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

:root {
  --primary: #1a6fc4;
  --primary-dark: #145299;
  --primary-light: #e8f1fc;
  --accent: #f4801a;
  --text: #1a1a2e;
  --text-sub: #555;
  --border: #dde3ed;
  --bg: #f5f7fb;
  --white: #fff;
  --shadow: 0 2px 12px rgba(26,111,196,0.10);
  --radius: 12px;
  --font: 'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; font-size: 16px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ===== HEADER ===== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}
.header-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.2rem; font-weight: 800; color: var(--primary);
}
.logo-icon { font-size: 1.5rem; }

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  padding: 6px 14px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 500; color: var(--text-sub);
  transition: background 0.15s, color 0.15s;
}
.site-nav a:hover, .site-nav a.active {
  background: var(--primary-light); color: var(--primary);
}

/* AdSense - 상단 리더보드 */
.ad-leaderboard {
  background: var(--white); border-top: 1px solid var(--border);
  display: flex; justify-content: center; padding: 8px 0;
}
.ad-placeholder {
  background: #f0f4fa; border: 1px dashed #c5d3e8;
  display: flex; align-items: center; justify-content: center;
  color: #a0b0c8; font-size: 0.8rem; border-radius: 4px;
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #2d8cf0 100%);
  color: var(--white); text-align: center;
  padding: 60px 20px 50px;
}
.hero h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; margin-bottom: 12px; line-height: 1.3; }
.hero p { font-size: 1rem; opacity: 0.88; margin-bottom: 32px; }

.search-box {
  max-width: 560px; margin: 0 auto;
  display: flex; gap: 0;
  background: var(--white); border-radius: 50px;
  overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.18);
}
.search-box input {
  flex: 1; padding: 14px 20px; border: none; outline: none;
  font-size: 1rem; font-family: var(--font); color: var(--text);
}
.search-box button {
  padding: 14px 24px; background: var(--accent); border: none; cursor: pointer;
  color: var(--white); font-size: 1rem; font-weight: 700; font-family: var(--font);
  transition: background 0.15s;
}
.search-box button:hover { background: #d96c10; }

.hero-tags { margin-top: 20px; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.hero-tags a {
  background: rgba(255,255,255,0.18); color: var(--white);
  padding: 5px 14px; border-radius: 20px; font-size: 0.82rem;
  border: 1px solid rgba(255,255,255,0.3); transition: background 0.15s;
}
.hero-tags a:hover { background: rgba(255,255,255,0.3); }

/* ===== MAIN LAYOUT ===== */
.main-wrap {
  max-width: 1100px; margin: 0 auto;
  padding: 40px 20px;
  display: grid; grid-template-columns: 1fr 300px; gap: 32px;
}

/* ===== SECTION TITLE ===== */
.section-title {
  font-size: 1.1rem; font-weight: 800; color: var(--text);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.section-title::before {
  content: ''; display: block;
  width: 4px; height: 20px; background: var(--primary); border-radius: 2px;
}

/* ===== CATEGORY CARDS ===== */
.category-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px;
  margin-bottom: 36px;
}
.cat-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 12px;
  text-align: center; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.cat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}
.cat-icon { font-size: 2rem; margin-bottom: 8px; }
.cat-name { font-size: 0.88rem; font-weight: 700; color: var(--text); }
.cat-count { font-size: 0.75rem; color: var(--text-sub); margin-top: 3px; }

/* ===== POST CARDS ===== */
.post-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 36px; }
.post-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 22px;
  display: flex; gap: 16px; align-items: flex-start;
  transition: box-shadow 0.15s, transform 0.15s;
}
.post-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.post-badge {
  min-width: 56px; height: 56px; border-radius: 10px;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; flex-shrink: 0;
}
.post-info { flex: 1; }
.post-category {
  font-size: 0.72rem; font-weight: 700; color: var(--primary);
  text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px;
}
.post-title {
  font-size: 1rem; font-weight: 700; color: var(--text);
  margin-bottom: 6px; line-height: 1.4;
  transition: color 0.15s;
}
.post-card:hover .post-title { color: var(--primary); }
.post-desc { font-size: 0.85rem; color: var(--text-sub); line-height: 1.5; }
.post-meta { font-size: 0.75rem; color: #aaa; margin-top: 8px; }

/* AdSense - 인피드 */
.ad-infeed { margin: 6px 0; }

/* ===== SIDEBAR ===== */
.sidebar { display: flex; flex-direction: column; gap: 24px; }

.sidebar-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.sidebar-title {
  font-size: 0.95rem; font-weight: 800; color: var(--text);
  margin-bottom: 14px; padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-light);
}

.popular-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.popular-list li { display: flex; gap: 10px; align-items: flex-start; }
.pop-num {
  min-width: 22px; height: 22px; border-radius: 50%;
  background: var(--primary); color: var(--white);
  font-size: 0.72rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  margin-top: 2px;
}
.pop-num.top3 { background: var(--accent); }
.popular-list a { font-size: 0.87rem; font-weight: 500; color: var(--text); line-height: 1.4; }
.popular-list a:hover { color: var(--primary); }

.quick-links { display: flex; flex-direction: column; gap: 8px; }
.quick-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg);
  font-size: 0.87rem; font-weight: 500; color: var(--text);
  transition: background 0.15s, border-color 0.15s;
}
.quick-link:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
.quick-link-icon { font-size: 1.1rem; }

.notice-box {
  background: #fffbf0; border: 1px solid #f4e5b0;
  border-radius: var(--radius); padding: 14px 16px;
  font-size: 0.83rem; color: #7a6020; line-height: 1.6;
}
.notice-box strong { color: #c87820; }

/* ===== BANNER STRIP ===== */
.banner-strip {
  background: linear-gradient(90deg, #1a6fc4 0%, #2d8cf0 100%);
  color: var(--white); text-align: center;
  padding: 24px 20px; margin: 0;
}
.banner-strip h2 { font-size: 1.2rem; font-weight: 800; margin-bottom: 8px; }
.banner-strip p { font-size: 0.88rem; opacity: 0.88; margin-bottom: 16px; }
.btn-primary {
  display: inline-block; padding: 11px 28px;
  background: var(--white); color: var(--primary);
  border-radius: 50px; font-weight: 800; font-size: 0.95rem;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.2); }

/* ===== FOOTER ===== */
.site-footer {
  background: #1a1a2e; color: #a0a8b8;
  padding: 36px 20px 24px;
  font-size: 0.83rem; line-height: 1.8;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 32px;
}
.footer-logo { font-size: 1.1rem; font-weight: 800; color: var(--white); margin-bottom: 8px; }
.footer-links { display: flex; flex-direction: column; gap: 6px; }
.footer-links a { color: #a0a8b8; transition: color 0.15s; }
.footer-links a:hover { color: var(--white); }
.footer-bottom {
  max-width: 1100px; margin: 24px auto 0;
  padding-top: 16px; border-top: 1px solid #2a2a40;
  text-align: center; color: #606880;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .main-wrap { grid-template-columns: 1fr; }
  .sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .header-inner { height: 52px; }
  .site-nav a { padding: 5px 10px; font-size: 0.82rem; }
  .hero { padding: 40px 16px 36px; }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .sidebar { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 20px; }
  .post-card { flex-direction: column; gap: 10px; }
}