/* ===========================
   VARIABLES & RESET
   =========================== */
:root {
  /* Colors */
  --primary: #10b981;
  --primary-dark: #059669;
  --primary-light: #d1fae5;
  --secondary: #6366f1;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --code-bg: #1e293b;
  --code-text: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* Layout */
  --header-height: 70px;
  --sidebar-width: 280px;
  --content-max-width: 900px;
  --border-radius: 12px;
  --border-radius-sm: 8px;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-secondary);
  font-size: 16px;
}

/* ===========================
   HEADER
   =========================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  color: var(--text-primary);
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.logo-icon svg {
  width: 20px;
  height: 20px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.desktop-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
  position: relative;
}

.desktop-nav a:hover {
  color: var(--primary);
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s;
}

.desktop-nav a:hover::after {
  width: 100%;
}

.github-link svg {
  width: 20px;
  height: 20px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-primary);
}

/* ===========================
   MOBILE MENU
   =========================== */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--bg-primary);
  box-shadow: var(--shadow-lg);
  z-index: 1001;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 24px;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.close-menu-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-primary);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav-item {
  padding: 16px;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  font-weight: 500;
}

.mobile-nav-item:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* ===========================
   MAIN CONTAINER
   =========================== */
.main-container {
  display: flex;
  margin-top: var(--header-height);
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

/* ===========================
   SIDEBAR
   =========================== */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--bg-primary);
  border-right: 1px solid var(--border);
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  padding: 32px 0;
}

.sidebar-nav {
  padding: 0 24px;
}

.nav-section {
  margin-bottom: 32px;
}

.nav-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  margin-bottom: 12px;
  padding: 0 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  margin-bottom: 4px;
}

.nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.nav-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--primary-light);
  color: var(--primary);
}

/* ===========================
   CONTENT AREA
   =========================== */
.content {
  flex: 1;
  padding: 48px 48px 80px;
  background: var(--bg-primary);
  min-width: 0;
}

/* ===========================
   HERO SECTION
   =========================== */
.hero-section {
  max-width: 800px;
  margin-bottom: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, var(--primary-light) 0%, #e0e7ff 100%);
  color: var(--primary);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero-title {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(
    135deg,
    var(--text-primary) 0%,
    var(--text-secondary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn svg {
  width: 18px;
  height: 18px;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background: var(--bg-tertiary);
}

/* ===========================
   QUICK START CARD
   =========================== */
.quick-start-card {
  background: var(--code-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-header h3 {
  color: var(--code-text);
  font-size: 16px;
  font-weight: 600;
}

.copy-btn,
.copy-btn-small {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--code-text);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.copy-btn svg,
.copy-btn-small svg {
  width: 16px;
  height: 16px;
}

.copy-btn:hover,
.copy-btn-small:hover {
  background: rgba(255, 255, 255, 0.2);
}

.quick-start-card pre {
  padding: 24px;
  margin: 0;
}

.quick-start-card code {
  color: var(--code-text);
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 14px;
  line-height: 1.8;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

/* ===========================
   SECTIONS
   =========================== */
.section {
  max-width: var(--content-max-width);
  margin-bottom: 80px;
}

.section-header {
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-header p {
  font-size: 18px;
  color: var(--text-secondary);
}

/* ===========================
   FEATURE CARDS
   =========================== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.feature-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 32px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

/* ===========================
   CODE BLOCKS
   =========================== */
.code-block {
  position: relative;
  background: var(--code-bg);
  border-radius: var(--border-radius-sm);
  margin: 20px 0;
  overflow: hidden;
}

.code-block .copy-btn-small {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 10;
}

.code-block pre {
  padding: 24px;
  margin: 0;
  overflow-x: auto;
}

.code-block code {
  color: var(--code-text);
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 14px;
  line-height: 1.6;
}

