items: flex-start; }
  
  .hero-actions { flex-direction: column; align-items: center; }

  .backdrop-filter { backdrop-filter: none; }
}

@media (max-width: 480px) {
  .hero-stats { flex-direction: column; gap: var(--space-lg); }
}

/* --- Code Copy Button --- */
.code-block { position: relative; }
.code-copy-btn {
  position: absolute;
  top: 10px; right: 10px;
  padding: 5px 10px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-family: var(--font-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 4px;
}
.code-copy-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: var(--color-accent-dim);
}
.code-copy-btn.copied {
  color: #28c940;
  border-color: #28c940;
}

/* --- Back to Top Button --- */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

/* --- Theme Toggle --- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-tertiary);
  color: var(--color-accent);
}
.theme-toggle .icon {
  position: absolute;
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}
/* Show Sun icon in dark theme, hide Moon */
[data-theme="dark"] .theme-toggle .sun-icon {
  opacity: 1;
  transform: scale(1) rotate(0);
}
[data-theme="dark"] .theme-toggle .moon-icon {
  opacity: 0;
  transform: scale(0.5) rotate(45deg);
}
/* Show Moon icon in light theme, hide Sun */
[data-theme="light"] .theme-toggle .sun-icon {
  opacity: 0;
  transform: scale(0.5) rotate(-45deg);
}
[data-theme="light"] .theme-toggle .moon-icon {
  opacity: 1;
  transform: scale(1) rotate(0);
}

/* --- Light Theme Overrides & Adaptations --- */
[data-theme="light"] body::before {
  background: 
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(79, 93, 199, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 50%, rgba(82, 140, 0, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 20% 80%, rgba(11, 125, 174, 0.03) 0%, transparent 50%);
}
[data-theme="light"] .header {
  background: rgba(244, 246, 252, 0.85);
}
[data-theme="light"] select.form-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234f5dc7' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}
[data-theme="light"] .badge-success { background: rgba(30, 170, 50, 0.1); color: #1eaa32; }
[data-theme="light"] .badge-warning { background: rgba(217, 137, 0, 0.1); color: #d98900; }
[data-theme="light"] .badge-error { background: rgba(211, 22, 25, 0.1); color: #d31619; }
[data-theme="light"] .badge-info { background: rgba(11, 125, 174, 0.1); color: #0b7dae; }

[data-theme="light"] .method-get { background: rgba(30, 170, 50, 0.1); color: #1eaa32; }
[data-theme="light"] .method-post { background: rgba(217, 137, 0, 0.1); color: #d98900; }
[data-theme="light"] .method-put { background: rgba(11, 125, 174, 0.1); color: #0b7dae; }
[data-theme="light"] .method-delete { background: rgba(211, 22, 25, 0.1); color: #d31619; }

/* Keep code blocks dark in light mode */
[data-theme="light"] .code-block {
  background: #06091e;
  border-color: rgba(255,255,255,0.06);
}
[data-theme="light"] .code-block .code-header {
  background: rgba(0, 0, 0, 0.3);
  border-bottom-color: rgba(255,255,255,0.06);
}
[data-theme="light"] .code-block .code-body {
  color: #a0a6cc;
}
[data-theme="light"] .code-block .key { color: #78c8f3; }
[data-theme="light"] .code-block .string { color: #9eea32; }
[data-theme="light"] .code-block .number { color: #ffbd2e; }
[data-theme="light"] .code-block .comment { color: rgba(160, 166, 204, 0.5); }
[data-theme="light"] .code-block .method { color: #c792ea; }
[data-theme="light"] .code-block .url { color: #c69c6d; }
[data-theme="light"] .code-block .code-lang { color: rgba(160, 166, 204, 0.6); }
[data-theme="light"] .code-block .code-copy-btn {
  color: rgba(160, 166, 204, 0.6);
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}
[data-theme="light"] .code-block .code-copy-btn:hover {
  color: #9eea32;
  border-color: #9eea32;
  background: rgba(158, 234, 50, 0.05);
}

/* --- Language Switcher --- */
.lang-switcher {
  position: relative;
  z-index: 1000;
}
.lang-current {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.lang-current:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-tertiary);
}
.lang-label { margin: 0 2px; }
.lang-chevron { transition: transform var(--transition-fast); flex-shrink: 0; }
.lang-dropdown.show ~ .lang-current .lang-chevron,
.lang-current:focus + .lang-dropdown + .lang-chevron { transform: rotate(180deg); }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease;
}
.lang-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-option {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.lang-option:hover {
  background: var(--color-accent-dim);
  color: var(--color-text-primary);
}
.lang-option.active {
  background: var(--color-accent-dim);
  color: var(--color-accent);
  font-weight: 600;
}

@media (max-width: 768px) {
  .lang-switcher { order: -1; }
  .lang-label { display: none; }
  .lang-current { padding: 6px 8px; }
  .theme-toggle { order: -1; }
  [data-theme="light"] .nav {
    background: rgba(244, 246, 252, 0.98);
  }
}

/* --- Language Switcher --- */
.lang-switcher {
  position: relative;
  z-index: 50;
}
.lang-current {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-glass);
  color: var(--color-text-primary);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font-primary);
  transition: all var(--transition-base);
  white-space: nowrap;
}
.lang-current:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-secondary);
}
.lang-globe { flex-shrink: 0; }
.lang-chevron {
  flex-shrink: 0;
  transition: transform 0.2s ease;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}
.lang-dropdown.show ~ .lang-current .lang-chevron,
.lang-switcher:has(.lang-dropdown.show) .lang-chevron {
  transform: rotate(180deg);
}
.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 4px;
  z-index: 100;
}
.lang-dropdown.show { display: block; }
.lang-option {
  display: block;
  width: 100%;
  padding: 8px 12px;
  text-align: left;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: var(--font-primary);
  border-radius: var(--radius-xs, 4px);
  transition: all 0.15s;
}
.lang-option:hover {
  background: var(--color-accent-dim);
  color: var(--color-accent);
}
.lang-option.active {
  color: var(--color-accent);
  font-weight: 600;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(137, 152, 251, 0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(137, 152, 251, 0.35); }