/* ==================== CSS VARIABLES ==================== */
:root {
  --color-primary: #1A73E8;
  --color-primary-dark: #1557B0;
  --color-secondary: #FF6D00;
  --color-secondary-dark: #E65100;
  --color-bg: #F8F9FA;
  --color-card: #FFFFFF;
  --color-text: #212121;
  --color-text-soft: #5F6368;
  --color-border: #E0E0E0;
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-shadow-hover: rgba(0, 0, 0, 0.15);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --shadow-sm: 0 2px 8px var(--color-shadow);
  --shadow-md: 0 4px 16px var(--color-shadow);
  --shadow-lg: 0 8px 32px var(--color-shadow);
  --shadow-hover: 0 12px 40px var(--color-shadow-hover);
}

/* ==================== DARK MODE ==================== */
[data-theme="dark"] {
  --color-bg: #121212;
  --color-card: #1E1E1E;
  --color-text: #FFFFFF;
  --color-text-soft: #B0B0B0;
  --color-border: #333333;
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-shadow-hover: rgba(0, 0, 0, 0.5);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { max-width: 100%; display: block; }

/* ==================== HEADER ==================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-card);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  width: 36px;
  height: 36px;
}

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

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

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
}

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

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

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

.btn-primary:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 109, 0, 0.3);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.theme-toggle:hover { background-color: var(--color-border); }

/* ==================== HERO ==================== */
.hero {
  color: white;
  padding: var(--spacing-2xl) var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.hero-decoration {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.floating-icon {
  position: absolute;
  opacity: 0.12;
  animation: float 6s ease-in-out infinite;
  font-size: 3rem;
}

.floating-icon:nth-child(1) { top: 10%; left: 5%; animation-delay: 0s; }
.floating-icon:nth-child(2) { top: 20%; right: 10%; animation-delay: 1s; }
.floating-icon:nth-child(3) { bottom: 20%; left: 8%; animation-delay: 2s; }
.floating-icon:nth-child(4) { bottom: 30%; right: 5%; animation-delay: 3s; }

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-container {
  max-width: 960px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ==================== BREADCRUMB ==================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { opacity: 0.5; }

/* ==================== SKILL HERO HEADER ==================== */
.skill-hero-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

.skill-hero-icon {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  flex-shrink: 0;
  border: 3px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
}

.skill-hero-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.skill-hero-info {
  flex: 1;
  min-width: 250px;
}

.skill-category-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: rgba(255, 255, 255, 0.2);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-md);
}

.hero-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.05rem;
  opacity: 0.9;
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.skill-meta {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

.skill-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  opacity: 0.85;
}

/* ==================== DOWNLOAD BUTTON ==================== */
.hero-download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  background: linear-gradient(135deg, #FF6D00, #FF8F00);
  color: white;
  padding: 1.1rem var(--spacing-2xl);
  border-radius: var(--radius-lg);
  font-weight: 700;
  font-size: 1.15rem;
  box-shadow: 0 8px 32px rgba(255, 109, 0, 0.45);
  transition: all 0.25s ease;
  text-decoration: none;
  border: 2px solid rgba(255, 255, 255, 0.25);
  letter-spacing: 0.3px;
}

.hero-download-btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 40px rgba(255, 109, 0, 0.6);
}

.hero-download-btn:active { transform: translateY(0) scale(0.99); }

.btn-arrow {
  font-size: 1.3rem;
  transition: transform 0.2s;
}

.hero-download-btn:hover .btn-arrow { transform: translateX(4px); }

.download-note {
  font-size: 0.8rem;
  opacity: 0.75;
  margin-top: var(--spacing-sm);
  text-align: left;
}

/* ==================== CONTENT LAYOUT ==================== */
.content-wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-xl);
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--spacing-2xl);
}

.main-content { min-width: 0; }

.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* ==================== SECTION CARDS ==================== */
.section-card {
  background-color: var(--color-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
  transition: background-color var(--transition-normal);
}

.section-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--spacing-md);
}

.intro-text {
  font-size: 1rem;
  color: var(--color-text-soft);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.intro-text strong { color: var(--color-text); }

/* ==================== USE CASES GRID ==================== */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.use-case-item {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.use-case-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.use-case-icon { font-size: 1.8rem; margin-bottom: var(--spacing-sm); }
.use-case-title { font-weight: 600; font-size: 0.95rem; margin-bottom: var(--spacing-xs); }
.use-case-desc { font-size: 0.85rem; color: var(--color-text-soft); line-height: 1.5; }

