/* ============================================================
   BUDO Academy — Premium Design System
   ============================================================ */

/* --- Design Tokens --- */
:root {
  --budo-green: #58b947;
  --budo-green-dark: #3a9d34;
  --budo-green-soft: #eef9eb;
  --budo-green-glow: rgba(88, 185, 71, 0.25);
  --budo-text: #102033;
  --budo-muted: #586273;
  --budo-border: #e7eaef;
  --budo-bg: #f3f5f7;
  --budo-card: #fff;
  --budo-surface: #fafbfc;
  --budo-accent: #ff8c42;
  --budo-accent-soft: #fff3eb;
  --budo-dark: #0B2230;
  --budo-dark-light: #132d42;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-xl: 32px;
  --shadow-soft: 0 8px 24px rgba(16, 32, 51, 0.08);
  --shadow-premium: 0 14px 34px rgba(16, 32, 51, 0.12);
  --shadow-glow: 0 0 30px rgba(88, 185, 71, 0.15);
  --container: 1080px;
  --article-width: 760px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Base Reset --- */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--budo-bg);
  color: var(--budo-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; height: auto; }
.container { width: min(100% - 1.5rem, var(--container)); margin: 0 auto; }

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  background: var(--budo-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 1030;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  gap: 0.75rem;
}
.brand img { height: 38px; width: auto; display: block; }
.nav-links { display: none; gap: 1.5rem; }
.nav-links a {
  color: rgba(255, 255, 255, 0.75);
  font-weight: 600;
  font-size: 0.95rem;
  position: relative;
  padding: 0.25rem 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--budo-green);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--budo-green); }
.nav-links a.active::after { width: 100%; }

/* Mobile Nav Toggle */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: #fff;
  font-size: 1.4rem;
  border-radius: 10px;
  transition: background var(--transition);
}
.nav-toggle:hover { background: rgba(255, 255, 255, 0.1); }
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--budo-dark);
  backdrop-filter: blur(20px);
  z-index: 1040;
  padding: 1.5rem;
  flex-direction: column;
  animation: fadeIn 0.2s ease;
}
.mobile-nav.open { display: flex; }
.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}
.mobile-nav-links { display: flex; flex-direction: column; gap: 0.5rem; }
.mobile-nav-links a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  transition: background var(--transition);
}
.mobile-nav-links a:hover { background: rgba(255, 255, 255, 0.08); }
.mobile-nav-links a i { font-size: 1.3rem; color: var(--budo-green); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--budo-green), var(--budo-green-dark));
  color: #fff;
  box-shadow: 0 6px 20px var(--budo-green-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px var(--budo-green-glow);
}
.btn-soft {
  border: 1.5px solid #9bd48e;
  color: var(--budo-green-dark);
  background: var(--budo-green-soft);
}
.btn-soft:hover {
  background: #ddf5d5;
  border-color: var(--budo-green);
}
.btn-outline {
  border: 1.5px solid var(--budo-border);
  color: var(--budo-text);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--budo-green);
  color: var(--budo-green-dark);
  background: var(--budo-green-soft);
}
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.85rem; }
.btn-lg { padding: 0.85rem 1.75rem; font-size: 1.05rem; }
.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 12px;
}

/* --- Hero --- */
.hero {
  padding: 2rem 0 3rem;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -120px;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(88, 185, 71, 0.08), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-panel {
  background: var(--budo-card);
  border: 1px solid var(--budo-border);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}
.hero-panel::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(88, 185, 71, 0.1), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-layout {
  display: grid;
  gap: 1.25rem;
  align-items: center;
}
.hero-copy {
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--budo-accent-soft);
  color: #bd5b20;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.82rem;
}
.hero-panel h1 {
  font-size: 2.25rem;
  line-height: 1.15;
  margin: 0.5rem 0;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.hero-panel h1 .highlight { color: var(--budo-green); }
.hero-panel .lead {
  margin: 0;
  color: var(--budo-muted);
  font-size: 1.05rem;
  line-height: 1.5;
}
.hero-media {
  position: relative;
  z-index: 1;
}
.hero-art {
  display: block;
  width: min(100%, 440px);
  margin: 0 auto;
  filter: drop-shadow(0 24px 38px rgba(32, 76, 122, 0.14));
  animation: float 3s ease-in-out infinite;
}
.hero-art img {
  display: block;
  width: 100%;
  height: auto;
}

