/* ===== RESET & BASE ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background: #f8fafc; color: #1a1a1a; line-height: 1.6; padding: 0 16px; }
.container { max-width: 1200px; margin: 0 auto; }

/* ===== HEADER ===== */
header { padding: 20px 0; border-bottom: 1px solid #e5e7eb; }
.header-container { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
.logo { display: block; line-height: 0; }
nav a { margin-left: 20px; text-decoration: none; color: #1a1a1a; font-weight: 500; font-size: 16px; transition: color 0.2s; }
nav a:hover { color: #2e7d32; }
.search { display: flex; gap: 8px; }
.search input { padding: 8px 16px; border: 1px solid #d1d5db; border-radius: 30px; font-size: 16px; background: #fff; transition: border 0.2s; }
.search input:focus { border-color: #2e7d32; outline: none; }
.search button { padding: 8px 20px; background: #2e7d32; color: #fff; border: none; border-radius: 30px; font-size: 16px; cursor: pointer; transition: background 0.2s; }
.search button:hover { background: #1b5e20; }
.hamburger { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; }
.hamburger span { width: 28px; height: 3px; background: #1a1a1a; border-radius: 2px; }

/* ===== BREADCRUMB ===== */
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 14px; padding: 16px 0 10px; }
.breadcrumb a { color: #1a1a1a; text-decoration: none; font-weight: 400; transition: color 0.2s; }
.breadcrumb a:hover { color: #2e7d32; text-decoration: underline; }
.breadcrumb-sep { color: #9ca3af; font-size: 18px; font-weight: 300; }
.breadcrumb-current { color: #2e7d32; font-weight: 600; background: rgba(46,125,50,0.08); padding: 2px 12px; border-radius: 20px; }

/* ===== HERO ===== */
.hero { text-align: center; padding: 40px 0 30px; }
.hero h1 { font-size: 42px; font-weight: 700; background: linear-gradient(135deg, #1a1a1a 0%, #2e7d32 80%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 16px; }
.hero p { font-size: 20px; max-width: 700px; margin: 0 auto 24px; color: #374151; }

/* ===== BUTTONS ===== */
.btn-primary { display: inline-block; padding: 14px 36px; background: #2e7d32; color: #fff; border-radius: 40px; text-decoration: none; font-weight: 600; font-size: 18px; transition: transform 0.2s, box-shadow 0.2s; box-shadow: 0 4px 14px rgba(46,125,50,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(46,125,50,0.4); }

/* ===== STATS ===== */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 20px; margin: 30px 0; }
.stat-card { background: rgba(255,255,255,0.7); backdrop-filter: blur(8px); border-radius: 20px; padding: 24px 16px; text-align: center; border: 1px solid rgba(255,255,255,0.8); box-shadow: 0 8px 32px rgba(0,0,0,0.05); transition: transform 0.3s; }
.stat-card:hover { transform: translateY(-4px); }
.stat-number { display: block; font-size: 32px; font-weight: 700; color: #2e7d32; }
.stat-label { font-size: 14px; color: #4b5563; margin-top: 4px; }

/* ===== GRID & CARDS ===== */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; margin: 30px 0; }
.card { background: rgba(255,255,255,0.7); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.8); border-radius: 20px; padding: 24px; box-shadow: 0 8px 32px rgba(0,0,0,0.05); transition: transform 0.3s, box-shadow 0.3s; height: 100%; }
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.08); }
.card-icon { font-size: 32px; margin-bottom: 8px; }
.card h3 { font-size: 20px; margin-bottom: 6px; }
.card h3 a { color: #1a1a1a; text-decoration: none; }
.card h3 a:hover { color: #2e7d32; }
.card p { color: #4b5563; font-size: 15px; }
.tag { display: inline-block; background: #2e7d32; color: #fff; font-size: 12px; padding: 2px 14px; border-radius: 20px; margin-top: 12px; }
.card-link { display: block; text-decoration: none; color: inherit; }
.card-link .card { transition: transform 0.3s, box-shadow 0.3s; }
.card-link:hover .card { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(0,0,0,0.10); }

/* ===== INTRO ===== */
.intro { font-size: 18px; color: #374151; max-width: 800px; margin-bottom: 32px; }

