:root {
  --bg: #1a1a2e; --bg2: #22223a; --bg3: #2a2a45;
  --text: #e8e8f0; --text2: #a0a0b8; --text3: #6b6b85;
  --primary: #7c6fff; --primary-light: #9d8fff;
  --border: #333355; --accent: #e74c5a;
}
[data-theme="light"] {
  --bg: #f5f5fa; --bg2: #fff; --bg3: #eee;
  --text: #1a1a2e; --text2: #555; --text3: #999;
  --primary: #6c63ff; --primary-light: #7c6fff;
  --border: #ddd; --accent: #e74c5a;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', 'Apple SD Gothic Neo', sans-serif;
  background: var(--bg); color: var(--text); min-height: 100vh;
}
.container { max-width: 700px; margin: 0 auto; padding: 16px; }
.header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.header h1 { font-size: 1.3rem; font-weight: 800; }
.back-btn {
  color: var(--primary); text-decoration: none; font-size: .9rem; font-weight: 600;
  padding: 6px 12px; background: var(--bg2); border: 1px solid var(--border);
}
.back-btn:hover { background: var(--primary); color: #fff; }
.theme-btn {
  background: var(--bg2); border: 1px solid var(--border);
  padding: 6px 10px; cursor: pointer; font-size: 1rem;
}

/* 탭 */
.intro-card {
  background: linear-gradient(135deg, rgba(124,111,255,.1), rgba(124,111,255,.03));
  border: 1px solid var(--border); padding: 16px 20px; margin-bottom: 16px;
  font-size: .88rem; color: var(--text2); line-height: 1.6;
}
.intro-card p { margin: 0 0 6px; }
.intro-card p:last-child { margin: 0; color: var(--primary-light); font-weight: 600; font-size: .9rem; }
.tab-bar { display: flex; gap: 4px; margin-bottom: 16px; background: var(--bg2); padding: 4px; border: 1px solid var(--border); }
.tab-btn {
  flex: 1; padding: 8px; background: none; border: none; color: var(--text2);
  font-size: .84rem; font-weight: 600; cursor: pointer; transition: all .15s;
}
.tab-btn.active { background: var(--primary); color: #fff; }
.tab-btn:hover:not(.active) { color: var(--text); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* 필터 */
.filter-bar { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.filter-btn {
  background: var(--bg2); border: 1px solid var(--border);
  color: var(--text2); padding: 6px 14px; cursor: pointer;
  font-size: .82rem; font-weight: 600; white-space: nowrap;
}
.filter-btn:hover { border-color: var(--primary); color: var(--text); }
.filter-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.search-input {
  flex: 1; min-width: 120px; background: var(--bg2); border: 1px solid var(--border);
  color: var(--text); padding: 6px 12px; font-size: .84rem; outline: none;
}
.search-input:focus { border-color: var(--primary); }

