*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #fff8fc;
  --surface: #ffffff;
  --surface2: #fdf0f7;
  --border: rgba(220,160,200,0.25);
  --border-strong: rgba(210,140,190,0.4);
  --text: #2d1b3d;
  --text-sub: #9b6b8a;
  --text-muted: #c8a0b8;
  --accent: #f472b6;
  --accent2: #a78bfa;
  --accent-grad: linear-gradient(135deg, #f472b6, #a78bfa);
  --accent-dim: rgba(244,114,182,0.1);
  --kpop: #db2777;
  --kpop-dim: rgba(244,114,182,0.12);
  --viral: #7c3aed;
  --viral-dim: rgba(167,139,250,0.12);
  --challenge: #7c3aed;
  --challenge-dim: rgba(167,139,250,0.12);
  --pick: #f59e0b;
  --pick-dim: rgba(245,158,11,0.12);
  --radius: 12px;
  --radius-sm: 8px;
}

html { background: var(--bg); color: var(--text); font-family: 'Pretendard Variable', 'Pretendard', -apple-system, sans-serif; }
body { min-height: 100vh; }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,248,252,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 0.5px solid var(--border);
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 8px; }
.nav-logo-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--accent-grad); display: flex; align-items: center; justify-content: center;
}
.nav-logo-mark svg { width: 16px; height: 16px; }
.nav-title { font-size: 17px; font-weight: 700; letter-spacing: -0.02em; color: var(--text); }
.nav-sub { font-size: 11px; color: var(--accent); letter-spacing: 0.02em; }

/* HERO 표어/안내 */
.hero { padding: 22px 20px 2px; }
.hero-slogan {
  font-size: 24px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.2;
  color: var(--accent);
  background: var(--accent-grad);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc { font-size: 13px; color: var(--text-sub); margin-top: 7px; line-height: 1.5; }

/* SEARCH */
.search-wrap { padding: 14px 20px 0; }
.search-bar {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 0.5px solid var(--border-strong);
  border-radius: var(--radius); padding: 12px 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-bar:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(244,114,182,0.12);
}
.search-bar svg { width: 16px; height: 16px; color: var(--text-muted); flex-shrink: 0; }
.search-bar input {
  background: none; border: none; outline: none;
  font-size: 14px; color: var(--text); flex: 1;
  font-family: inherit;
}
.search-bar input::placeholder { color: var(--text-muted); }

/* TABS */
.tabs { display: flex; gap: 6px; padding: 16px 20px; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 99px;
  font-size: 13px; font-weight: 500; cursor: pointer;
  border: 0.5px solid var(--border-strong); color: var(--text-sub);
  background: var(--surface); transition: all 0.15s; white-space: nowrap; flex-shrink: 0;
}
.tab:hover { border-color: var(--accent); color: var(--kpop); }
.tab.active { background: var(--accent-grad); border-color: transparent; color: #fff; }
.tab-dot { width: 6px; height: 6px; border-radius: 50%; }
.tab-dot.kpop { background: var(--kpop); }
.tab-dot.viral { background: var(--viral); }
.tab-dot.challenge { background: var(--challenge); }
.tab-dot.pick { background: var(--pick); }

/* SECTION HEADER */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 4px 20px 12px;
}
.section-title { font-size: 13px; font-weight: 600; color: var(--text-muted); letter-spacing: 0.06em; text-transform: uppercase; }
.section-count { font-size: 12px; color: var(--text-muted); }

/* CARD GRID */
.card-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 12px; padding: 0 20px 24px;
}

/* FOOTER 조회수 (연하게) */
.site-foot { text-align: center; padding: 8px 20px 40px; }
.view-counter { font-size: 10px; color: var(--text-muted); opacity: 0.5; letter-spacing: 0.03em; }

/* SONG CARD */
.song-card {
  background: var(--surface); border-radius: var(--radius);
  border: 0.5px solid var(--border);
  overflow: hidden; cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.song-card:hover {
  transform: translateY(-2px);
  border-color: rgba(244,114,182,0.4);
  box-shadow: 0 6px 20px rgba(244,114,182,0.12);
}
.song-card:active { transform: scale(0.97); }

.thumb-wrap { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--surface2); }
.thumb-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.3s; }
.song-card:hover .thumb-wrap img { transform: scale(1.04); }
.thumb-fallback {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 28px;
}
.thumb-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(45,27,61,0.45) 100%);
}
.cat-badge {
  position: absolute; top: 7px; left: 7px;
  font-size: 10px; font-weight: 700; padding: 3px 8px; border-radius: 99px;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.cat-badge.kpop { background: rgba(255,255,255,0.88); color: var(--kpop); }
.cat-badge.viral { background: rgba(255,255,255,0.88); color: var(--viral); }
.cat-badge.challenge { background: rgba(255,255,255,0.88); color: var(--challenge); }
.cat-badge.pick { background: rgba(255,255,255,0.88); color: var(--pick); }
.play-icon {
  position: absolute; bottom: 7px; right: 7px;
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(255,255,255,0.88);
  display: flex; align-items: center; justify-content: center;
}
.play-icon svg { width: 12px; height: 12px; margin-left: 1px; fill: var(--kpop); }

.song-info { padding: 10px 10px 11px; }
.song-title { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.song-artist { font-size: 11px; color: var(--text-sub); }

/* EMPTY STATE */
.empty { text-align: center; padding: 60px 20px; color: var(--text-muted); grid-column: 1/-1; }
.empty p:first-child { font-size: 32px; margin-bottom: 12px; }
.empty p:last-child { font-size: 14px; }

/* MODAL OVERLAY */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(45,27,61,0.5); backdrop-filter: blur(4px);
  display: flex; align-items: flex-end; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal-sheet {
  width: 100%; max-width: 480px;
  background: var(--surface); border-radius: 20px 20px 0 0;
  border-top: 0.5px solid var(--border-strong);
  padding: 20px 20px 40px;
  transform: translateY(20px); transition: transform 0.25s cubic-bezier(0.34,1.56,0.64,1);
}
.modal-overlay.open .modal-sheet { transform: translateY(0); }

.modal-handle { width: 36px; height: 4px; background: var(--border-strong); border-radius: 2px; margin: 0 auto 20px; }
.modal-song-info { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.modal-thumb { width: 52px; height: 34px; border-radius: 6px; object-fit: cover; background: var(--surface2); }
.modal-song-title { font-size: 15px; font-weight: 600; color: var(--text); }
.modal-song-artist { font-size: 12px; color: var(--text-sub); margin-top: 2px; }
.modal-label { font-size: 11px; font-weight: 600; color: var(--text-muted); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 12px; }

.type-buttons { display: flex; gap: 10px; }
.type-btn {
  flex: 1; padding: 16px 12px; border-radius: var(--radius);
  border: 0.5px solid var(--border-strong); background: var(--surface);
  cursor: pointer; text-align: center; transition: all 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.type-btn:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 4px 14px rgba(244,114,182,0.14);
}
.type-btn:active { transform: scale(0.97); }
.type-btn-icon { font-size: 24px; display: block; margin-bottom: 8px; }
.type-btn-name { font-size: 14px; font-weight: 600; color: var(--text); display: block; margin-bottom: 3px; }
.type-btn-desc { font-size: 11px; color: var(--text-sub); display: block; }
.type-btn-count { font-size: 10px; color: var(--text-muted); display: block; margin-top: 6px; }

@media (min-width: 480px) {
  .card-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 360px) {
  .card-grid { gap: 8px; padding: 0 14px 80px; }
  .nav { padding: 12px 14px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}