/* Syntax Highlighting */
.token-comment {
  color: #64748b;
}
.token-command {
  color: #10b981;
  font-weight: 600;
}
.token-keyword {
  color: #8b5cf6;
}
.token-string {
  color: #f59e0b;
}
.token-var {
  color: #06b6d4;
}
.token-attr {
  color: #ec4899;
}
.token-tag {
  color: #3b82f6;
}

/* ===========================
   COMMAND SECTIONS
   =========================== */
.command-section {
  margin-bottom: 64px;
}

.command-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.command-badge {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  font-family: "Monaco", monospace;
}

.command-section h3 {
  font-size: 28px;
  font-weight: 700;
}

.command-section > p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 16px;
}

/* ===========================
   TABLES
   =========================== */
.options-table {
  margin: 32px 0;
}

.options-table h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  background: var(--bg-primary);
}

thead {
  background: var(--bg-tertiary);
}

th,
td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
}

td {
  font-size: 14px;
  color: var(--text-secondary);
}

td code {
  background: var(--primary-light);
  color: var(--primary);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 13px;
  font-family: "Monaco", monospace;
}

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

/* ===========================
   EXAMPLE BOX
   =========================== */
.example-box {
  background: linear-gradient(135deg, #f0fdf4 0%, #dbeafe 100%);
  border-radius: var(--border-radius-sm);
  padding: 4px;
  margin: 24px 0;
}

.example-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
}

.example-label {
  color: var(--primary);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.example-box pre {
  background: var(--code-bg);
  margin: 0;
  border-radius: 0 0 8px 8px;
  padding: 20px;
}

/* ===========================
   INTEGRATION CARD
   =========================== */
.integration-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 40px;
  margin-bottom: 32px;
}

.integration-card h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.integration-card > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ===========================
   DEMO BOX
   =========================== */
.demo-box {
  background: var(--bg-secondary);
  border: 2px dashed var(--border);
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-top: 32px;
}

.demo-header {
  background: white;
  padding: 12px 20px;
  border-bottom: 2px dashed var(--border);
}

.demo-header span {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.demo-content {
  padding: 32px;
}

.demo-text {
  font-size: 24px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.demo-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.demo-btn {
  padding: 10px 20px;
  background: white;
  border: 2px solid var(--border);
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-primary);
}

.demo-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ===========================
   WORKFLOW CARD
   =========================== */
.workflow-card {
  background: linear-gradient(135deg, #f0fdf4 0%, #fff7ed 100%);
  border-radius: var(--border-radius);
  padding: 32px;
  margin-bottom: 48px;
}

.workflow-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.workflow-header svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.workflow-header h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.workflow-header p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ===========================
   FEATURE GRID
   =========================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.feature-item {
  text-align: center;
  padding: 24px;
}

.feature-item svg {
  width: 40px;
  height: 40px;
  color: var(--primary);
  margin-bottom: 16px;
}

.feature-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-item p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  margin-top: 80px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-left {
  max-width: 300px;
}

.footer-left p {
  color: var(--text-secondary);
  margin-top: 12px;
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-column h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 12px;
  transition: var(--transition);
}

.footer-column a:hover {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ===========================
   BACK TO TOP
   =========================== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */
@media (max-width: 1024px) {
  .sidebar {
    width: 240px;
  }

  .content {
    padding: 32px 32px 80px;
  }
}

@media (max-width: 900px) {
  .desktop-nav {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .sidebar {
    position: fixed;
    left: -100%;
    top: var(--header-height);
    width: 280px;
    height: calc(100vh - var(--header-height));
    z-index: 999;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-lg);
  }

  .sidebar.active {
    left: 0;
  }

  .content {
    padding: 24px 24px 80px;
  }

  .hero-title {
    font-size: 40px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .section-header h2 {
    font-size: 32px;
  }

  .footer-content {
    flex-direction: column;
    gap: 32px;
  }

  .footer-links {
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 32px;
  }

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

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

  .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .command-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    flex-direction: column;
  }

  .code-block pre {
    font-size: 12px;
    padding: 16px;
  }

  table {
    font-size: 12px;
  }

  th,
  td {
    padding: 12px 8px;
  }
}