/* --- Search Input --- */
.search-box {
  position: relative;
}
.search-box .search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--budo-muted);
  font-size: 1.1rem;
  pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 0.9rem 1rem 0.9rem 2.8rem;
  border: 1.5px solid var(--budo-border);
  border-radius: 14px;
  font-size: 1rem;
  color: var(--budo-text);
  background: var(--budo-surface);
  transition: all var(--transition);
  font-family: inherit;
}
.search-input::placeholder { color: #9ca3b4; }
.search-input:focus {
  outline: none;
  border-color: var(--budo-green);
  box-shadow: 0 0 0 4px rgba(88, 185, 71, 0.1);
  background: #fff;
}

/* --- Category Chips --- */
.quick-cats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1.5px solid var(--budo-border);
  padding: 0.55rem 0.7rem;
  border-radius: 14px;
  background: #fff;
  font-size: 0.92rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
}
.chip:hover {
  border-color: var(--budo-green);
  background: var(--budo-green-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}
.chip.is-active {
  background: var(--budo-green-soft);
  border-color: var(--budo-green);
  color: var(--budo-green-dark);
}
.chip i { font-size: 1.05rem; }

/* --- Cards --- */
.card {
  background: linear-gradient(160deg, #ffffff, #fbfcfe);
  border: 1px solid #e3e8ef;
  border-radius: var(--radius-md);
  padding: 1rem;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition);
  display: block;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-premium);
  border-color: #d4dde8;
}
.card-flat {
  background: var(--budo-surface);
  border: 1px solid var(--budo-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  transition: all var(--transition);
}
.card-flat:hover {
  border-color: var(--budo-green);
  background: var(--budo-green-soft);
}

/* Category Card */
.category-card {
  background: var(--budo-card);
  border: 1.5px solid var(--budo-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}
.category-card::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(88, 185, 71, 0.06), transparent 70%);
  border-radius: 50%;
}
.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-premium);
  border-color: var(--budo-green);
}
.category-card .cat-icon {
  font-size: 2rem;
  line-height: 1;
}
.category-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}
.category-card p {
  margin: 0;
  color: var(--budo-muted);
  font-size: 0.88rem;
  line-height: 1.4;
}
.category-card .cat-count {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--budo-green-dark);
  margin-top: auto;
  padding-top: 0.5rem;
}

/* Article Card */
.article-card {
  display: block;
}
.article-card__meta {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  color: var(--budo-muted);
  font-size: 0.85rem;
}
.article-card__meta span {
  background: var(--budo-surface);
  border: 1px solid #e5ebf2;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.8rem;
}
.article-card h3 {
  margin: 0.5rem 0;
  font-size: 1.1rem;
  line-height: 1.35;
  font-weight: 700;
}
.article-card p {
  color: var(--budo-muted);
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.5;
}
.article-card .read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--budo-green-dark);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 0.6rem;
  transition: gap var(--transition);
}
.article-card:hover .read-more { gap: 0.6rem; }

/* Featured Card */
.featured-card {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 0.85rem;
  align-items: center;
}
.featured-card img {
  width: 88px;
  height: 88px;
  object-fit: contain;
  background: var(--budo-green-soft);
  border-radius: 16px;
  padding: 8px;
}
.featured-card h3 { font-size: 1.1rem; line-height: 1.3; }

/* --- Featured Block --- */
.featured-block { margin-top: 1.25rem; }
.featured-block h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 1rem;
}
.featured-list { display: grid; gap: 0.85rem; }

/* --- Stats Row --- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 1.25rem 0;
}
.stat-item {
  text-align: center;
  padding: 0.75rem 0.5rem;
  background: var(--budo-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--budo-border);
}
.stat-number {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--budo-green-dark);
  line-height: 1.2;
}
.stat-label {
  display: block;
  font-size: 0.78rem;
  color: var(--budo-muted);
  font-weight: 600;
  margin-top: 0.15rem;
}

/* --- Section Headers --- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}
.section-header h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.01em;
}
.section-header a {
  color: var(--budo-green-dark);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* --- Grid Layouts --- */
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }

/* --- Article Page --- */
.breadcrumb {
  font-size: 0.88rem;
  color: var(--budo-muted);
  padding-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.breadcrumb a:hover { color: var(--budo-green-dark); }
.breadcrumb .sep { color: var(--budo-border); }

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--budo-green), var(--budo-green-dark));
  z-index: 1050;
  transition: width 0.1s linear;
  border-radius: 0 3px 3px 0;
}

.article-page {
  max-width: var(--article-width);
  margin: 0 auto;
  padding: 0 1rem 2.5rem;
}
.article-header {
  background: linear-gradient(160deg, #ffffff, #f7fafc);
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  margin-top: 0.75rem;
}
.article-header h1 {
  font-size: 1.85rem;
  line-height: 1.2;
  margin: 0.65rem 0 0.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.article-header .lead {
  color: var(--budo-muted);
  margin: 0;
  font-size: 1rem;
}

/* Article Content Boxes */
.box {
  background: linear-gradient(180deg, #ffffff, #fcfdff);
  border: 1px solid #e1e7ef;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  margin: 1rem 0;
  box-shadow: 0 6px 20px rgba(16, 32, 51, 0.05);
}
.box h2 {
  margin: 0 0 0.6rem;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.box ul, .box ol { padding-left: 1.25rem; margin: 0.35rem 0; }
.box li { margin: 0.4rem 0; line-height: 1.55; }
.box p { margin: 0.35rem 0; line-height: 1.6; }

/* Special Box Types */
.box-tip {
  border-left: 4px solid var(--budo-green);
  background: linear-gradient(135deg, #f0faf0, #ffffff);
}
.box-warning {
  border-left: 4px solid var(--budo-accent);
  background: linear-gradient(135deg, #fff8f0, #ffffff);
}
.box-app {
  border: 2px solid var(--budo-green);
  background: linear-gradient(135deg, var(--budo-green-soft), #ffffff);
  border-radius: var(--radius-lg);
}

/* Table of Contents */
.toc {
  background: var(--budo-surface);
  border: 1px solid var(--budo-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}
.toc h3 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--budo-muted);
  margin: 0 0 0.6rem;
}
.toc ol {
  margin: 0;
  padding-left: 1.2rem;
}
.toc li {
  margin: 0.35rem 0;
  font-size: 0.92rem;
}
.toc a {
  color: var(--budo-text);
  font-weight: 500;
}
.toc a:hover { color: var(--budo-green-dark); }

/* Share Buttons */
.share-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 1.5rem 0 0.5rem;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1.5px solid var(--budo-border);
  background: #fff;
  transition: all var(--transition);
}
.share-btn:hover {
  border-color: var(--budo-green);
  background: var(--budo-green-soft);
}
.share-btn i { font-size: 1rem; }

/* Related Articles */
.related-section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--budo-border);
}
.related-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 1rem;
}
.related-grid {
  display: grid;
  gap: 0.75rem;
}

/* Article Navigation */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.article-nav a {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem;
  border: 1.5px solid var(--budo-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.article-nav a:hover {
  border-color: var(--budo-green);
  background: var(--budo-green-soft);
}
.article-nav .nav-label {
  font-size: 0.78rem;
  color: var(--budo-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.article-nav .nav-title {
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.3;
}
.article-nav .next { text-align: right; }

/* --- About Page --- */
.about-hero {
  text-align: center;
  padding: 2.5rem 0;
}
.about-hero h1 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}
.about-hero p {
  color: var(--budo-muted);
  font-size: 1.1rem;
  max-width: 540px;
  margin: 0 auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.feature-item {
  background: var(--budo-card);
  border: 1.5px solid var(--budo-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-align: center;
  transition: all var(--transition);
}
.feature-item:hover {
  border-color: var(--budo-green);
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}
.feature-item .fi-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
.feature-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
}
.feature-item p {
  color: var(--budo-muted);
  font-size: 0.85rem;
  margin: 0;
  line-height: 1.4;
}

