:root{--ink:#18212f;--muted:#6b7280;--paper:#f6f8fc;--surface:#fff;--line:#e4e8f0;--blue:#2563eb;--blue-soft:#eef4ff;--navy:#172554;--tag:#f0f4ff}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Pretendard,"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",Arial,sans-serif;letter-spacing:-.015em}.app-shell{max-width:1100px;margin:auto;padding:24px 28px 80px}.topbar{height:54px;display:flex;align-items:center;justify-content:space-between}.brand{color:var(--ink);font-weight:700;font-size:17px;letter-spacing:-.045em;text-decoration:none}.brand span{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,#3b82f6,#4f46e5);color:white;margin-right:8px}.topbar p{margin:0;color:var(--muted);font-size:12px}.eyebrow{margin:0 0 8px;color:var(--blue);font-size:11px;font-weight:700;letter-spacing:.09em}.filter-panel{margin-top:38px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:30px;box-shadow:0 12px 36px rgba(27,50,93,.07)}.filter-head,.results-head{display:flex;justify-content:space-between;align-items:end;gap:16px}.filter-head h2,.results-head h2{font-size:27px;font-weight:700;letter-spacing:-.05em;margin:0}.reset-button{border:0;background:none;color:var(--muted);font-weight:600;cursor:pointer;padding:8px}.search-field{display:flex;align-items:center;gap:9px;margin-top:21px;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:#fbfcff;color:var(--muted)}.search-field:focus-within{border-color:#8fb4ff;box-shadow:0 0 0 3px #2563eb12}.search-field input{width:100%;border:0;outline:0;background:transparent;font:inherit;color:var(--ink)}.fixed-rule{display:flex;gap:12px;align-items:center;background:var(--blue-soft);border:1px solid #dbe8ff;border-radius:10px;margin:20px 0 24px;padding:14px 16px}.check{display:grid;place-items:center;flex:none;width:24px;height:24px;border-radius:50%;background:var(--blue);color:white;font-size:13px}.fixed-rule strong,.fixed-rule small{display:block}.fixed-rule small{color:var(--muted);font-size:13px;margin-top:2px}.filter-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 30px}fieldset{border:0;padding:0;margin:0;min-width:0}legend{font-weight:700;font-size:14px;margin-bottom:10px}.option-row{display:flex;flex-wrap:wrap;gap:7px}.option-row button,select{font:inherit;font-size:13px;border:1px solid var(--line);border-radius:8px;background:white;color:var(--ink);padding:9px 12px;cursor:pointer;transition:.15s}.option-row button:hover{border-color:#aab9d4;background:#fafcff}.option-row button.active{background:var(--navy);border-color:var(--navy);color:white;box-shadow:0 2px 5px #17255426}select{width:100%;cursor:pointer}.recommend-button{border:0;border-radius:9px;background:var(--blue);color:white;margin-top:32px;padding:14px 19px;font-weight:700;cursor:pointer;box-shadow:0 5px 12px #2563eb36;transition:.15s}.recommend-button:hover{background:#1d4ed8;transform:translateY(-1px)}.recommend-button span{font-size:19px;margin-left:10px}.recommend-button:disabled{opacity:.55;cursor:wait}.results-section{margin-top:76px}.results-head{padding-bottom:16px;border-bottom:1px solid var(--line)}.results-head p{margin:0;color:var(--muted);font-size:13px}.song-list{display:grid;gap:10px;margin-top:18px}.song{border:1px solid var(--line);border-radius:11px;background:var(--surface);overflow:hidden;transition:.15s}.song:hover{border-color:#c7d4ef;box-shadow:0 5px 16px #18213b0a}.song summary{list-style:none;display:flex;gap:14px;align-items:center;padding:17px 18px;cursor:pointer}.song summary::-webkit-details-marker{display:none}.number{font-size:12px;font-weight:700;color:var(--blue)}.song strong,.song small{display:block}.song strong{font-size:16px}.song small{color:var(--muted);font-size:13px;margin-top:3px}.open{margin-left:auto;color:var(--blue);font-size:21px}.song[open] .open{transform:rotate(45deg)}.song-detail{border-top:1px solid var(--line);padding:14px 18px 17px 53px;background:#fcfdff}.tag{display:inline-block;background:var(--tag);color:#415a95;border-radius:5px;font-size:11px;padding:4px 