/* 패드 먼저(가로·세로 모두). 악보 쪽은 언제나 흰 종이, 둘레만 기기 테마를 따른다. */
:root{
  --bg:#eef1f4; --surface:#ffffff; --ink:#1a1e24; --muted:#5d6673; --line:#d6dbe1;
  --accent:#d4652a; --accent-ink:#ffffff; --accent-soft:#fbeee6;
  --stage:#dde2e8; --chrome:#1d2733; --chrome-ink:#eef2f6; --chrome-muted:#9fb0c2; --chrome-line:#2e3b4a;
  --ok:#2f7d4f; --ok-soft:#e5f3ea; --warn:#a8670b; --warn-soft:#fbf1df; --new:#1f5fd6; --new-soft:#e6eefc;
  --font:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#121519; --surface:#1b1f25; --ink:#e6e9ed; --muted:#9aa3ae; --line:#2b3139;
    --accent:#ea8650; --accent-ink:#1a0d05; --accent-soft:#3a2418;
    --stage:#0c0e11; --chrome:#161b22; --chrome-ink:#e6e9ed; --chrome-muted:#8a96a6; --chrome-line:#262e38;
    --ok:#6cc48f; --ok-soft:#1b2e23; --warn:#e3a94f; --warn-soft:#33281a; --new:#7fa3ff; --new-soft:#1c2740;
    color-scheme:dark;
  }
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 var(--font);
  -webkit-text-size-adjust:100%;overscroll-behavior:none;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
button{font:inherit;color:inherit;cursor:pointer;border:1px solid var(--line);background:var(--surface);
  border-radius:9px;padding:8px 13px;min-height:40px;touch-action:manipulation}
button:disabled{opacity:.4;cursor:default}
button.ghost{background:transparent}
button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
a{color:var(--accent)}
.msg{min-height:1.5em;font-size:.92rem;color:var(--muted)}
.msg.err{color:#c4372b}

.center{min-height:100%;display:flex;align-items:center;justify-content:center;
  padding:max(16px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left))}
.brand{display:flex;align-items:center;gap:12px;font-size:1.5rem;letter-spacing:-.01em}
.brand.small{font-size:1.1rem;gap:8px}
.brand img{border-radius:22%}
.login-card{max-width:420px;width:100%;background:var(--surface);border:1px solid var(--line);border-radius:16px;
  padding:28px;display:flex;flex-direction:column;gap:16px}
.login-card p{margin:0;color:var(--muted)}
#gbtn{min-height:44px}

/* ---------- 목록 ---------- */
#list{min-height:100%;padding-bottom:max(24px,env(safe-area-inset-bottom))}
.topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:12px;background:var(--bg);
  padding:calc(10px + env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) 10px max(16px,env(safe-area-inset-left));
  border-bottom:1px solid var(--line)}
.topbar .sync{margin-left:auto}
.menu-wrap{position:relative}
.menu{position:absolute;right:0;top:calc(100% + 6px);min-width:220px;background:var(--surface);border:1px solid var(--line);
  border-radius:12px;padding:6px;display:flex;flex-direction:column;gap:2px;box-shadow:0 8px 30px rgba(0,0,0,.18)}
.menu button{border:0;text-align:left;background:transparent}
.menu-foot{font-size:.75rem;color:var(--muted);padding:6px 12px}
#hints{display:flex;flex-direction:column;gap:8px;padding:12px max(16px,env(safe-area-inset-right)) 0 max(16px,env(safe-area-inset-left))}
.hint{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:8px;
  padding:10px 14px;font-size:.9rem;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.hint.warn{border-left-color:var(--warn)}
.hint button{min-height:32px;padding:4px 10px}
.weeks{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:14px;
  padding:16px max(16px,env(safe-area-inset-right)) 0 max(16px,env(safe-area-inset-left))}
.empty{color:var(--muted);padding:40px 8px;text-align:center;grid-column:1/-1}
.week{display:flex;flex-direction:column;align-items:stretch;gap:8px;text-align:left;padding:16px 18px;border-radius:14px}
.week:first-child{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.wk-date{font-size:1.08rem;font-weight:700}
.wk-title{font-size:.8rem;color:var(--muted)}
.wk-songs{margin:0;padding-left:1.3em;display:flex;flex-direction:column;gap:2px;font-size:.92rem}
.wk-songs li span{margin-right:6px}
.wk-songs i{font-style:normal;font-size:.78rem;color:var(--muted);font-variant-numeric:tabular-nums}
.wk-badges{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.pill{font-size:.74rem;font-weight:600;padding:2px 9px;border-radius:999px;background:var(--bg);color:var(--muted);white-space:nowrap}
.pill.new{background:var(--new-soft);color:var(--new)}
.pill.again{background:var(--accent-soft);color:var(--accent)}
.pill.ink{background:var(--accent);color:var(--accent-ink)}
.pill.ok{background:var(--ok-soft);color:var(--ok)}
.pill.warn{background:var(--warn-soft);color:var(--warn)}