/* --- App Guide Cards --- */
.guide-card {
  background: var(--budo-card);
  border: 1.5px solid var(--budo-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-soft);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.guide-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--budo-green), var(--budo-green-dark));
  opacity: 0;
  transition: opacity var(--transition);
}
.guide-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-premium);
  border-color: var(--budo-green);
}
.guide-card:hover::before { opacity: 1; }
.guide-card .guide-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--budo-green-soft);
  border-radius: 14px;
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}
.guide-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
}
.guide-card p {
  color: var(--budo-muted);
  font-size: 0.88rem;
  margin: 0;
  line-height: 1.5;
}
.guide-card .guide-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--budo-green-dark);
  font-weight: 600;
  font-size: 0.88rem;
  margin-top: 0.75rem;
}

/* --- Search Results --- */
.search-hero { padding: 2rem 0 1rem; }
.search-hero h1 {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0 0 1rem;
}
.results-count {
  font-size: 0.9rem;
  color: var(--budo-muted);
  font-weight: 600;
  margin: 0.75rem 0;
}
.popular-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0;
}
.popular-tag {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--budo-surface);
  border: 1px solid var(--budo-border);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--budo-muted);
  transition: all var(--transition);
  cursor: pointer;
}
.popular-tag:hover {
  border-color: var(--budo-green);
  color: var(--budo-green-dark);
  background: var(--budo-green-soft);
}

/* --- Footer --- */
.site-footer {
  margin-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2rem 0;
  color: rgba(255, 255, 255, 0.6);
  background: var(--budo-dark);
}
.footer-brand img { height: 42px; width: auto; margin-bottom: 0.5rem; }
.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}
.footer-links a {
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
}
.footer-links a:hover { color: var(--budo-green); }
.footer-bottom {
  font-size: 0.82rem;
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.4);
}

/* --- Animations --- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes countUp {
  from { opacity: 0; transform: scale(0.5); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

.animate-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* --- Utility Classes --- */
.text-center { text-align: center; }
.text-muted { color: var(--budo-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.gap-2 { gap: 1rem; }

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
}
.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
}
.empty-state h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}
.empty-state p {
  color: var(--budo-muted);
  margin: 0;
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--budo-green), var(--budo-green-dark));
  border-radius: var(--radius-xl);
  padding: 2rem 1.5rem;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}
.cta-banner h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 0.5rem;
  position: relative;
}
.cta-banner p {
  margin: 0 0 1rem;
  opacity: 0.9;
  font-size: 1rem;
  position: relative;
}
.cta-banner .btn {
  background: #fff;
  color: var(--budo-green-dark);
  font-weight: 700;
  position: relative;
}
.cta-banner .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* --- Responsive --- */
@media (min-width: 640px) {
  .quick-cats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 860px) {
  .nav-links { display: flex; }
  .nav-toggle { display: none; }
  .hero-panel { padding: 2rem; }
  .hero-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 420px);
    gap: 1.5rem 2rem;
  }
  .hero-copy {
    max-width: 640px;
  }
  .hero-panel h1 { font-size: 2.75rem; }
  .featured-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .quick-cats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .article-header h1 { font-size: 2.2rem; }
  .article-page { padding-bottom: 3rem; }
  .stats-row { gap: 1rem; }
  .related-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .about-hero h1 { font-size: 2.75rem; }
}

@media (min-width: 1024px) {
  .hero-panel { padding: 2.25rem; }
  .hero-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(360px, 460px);
  }
  .quick-cats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 859px) {
  .hero-panel {
    padding: 1.25rem;
  }
  .hero-media {
    order: -1;
  }
  .hero-art {
    width: min(100%, 520px);
    margin-bottom: 0.25rem;
  }
}

/* --- Embed Mode (inside iframe) --- */
html.embed, body.embed {
  margin: 0;
  padding: 0;
  background: #fff;
}
html.embed .site-header,
html.embed .site-footer,
html.embed [data-mobile-nav],
body.embed .site-header,
body.embed .site-footer,
body.embed [data-mobile-nav] {
  display: none !important;
}
html.embed .hero,
body.embed .hero {
  padding-top: 1rem;
}
html.embed .article-page,
body.embed .article-page {
  padding-top: 0.5rem;
}
html.embed .breadcrumb,
body.embed .breadcrumb {
  padding-top: 0.5rem;
}
html.embed .reading-progress,
body.embed .reading-progress {
  top: 0;
}