/* 피드 */
.feed-section { margin-bottom: 24px; }
.feed-section-title {
  font-size: .92rem; font-weight: 700; color: var(--text2);
  margin-bottom: 10px; padding-bottom: 6px; border-bottom: 1px solid var(--border);
}
.feed-empty { text-align: center; padding: 20px; color: var(--text3); font-size: .84rem; }
.feed-scroll { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 8px; -webkit-overflow-scrolling: touch; }
.feed-scroll::-webkit-scrollbar { height: 4px; }
.feed-scroll::-webkit-scrollbar-thumb { background: var(--border); }
.feed-video-card {
  flex: 0 0 200px; text-decoration: none; color: var(--text); transition: transform .15s;
}
.feed-video-card:hover { transform: translateY(-2px); }
.feed-video-thumb {
  width: 200px; height: 112px; object-fit: cover; border: 1px solid var(--border); background: var(--bg3);
}
.feed-video-title {
  font-size: .72rem; color: var(--text2); margin-top: 4px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.3;
}
.feed-video-channel { font-size: .68rem; color: var(--text3); margin-top: 2px; }
.feed-video-card.is-short { flex: 0 0 120px; }
.feed-video-thumb.is-short { width: 120px; height: 213px; }
.feed-article {
  display: flex; align-items: flex-start; gap: 10px; padding: 12px;
  background: var(--bg2); border: 1px solid var(--border); margin-bottom: 8px;
  text-decoration: none; color: var(--text); transition: all .15s;
}
.feed-article:hover { border-color: var(--primary); transform: translate(-2px,-2px); box-shadow: 3px 3px 0 rgba(124,111,255,.2); }
.feed-article-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }
.feed-article-info { flex: 1; min-width: 0; }
.feed-article-title { font-size: .86rem; font-weight: 600; }
.feed-article-desc { font-size: .74rem; color: var(--text3); margin-top: 3px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.feed-article-meta { font-size: .7rem; color: var(--text3); margin-top: 4px; }
.feed-more-btn {
  display: block; width: 100%; padding: 10px; margin-top: 4px;
  background: var(--bg3); border: 1px solid var(--border); color: var(--text2);
  font-size: .82rem; font-weight: 600; cursor: pointer; text-align: center;
}
.feed-more-btn:hover { border-color: var(--primary); color: var(--text); }
.feed-x-links { display: flex; flex-wrap: wrap; gap: 8px; }
.feed-x-link {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px;
  background: var(--bg2); border: 1px solid var(--border); text-decoration: none;
  color: var(--text); font-size: .82rem; font-weight: 600; transition: all .15s;
}
.feed-x-link:hover { border-color: var(--primary); background: rgba(124,111,255,.1); }

/* 링크 목록 */
.link-list { display: flex; flex-direction: column; gap: 20px; }
.category-section h2 {
  font-size: .92rem; font-weight: 700; color: var(--text2);
  margin-bottom: 10px; padding-bottom: 6px; border-bottom: 1px solid var(--border);
  text-transform: uppercase; letter-spacing: 1px;
}
.category-cards { display: flex; flex-direction: column; gap: 8px; }
.link-card {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg2); border: 1px solid var(--border);
  padding: 14px 16px; text-decoration: none; color: var(--text); transition: all .15s;
}
.link-card:hover { border-color: var(--primary); transform: translate(-2px,-2px); box-shadow: 3px 3px 0 rgba(124,111,255,.2); }
.link-icon { font-size: 1.4rem; flex-shrink: 0; width: 32px; text-align: center; }
.link-thumb { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.link-info { flex: 1; min-width: 0; }
.link-name { font-size: .9rem; font-weight: 700; }
.link-desc { font-size: .76rem; color: var(--text3); margin-top: 2px; }
.link-arrow { color: var(--text3); font-size: .9rem; flex-shrink: 0; }
.link-del {
  background: var(--accent); color: #fff; border: none; padding: 4px 10px;
  font-size: .72rem; cursor: pointer; flex-shrink: 0;
}
.loading { text-align: center; padding: 40px; color: var(--text3); }

/* 관리 */
.admin-section { background: var(--bg2); border: 1px solid var(--border); padding: 16px; margin-bottom: 16px; }
.admin-section h3 { font-size: .92rem; font-weight: 700; margin-bottom: 12px; }
.add-form { display: flex; flex-direction: column; gap: 8px; }
.add-form input, .add-form select {
  background: var(--bg3); border: 1px solid var(--border); color: var(--text);
  padding: 8px 12px; font-size: .84rem;
}
.btn-add {
  background: var(--primary); color: #fff; border: none; padding: 10px;
  font-size: .88rem; font-weight: 700; cursor: pointer;
}
.btn-add:hover { background: var(--primary-light); }
.admin-link-item {
  display: flex; align-items: center; gap: 10px; padding: 10px;
  background: var(--bg3); margin-bottom: 6px;
}
.admin-link-info { flex: 1; min-width: 0; }
.admin-link-name { font-size: .84rem; font-weight: 600; }
.admin-link-cat { font-size: .72rem; color: var(--text3); }

@media (max-width: 500px) {
  .container { padding: 10px; }
  .filter-bar { gap: 4px; }
  .filter-btn { padding: 5px 10px; font-size: .78rem; }
  .tab-btn { font-size: .78rem; padding: 6px; }
}