/* ===== BLOG LIST ===== */
.blog-list { list-style: none; padding: 0; }
.blog-list li { padding: 10px 0; border-bottom: 1px solid #e5e7eb; display: flex; flex-wrap: wrap; gap: 12px; align-items: baseline; }
.blog-list li:last-child { border-bottom: none; }
.blog-date { color: #6b7280; font-size: 14px; min-width: 120px; }
.blog-list a { color: #1a1a1a; text-decoration: none; font-weight: 500; }
.blog-list a:hover { color: #2e7d32; text-decoration: underline; }

/* ===== FAQ ===== */
.faq-block { margin: 40px 0; padding: 24px; background: rgba(255,255,255,0.6); border-radius: 24px; backdrop-filter: blur(4px); border: 1px solid rgba(255,255,255,0.8); }
.faq-block details { margin: 8px 0; padding: 12px 16px; background: #fff; border-radius: 16px; border: 1px solid #e5e7eb; }
.faq-block summary { font-weight: 600; cursor: pointer; }

/* ===== TIP BLOCK ===== */
.tip-block { margin: 32px 0; padding: 20px 24px; background: #e8f5e9; border-radius: 16px; border-left: 4px solid #2e7d32; }
.tip-block h3 { color: #1b5e20; margin-bottom: 4px; }

/* ===== FOOTER ===== */
footer { margin-top: 48px; padding: 32px 0; border-top: 1px solid #e5e7eb; }
.footer-container { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
.footer-links a { color: #1a1a1a; text-decoration: none; margin-right: 24px; font-size: 14px; }
.footer-links a:hover { color: #2e7d32; text-decoration: underline; }
.footer-copy { font-size: 14px; color: #6b7280; }

/* ===== ANIMATIONS ===== */
.fade-in { opacity: 0; transform: translateY(20px); animation: fadeInUp 0.6s ease forwards; }
.fade-in:nth-child(2) { animation-delay: 0.05s; }
.fade-in:nth-child(3) { animation-delay: 0.10s; }
.fade-in:nth-child(4) { animation-delay: 0.15s; }
.fade-in:nth-child(5) { animation-delay: 0.20s; }
.fade-in:nth-child(6) { animation-delay: 0.25s; }
.fade-in:nth-child(7) { animation-delay: 0.30s; }
.fade-in:nth-child(8) { animation-delay: 0.35s; }
@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }

/* ===== CONTENT GRID ===== */
.content-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; margin: 32px 0; }
.content-main h2 { font-size: 26px; margin: 24px 0 12px; }
.content-main ul, .content-main ol { padding-left: 24px; margin: 8px 0 16px; }
.content-main li { margin-bottom: 4px; }

/* ===== SIDEBAR ===== */
.download-box { background: #f0f8f0; border: 2px solid #2e7d32; border-radius: 20px; padding: 24px; text-align: center; }
.download-box .btn-primary { display: inline-block; width: 100%; text-align: center; margin: 12px 0; }
.download-box .rating { color: #f1c40f; font-size: 24px; letter-spacing: 4px; }
.file-info { color: #555; font-size: 14px; }
.related-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.related-links a { background: #e5e7eb; padding: 8px 16px; border-radius: 30px; text-decoration: none; color: #1a1a1a; font-size: 14px; transition: background 0.2s; }
.related-links a:hover { background: #2e7d32; color: #fff; }

/* ===== REVIEWS ===== */
.review { border-top: 1px solid #e5e7eb; padding: 16px 0; }
.review-name { font-weight: 600; }
.review-date { color: #888; font-size: 13px; margin-left: 8px; }

/* ===== WHY CHOOSE ===== */
.why-choose { margin: 40px 0; }
.why-choose .grid { margin: 20px 0; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  nav { display: none; width: 100%; flex-direction: column; align-items: flex-start; margin-top: 10px; }
  nav.open { display: flex; }
  nav a { margin: 6px 0; }
  .search { width: 100%; }
  .search input { flex: 1; }
  .hero h1 { font-size: 30px; }
  .hero p { font-size: 17px; }
  .blog-list li { flex-direction: column; align-items: flex-start; gap: 4px; }
  .footer-container { flex-direction: column; align-items: center; text-align: center; }
  .footer-links a { margin: 0 12px; }
  .grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .content-grid { grid-template-columns: 1fr; gap: 24px; }
}