7px;margin:0 4px 5px 0}.song-detail p{color:var(--muted);font-size:13px;margin:8px 0 0}.song-detail b{color:var(--ink);margin-right:8px}.source-button{border:0;border-radius:7px;background:var(--blue-soft);color:var(--blue);font:600 13px inherit;margin-top:13px;padding:8px 10px;cursor:pointer}.empty{padding:30px 0;color:var(--muted)}@media(max-width:640px){.app-shell{padding:18px 16px 56px}.filter-panel{margin-top:26px;padding:21px;border-radius:13px}.filter-grid{grid-template-columns:1fr;gap:20px}.fixed-rule{align-items:flex-start}.results-section{margin-top:60px}.results-head{align-items:start;flex-direction:column}.song-detail{padding-left:18px}.topbar p{font-size:10px}}
.fixed-rule .rule-copy{flex:1}.fixed-rule input{position:absolute;opacity:0;pointer-events:none}.fixed-rule .switch{width:38px;height:22px;border-radius:20px;background:#b8c1d1;position:relative;flex:none;transition:.15s}.fixed-rule .switch:after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;background:#fff;border-radius:50%;transition:.15s;box-shadow:0 1px 3px #17255433}.fixed-rule:has(input:checked) .switch{background:var(--blue)}.fixed-rule:has(input:checked) .switch:after{transform:translateX(16px)}legend small{color:var(--muted);font-size:11px;font-weight:500;margin-left:5px}.multi-options{max-height:112px;overflow:hidden;align-content:flex-start;padding:2px 2px 4px}.multi-options.expanded{max-height:none}.more-options{border:0;background:none;color:var(--blue);font:600 12px inherit;padding:6px 2px 0;cursor:pointer}.more-options:hover{text-decoration:underline}
.source-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:13px}.source-actions .source-button{margin-top:0}.youtube-button{background:#fff0f0;color:#c62828}.instrument-notes{margin-top:12px;padding-top:10px;border-top:1px solid var(--line)}.instrument-notes>b{display:block;margin-bottom:5px}.instrument-notes p{display:flex;gap:8px;margin:5px 0;color:var(--muted);font-size:12px}.instrument-notes p span{flex:none;color:var(--ink);font-weight:700;min-width:38px}
.pagination{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px;margin-top:22px}.page-button{min-width:34px;padding:8px 10px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);cursor:pointer}.page-button.active{background:var(--navy);border-color:var(--navy);color:#fff}.page-button:disabled{opacity:.4;cursor:default}.page-ellipsis{padding:8px 2px;color:var(--muted)}.page-status{margin:0 8px;color:var(--muted);font-size:13px;white-space:nowrap}.page-jump{display:flex;align-items:center;gap:4px;color:var(--muted);font-size:13px;white-space:nowrap}.page-jump input{width:54px;padding:7px 6px;border:1px solid var(--line);border-radius:7px;text-align:center}.page-jump button{padding:7px 9px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);cursor:pointer}
.admin-panel{margin-top:24px;padding:24px;border:1px solid var(--line,#dbe3f0);border-radius:20px;background:#fff;box-shadow:0 12px 30px #1725540d}.admin-head,.admin-toolbar,.admin-file-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.admin-login{display:flex;gap:10px;margin-top:16px}.admin-login input,.admin-file-form input,.admin-file-form select{min-height:40px;padding:0 12px;border:1px solid var(--line,#dbe3f0);border-radius:10px;background:#fff}.admin-login input{flex:1}.admin-message{color:var(--muted);font-size:13px}.admin-files{display:grid;gap:12px;margin-top:16px}.admin-file{padding:16px;border:1px solid var(--line,#dbe3f0);border-radius:14px;background:#f8faff}.admin-file small{display:block;margin-top:7px;color:var(--muted)}.admin-file-form{display:grid;grid-template-columns:120px 140px 1fr auto;gap:8px;margin-top:12px}.admin-file-form .source-button{white-space:nowrap}@media (max-width:700px){.admin-file-form{grid-template-columns:1fr 1fr}.admin-file-form input[data-field="evidence"]{grid-column:1/-1}.admin-login{flex-direction:column}}