/* ==================== INSTALLATION STEPS ==================== */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.step-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 2px;
  /* background set inline per skill */
}

.step-content { flex: 1; }
.step-title { font-weight: 600; margin-bottom: var(--spacing-xs); }
.step-desc { font-size: 0.9rem; color: var(--color-text-soft); line-height: 1.5; }

.step-code {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  margin-top: var(--spacing-sm);
  color: var(--color-primary);
  word-break: break-all;
  white-space: pre-wrap;
}

/* ==================== EXAMPLES ==================== */
.examples-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.example-item {
  background: rgba(26, 115, 232, 0.05);
  border: 1px solid rgba(26, 115, 232, 0.15);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  transition: all var(--transition-fast);
}

.example-item:hover {
  border-color: rgba(26, 115, 232, 0.35);
  box-shadow: var(--shadow-sm);
}

.example-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-xs);
}

.example-prompt { font-size: 0.95rem; color: var(--color-text); line-height: 1.5; }

/* ==================== FEATURES LIST ==================== */
.features-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.feature-item:last-child { border-bottom: none; }
.feature-check { color: #2E7D32; font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.feature-text strong { color: var(--color-text); display: block; margin-bottom: 2px; font-size: 0.95rem; }
.feature-text span { color: var(--color-text-soft); font-size: 0.875rem; }

/* ==================== FAQ ==================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: var(--spacing-md) var(--spacing-lg);
  font-weight: 600;
  font-size: 0.95rem;
  background: var(--color-card);
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.faq-question:hover { background: var(--color-bg); }

.faq-arrow {
  transition: transform var(--transition-fast);
  color: var(--color-primary);
}

.faq-item.open .faq-arrow { transform: rotate(180deg); }

.faq-answer {
  padding: 0 var(--spacing-lg);
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-normal);
  font-size: 0.9rem;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  padding: var(--spacing-md) var(--spacing-lg);
  max-height: 300px;
}

/* ==================== SIDEBAR ==================== */
.sidebar-card {
  background-color: var(--color-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal);
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.sidebar-download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: linear-gradient(135deg, #FF6D00, #FF8F00);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 16px rgba(255, 109, 0, 0.35);
  transition: all var(--transition-fast);
  text-decoration: none;
  margin-bottom: var(--spacing-sm);
}

.sidebar-download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 109, 0, 0.5);
}

.skill-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.skill-info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--color-border);
}

.skill-info-item:last-child { border-bottom: none; }
.skill-info-label { color: var(--color-text-soft); }
.skill-info-value { font-weight: 600; color: var(--color-text); font-size: 0.85rem; }

.badge-free { background: #E8F5E9; color: #2E7D32; padding: 2px 8px; border-radius: var(--radius-full); font-size: 0.8rem; font-weight: 600; }
.badge-official { background: #E3F2FD; color: #1A73E8; padding: 2px 8px; border-radius: var(--radius-full); font-size: 0.8rem; font-weight: 600; }
.badge-community { background: #FFF3E0; color: #E65100; padding: 2px 8px; border-radius: var(--radius-full); font-size: 0.8rem; font-weight: 600; }

.rating-display {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.stars { color: #FFA000; font-size: 1.1rem; }
.rating-number { font-size: 1.5rem; font-weight: 700; }

/* ==================== FOOTER ==================== */
.footer {
  background-color: #1e1e1e;
  border-top: 1px #333333;
  padding: var(--spacing-2xl) var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.footer .logo-text{
  color: #FFFFFF;
}
.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
}

.footer-brand p {
  font-size: 0.875rem;
  color: #FFFFFF;
  margin-top: var(--spacing-sm);
  line-height: 1.6;
}

.footer-title { font-weight: 700; font-size: 1rem; color: #FFFFFF; margin-bottom: var(--spacing-md); }

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  font-size: 0.875rem;
  color: #FFFFFF;
  transition: color var(--transition-fast);
}

.footer li { line-height: 1; }

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

.footer-bottom {
  max-width: 1400px;
  margin: var(--spacing-xl) auto 0;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-bottom p { font-size: 0.875rem; color: #FFFFFF; }



/* ==================== RESPONSIVE ==================== */
@media (max-width: 900px) {
  .content-wrapper { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .skill-hero-header { flex-direction: column; align-items: center; text-align: center; }
  .skill-meta { justify-content: center; }
  .hero-download-btn { width: 100%; }
  .download-note { text-align: center; }
}

@media (max-width: 768px) {
  .content-wrapper { padding: var(--spacing-lg) var(--spacing-md); }
  .hero { padding: var(--spacing-xl) var(--spacing-md); }
}