/* shared app internals */
.app-pad { padding:16px; font-size:14px; }
.app-side { display:flex; height:100%; }
.app-side .side { width:170px; flex:0 0 auto; border-right:1px solid var(--border); overflow:auto; padding:8px; background:rgba(120,120,128,.07); }
.app-side .main { flex:1; overflow:auto; display:flex; flex-direction:column; }
.side .sitem { padding:7px 10px; border-radius:7px; font-size:13px; cursor:pointer; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.side .sitem.sel { background:var(--accent); color:#fff; }
.tool-btn { border:1px solid var(--border); background:var(--glass); border-radius:7px; padding:5px 12px; font-size:12.5px; color:var(--text); }
.tool-btn:hover { background:var(--accent); color:#fff; border-color:transparent; }

/* calculator */
.calc { display:flex; flex-direction:column; height:100%; background:#1c1c1e; }
.calc .cdisp { flex:0 0 84px; display:flex; align-items:flex-end; justify-content:flex-end; padding:10px 18px; font-size:44px; font-weight:300; color:#fff; overflow:hidden; }
.calc .cgrid { flex:1; display:grid; grid-template-columns:repeat(4,1fr); gap:8px; padding:10px; }
.calc button { border:none; border-radius:50px; font-size:20px; color:#fff; background:#505054; }
.calc button.op { background:#ff9f0a; } .calc button.fn { background:#a5a5a5; color:#000; } .calc button.zero { grid-column:span 2; }
.calc button:active { filter:brightness(1.4); }

/* notes */
.notes textarea { flex:1; border:none; outline:none; resize:none; background:transparent; padding:16px; font-size:14.5px; line-height:1.55; }
.notes .ntools { padding:8px; border-bottom:1px solid var(--border); display:flex; gap:8px; }

/* finder */
.finder .fgrid { display:grid; grid-template-columns:repeat(auto-fill,minmax(88px,1fr)); gap:6px; padding:14px; }
.finder .fitem { display:flex; flex-direction:column; align-items:center; gap:5px; padding:10px 4px; border-radius:9px; cursor:pointer; font-size:12px; text-align:center; word-break:break-word; }
.finder .fitem:hover { background:rgba(120,120,128,.15); }
.finder .fitem .fic { font-size:34px; }
.finder .fbar { padding:8px 12px; border-bottom:1px solid var(--border); display:flex; gap:8px; align-items:center; font-size:12.5px; color:var(--text-dim); }

/* terminal */
.term { background:rgba(12,12,14,.92); color:#3fe063; font-family:'Cascadia Mono',Consolas,monospace; font-size:13px; padding:12px; height:100%; overflow:auto; cursor:text; }
.term .tline { white-space:pre-wrap; word-break:break-all; line-height:1.45; }
.term .tin { display:flex; }
.term input { flex:1; background:transparent; border:none; outline:none; color:#3fe063; font:inherit; }

/* settings */
.settings .srow { display:flex; align-items:center; justify-content:space-between; padding:13px 4px; border-bottom:1px solid var(--border); }
.settings .swatches { display:flex; gap:8px; }
.settings .sw { width:26px; height:26px; border-radius:50%; cursor:pointer; border:2px solid transparent; }
.settings .sw.sel { border-color:var(--text); }
.settings select { padding:5px 9px; border-radius:7px; border:1px solid var(--border); background:var(--glass-strong); }

/* about */
.about { display:flex; flex-direction:column; align-items:center; justify-content:center; height:100%; gap:8px; text-align:center; perspective:600px; }
.about .klogo3d { font-size:74px; font-weight:800; background:linear-gradient(135deg,var(--accent),#bf5af2); -webkit-background-clip:text; background-clip:text; color:transparent; transition:transform .1s; }
.about .ver { color:var(--text-dim); font-size:13px; }

/* browser */
.brw { display:flex; flex-direction:column; height:100%; }
.brw .baddr { display:flex; gap:8px; padding:8px; border-bottom:1px solid var(--border); }
.brw input { flex:1; border:1px solid var(--border); border-radius:8px; padding:6px 12px; background:var(--glass); outline:none; font-size:13px; }
.brw iframe { flex:1; border:none; background:#fff; }

/* music */
.music { display:flex; flex-direction:column; align-items:center; justify-content:center; height:100%; gap:16px; }
.music .disc { width:110px; height:110px; border-radius:50%; background:conic-gradient(from 0deg,#0a84ff,#bf5af2,#ff375f,#0a84ff); display:flex; align-items:center; justify-content:center; font-size:36px; box-shadow:0 10px 30px rgba(0,0,0,.3); }
.music.playing .disc { animation:spin 3s linear infinite; }
@keyframes spin { to{transform:rotate(360deg)} }
.music .mrow { display:flex; gap:10px; align-items:center; }