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

:root {
  --primary: #e8751a;
  --primary-dark: #c4600f;
  --secondary: #f59e0b;
  --accent: #fff3e0;
  --bg: #fffbf5;
  --text: #2d2d2d;
  --text-light: #5a5a5a;
  --code-bg: #fde9d0;
  --border: #f0d5b8;
  --white: #ffffff;
  --shadow: 0 2px 12px rgba(232, 117, 26, 0.1);
  --shadow-lg: 0 8px 30px rgba(232, 117, 26, 0.15);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* ===== Header & Nav ===== */
header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.logo span {
  color: var(--secondary);
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 8px 18px;
  border-radius: 8px;
  color: var(--text-light);
  font-weight: 500;
  transition: all 0.2s;
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  border-radius: 2px;
  transition: 0.3s;
}

/* ===== Main Content ===== */
main {
  flex: 1;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Hero Section ===== */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero h1 .highlight {
  color: var(--primary);
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 32px;
}

.hero .badge {
  display: inline-block;
  background: var(--accent);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

/* ===== Buttons ===== */
.btn-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s;
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
}

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

/* ===== Code Blocks ===== */
.code-block {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.9rem;
  overflow-x: auto;
  margin: 24px 0;
  line-height: 1.8;
}

.code-block .comment {
  color: var(--text-light);
}

.code-block .keyword {
  color: var(--primary);
  font-weight: 600;
}

.code-block .string {
  color: var(--secondary);
}

.code-block .number {
  color: #8b5cf6;
}

.code-block .function {
  color: #059669;
}

.code-block .output {
  color: var(--text-light);
  font-style: italic;
}

/* ===== Feature Cards ===== */
.features {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 40px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  transition: all 0.2s;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.feature-card .icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ===== Pipeline ===== */
.pipeline-section {
  padding: 60px 0;
}

.pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 32px 0;
}

.pipeline-step {
  background: var(--accent);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 22px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--primary);
}

.pipeline-arrow {
  color: var(--secondary);
  font-size: 1.3rem;
}

/* ===== Docs Page ===== */
.docs-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  padding: 40px 0 80px;
}

.docs-sidebar {
  position: sticky;
  top: 84px;
  height: fit-content;
}

.docs-sidebar h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-light);
  margin-bottom: 12px;
  padding-left: 12px;
}

.search-box {
  position: relative;
  margin-bottom: 16px;
}

.search-box input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--white);
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

.search-box input:focus {
  border-color: var(--primary);
}

.search-box input::placeholder {
  color: var(--text-light);
  opacity: 0.7;
}

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 4px;
  max-height: 300px;
  overflow-y: auto;
  z-index: 50;
  box-shadow: var(--shadow-lg);
  display: none;
}

.search-results.active {
  display: block;
}

.search-results a {
  display: block;
  padding: 10px 14px;
  color: var(--text);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.search-results a:last-child {
  border-bottom: none;
}

.search-results a:hover {
  background: var(--accent);
  color: var(--primary);
}

.search-results .search-highlight {
  background: var(--code-bg);
  padding: 1px 3px;
  border-radius: 3px;
}

.search-results .search-section {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 2px;
}

.docs-sidebar ul {
  list-style: none;
}

.docs-sidebar li {
  margin-bottom: 2px;
}

.docs-sidebar a {
  display: block;
  padding: 6px 12px;
  border-radius: 8px;
  color: var(--text-light);
  font-size: 0.9rem;
  transition: all 0.2s;
}

.docs-sidebar a:hover,
.docs-sidebar a.active {
  background: var(--accent);
  color: var(--primary);
}

.docs-content h2 {
  font-size: 1.75rem;
  margin: 40px 0 16px;
  padding-top: 16px;
}

.docs-content h2:first-child {
  margin-top: 0;
}

.docs-content h3 {
  font-size: 1.25rem;
  margin: 28px 0 12px;
}

.docs-content p {
  margin-bottom: 16px;
  color: var(--text-light);
}

.docs-content ul,
.docs-content ol {
  margin-bottom: 16px;
  padding-left: 24px;
  color: var(--text-light);
}

.docs-content li {
  margin-bottom: 6px;
}

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.9rem;
}

.docs-content th,
.docs-content td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  text-align: left;
}

.docs-content th {
  background: var(--accent);
  font-weight: 600;
  color: var(--text);
}

.docs-content code {
  background: var(--code-bg);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.85em;
}

.docs-content .note {
  background: var(--accent);
  border-left: 4px solid var(--primary);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 20px 0;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 24px;
  color: var(--text-light);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero .tagline {
    font-size: 1.05rem;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-sidebar {
    position: static;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
    margin-bottom: 16px;
  }

  .search-box input {
    font-size: 0.85rem;
  }

  .pipeline {
    flex-direction: column;
  }

  .pipeline-arrow {
    transform: rotate(90deg);
  }
}