.sync{font-size:.74rem;font-weight:600;padding:3px 10px;border-radius:999px;white-space:nowrap;background:var(--ok-soft);color:var(--ok)}
.sync::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:currentColor;margin-right:6px;vertical-align:1px}
.sync[data-state="syncing"]{background:var(--new-soft);color:var(--new)}
.sync[data-state="offline"]{background:var(--bg);color:var(--muted)}
.sync[data-state="error"],.sync[data-state="login"]{background:var(--warn-soft);color:var(--warn)}

/* ---------- 악보 보기 ---------- */
#viewer{position:fixed;inset:0;display:flex;flex-direction:column;background:var(--stage);
  -webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.vbar,.toolbar,.vfoot,.banner,.v-structure{flex:none}
.vbar{display:flex;align-items:center;gap:12px;background:var(--chrome);color:var(--chrome-ink);
  padding:calc(6px + env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) 6px max(12px,env(safe-area-inset-left))}
.vbar button{border-color:var(--chrome-line);background:transparent;color:var(--chrome-ink)}
.v-info{min-width:0;flex:1;display:flex;flex-direction:column;line-height:1.3}
.v-title{font-size:.72rem;color:var(--chrome-muted)}
.v-song{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.v-meta{font-size:.78rem;color:var(--chrome-muted);font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.keychg{color:#ffb27f;font-weight:700}
.v-right{display:flex;align-items:center;gap:10px}
.v-pos{font-size:.8rem;color:var(--chrome-muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.seg{display:flex;border:1px solid var(--chrome-line);border-radius:10px;overflow:hidden}
.seg button{border:0;border-radius:0;min-height:38px;padding:6px 12px}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink);font-weight:700}

.toolbar{display:none;flex-wrap:wrap;gap:8px 14px;align-items:center;background:var(--surface);border-bottom:1px solid var(--line);
  padding:6px max(12px,env(safe-area-inset-right)) 6px max(12px,env(safe-area-inset-left))}
#viewer[data-view="edit"] .toolbar{display:flex}
.grp{display:flex;gap:4px;align-items:center}
.toolbar button{min-height:40px;padding:6px 11px}
.toolbar button[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:700}
.sw{width:40px;padding:0!important;position:relative}
.sw::after{content:"";position:absolute;inset:9px;border-radius:50%;background:var(--c);box-shadow:0 0 0 1.5px var(--muted)}
.sw.hl::after{border-radius:4px;inset:12px 7px;opacity:.75}
.widths button{width:44px;padding:0!important;display:flex;align-items:center;justify-content:center}
.widths i{display:block;width:22px;height:var(--s);border-radius:9px;background:var(--ink)}
.stamps{flex-basis:100%;display:flex;flex-wrap:wrap;gap:4px}
.stamps button{min-width:46px;font-weight:700}

.banner{display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:var(--warn-soft);color:var(--warn);
  padding:8px max(12px,env(safe-area-inset-right)) 8px max(12px,env(safe-area-inset-left));font-size:.9rem}
.banner .what{flex:1;min-width:220px}
.banner button{min-height:34px;padding:4px 10px}

.stage{flex:1;min-height:0;overflow:auto;touch-action:none;position:relative;scrollbar-width:thin}
.spread{min-width:100%;min-height:100%;display:flex;align-items:center;justify-content:center;gap:12px;padding:10px;width:max-content;margin:0 auto}
.spread.zoomed{align-items:flex-start}
#viewer[data-view="clean"] .spread{padding:0}
.v-loading{color:var(--muted)}
.page{position:relative;flex:none;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.25);overflow:hidden}
.page .sheet-c{display:block;width:100%;height:100%}
.page .ink,.page .live{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.page .ink text{font-family:var(--font);font-weight:700}
.page .ink .hl{fill-opacity:.38;mix-blend-mode:multiply}
.msgpage{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  color:#555;padding:24px;text-align:center}
.msgpage b{font-size:1.2rem;color:#222}
#viewer[data-view="edit"] .stage{cursor:crosshair}
#viewer[data-view="edit"] .stage[data-tool="eraser"]{cursor:cell}
#viewer[data-view="edit"] .stage[data-tool="text"],#viewer[data-view="edit"] .stage[data-tool="stamp"]{cursor:text}
.text-input{position:absolute;z-index:3;min-width:120px;border:2px solid var(--new);border-radius:4px;padding:0 4px;
  background:rgba(255,255,255,.95);color:#1f5fd6;font-family:var(--font);font-weight:700;line-height:1.2;-webkit-user-select:text;user-select:text}

.v-structure{font-size:.8rem;color:var(--muted);background:var(--surface);border-top:1px solid var(--line);
  padding:4px max(12px,env(safe-area-inset-right)) 4px max(12px,env(safe-area-inset-left));white-space:nowrap;overflow-x:auto}
.v-structure:empty{display:none}
.vfoot{display:flex;align-items:center;gap:8px;background:var(--surface);border-top:1px solid var(--line);
  padding:6px max(10px,env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left))}
.vfoot > button{font-size:1.4rem;width:48px;padding:0}
.songnav{flex:1;min-width:0;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
.songnav button{white-space:nowrap;min-height:36px;padding:4px 12px;font-size:.88rem}
.songnav button i{font-style:normal;color:var(--muted);margin-left:6px;font-size:.78rem}
.songnav button.on{border-color:var(--accent);color:var(--accent);font-weight:700}

#viewer.chrome-off .vbar,#viewer.chrome-off .vfoot,#viewer.chrome-off .v-structure{display:none}
#viewer[data-view="clean"]{background:#0b0c0e}
#viewer[data-view="clean"] .vbar,#viewer[data-view="clean"] .vfoot,#viewer[data-view="clean"] .banner,
#viewer[data-view="clean"] .v-structure{display:none}
.v-exit{display:none;position:fixed;z-index:6;top:calc(12px + env(safe-area-inset-top));right:calc(12px + env(safe-area-inset-right));
  background:rgba(20,24,30,.85);color:#fff;border-color:transparent}
#viewer[data-view="clean"].show-exit .v-exit{display:block}

#toast{position:fixed;z-index:20;left:50%;transform:translateX(-50%);bottom:calc(76px + env(safe-area-inset-bottom));
  background:#1d2733;color:#fff;border-radius:12px;padding:10px 14px;display:flex;gap:12px;align-items:center;
  max-width:calc(100% - 32px);box-shadow:0 8px 30px rgba(0,0,0,.3);font-size:.92rem}
#toast button{background:var(--accent);color:var(--accent-ink);border:0;min-height:34px;padding:4px 12px;font-weight:700}

@media (max-width:700px){
  .v-pos{display:none}
  .seg button{padding:6px 9px}
  .vbar{gap:8px}
}
@media (prefers-reduced-motion: reduce){*{scroll-behavior:auto!important}}