/* Apple / macOS system UI house style */
:root{
  --bg:#ececee;
  --bg-tint:#e6e6ea;
  --surface:#ffffff;
  --surface-soft:#f5f5f7;
  --surface-hover:#f0f0f2;
  --surface-sunk:#eaeaee;

  --border:#d5d5d9;
  --border-soft:#e3e3e6;
  --border-strong:#b4b4ba;
  --separator:rgba(60,60,67,0.12);

  --shadow-sm:0 1px 2px rgba(0,0,0,0.05);
  --shadow-card:0 1px 2px rgba(0,0,0,0.04),0 4px 12px rgba(0,0,0,0.05);
  --shadow-lift:0 6px 20px rgba(0,122,255,0.14),0 2px 6px rgba(0,0,0,0.06);

  --text:#1d1d1f;
  --text-mute:#6e6e73;
  --text-soft:#86868b;

  --accent:#007aff;
  --accent-hover:#0060df;
  --accent-soft:#e8f2ff;
  --accent-border:#b3d4ff;
  --accent-fg:#ffffff;

  --good:#248a3d; --good-soft:#e6f4ea; --good-border:#b7dcc0;
  --warn:#b25000; --warn-soft:#fff4e5; --warn-border:#ffd9a8;
  --danger:#d70015; --danger-soft:#fdeaec; --danger-border:#f5c2c7;

  --radius:7px;
  --radius-lg:12px;

  --font-sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","Segoe UI",Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;

  --topbar-h:48px;
  --undo-h:52px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  font-size:13.5px;
  line-height:1.45;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* ---- topbar ---- */
.topbar{
  position:sticky;top:0;z-index:20;
  height:var(--topbar-h);
  background:rgba(236,236,238,0.86);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--border-soft);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;gap:12px;
}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:10px}
.back-to-menu{
  display:inline-flex;align-items:center;gap:4px;
  color:var(--text-mute);text-decoration:none;
  padding:4px 8px;border-radius:6px;font-size:12px;font-weight:500;
  border:1px solid var(--border-soft);background:var(--surface);
}
.back-to-menu:hover{background:var(--surface-hover);color:var(--text)}
.brand{
  border:0;background:none;cursor:pointer;padding:4px 8px;border-radius:6px;
  display:flex;align-items:center;gap:8px;color:var(--text);
}
.brand:hover{background:var(--surface-hover)}
.brand-mark{
  width:22px;height:22px;border-radius:6px;
  background:linear-gradient(135deg,#007aff,#5ac8fa);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:12px;
}
.brand-name{font-weight:600;letter-spacing:-0.005em}
.tabs{display:flex;gap:2px;margin-left:6px}
.tab{
  border:0;background:none;cursor:pointer;padding:5px 10px;border-radius:6px;
  font:inherit;font-size:12.5px;color:var(--text-mute);
}
.tab:hover{background:var(--surface-hover);color:var(--text)}
.tab.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm)}
.sync-status{color:var(--text-soft);font-size:12px;white-space:nowrap}
.sync-status.stale{color:var(--warn)}
.sync-status.error{color:var(--danger)}

/* ---- range control ---- */
.range{display:flex;align-items:center;gap:2px;background:var(--surface);border:1px solid var(--border-soft);border-radius:8px;padding:2px;box-shadow:var(--shadow-sm)}
.range .preset{
  border:0;background:none;cursor:pointer;font:inherit;font-size:12px;
  color:var(--text-mute);padding:4px 9px;border-radius:6px;
}
.range .preset:hover{color:var(--text)}
.range .preset.active{background:var(--accent);color:#fff}
.range .custom-btn{display:inline-flex;align-items:center;gap:4px}
.custom-panel{
  background:var(--surface);border:1px solid var(--border);border-radius:10px;
  box-shadow:var(--shadow-card);padding:12px;z-index:60;
  display:flex;gap:10px;align-items:flex-end;
}
.custom-panel label{font-size:11px;color:var(--text-mute);display:block;margin-bottom:3px;letter-spacing:0.02em;text-transform:uppercase}
.custom-panel input{
  border:1px solid var(--border);border-radius:6px;padding:6px 8px;font:inherit;font-size:12.5px;
  min-width:140px;background:var(--surface);
}
.custom-panel input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}

/* ---- buttons ---- */
.btn{
  border:1px solid var(--border);background:var(--surface);color:var(--text);
  padding:5px 10px;border-radius:6px;font:inherit;font-size:12.5px;cursor:pointer;
  display:inline-flex;align-items:center;gap:6px;
}
.btn:hover{background:var(--surface-hover)}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.btn.ghost{background:transparent}
.btn.ghost:hover{background:var(--surface-hover)}
.btn.small{padding:3px 8px;font-size:12px}
.btn.danger{color:var(--danger);border-color:var(--danger-border)}
.btn.danger:hover{background:var(--danger-soft)}
.btn:disabled{opacity:0.55;cursor:not-allowed}
.btn.link{border:0;background:none;color:var(--accent);padding:0;font-size:12px}
.btn.link:hover{text-decoration:underline}

/* ---- app shell ---- */
.app{max-width:1280px;margin:0 auto;padding:20px 20px 100px}

/* ---- overview ---- */
.overview-header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:16px;gap:16px;flex-wrap:wrap}
.overview-total{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  padding:14px 18px;box-shadow:var(--shadow-sm);
}
.overview-total-label{color:var(--text-mute);font-size:11.5px;text-transform:uppercase;letter-spacing:0.04em}
.overview-total-value{font-size:22px;font-weight:600;letter-spacing:-0.01em;font-variant-numeric:tabular-nums}
.company-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.company-card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  padding:14px 16px;cursor:pointer;box-shadow:var(--shadow-sm);
  transition:box-shadow 120ms ease, transform 120ms ease;
  text-align:left;font:inherit;color:inherit;
}
.company-card:hover{box-shadow:var(--shadow-lift);transform:translateY(-1px)}
.company-card h3{margin:0 0 4px;font-size:14px;font-weight:600}
.company-card .amt{font-size:19px;font-weight:600;letter-spacing:-0.01em;font-variant-numeric:tabular-nums;margin:6px 0 2px}
.company-card .row{color:var(--text-mute);font-size:11.5px;display:flex;justify-content:space-between;gap:6px;padding:1px 0}
.company-card .row .n{font-variant-numeric:tabular-nums;color:var(--text)}

/* ---- shared table ---- */
.data-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.data-table th,.data-table td{padding:8px 12px;border-bottom:1px solid var(--separator);vertical-align:top;text-align:left}
.data-table thead th{background:var(--surface-soft);font-size:11.5px;text-transform:uppercase;letter-spacing:0.04em;color:var(--text-mute);cursor:pointer;user-select:none;white-space:nowrap}
.data-table thead th .sort-ind{color:var(--text-soft);font-size:10px;margin-left:4px}
.data-table thead th.active{color:var(--text)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:var(--surface-hover)}
.data-table .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.data-table .mute{color:var(--text-mute);font-size:12px}
.data-table .expanded-cell{background:var(--surface-soft);padding:12px}
.txn-mini{width:100%;border-collapse:collapse}
.txn-mini td,.txn-mini th{padding:4px 8px;font-size:12px;text-align:left;border-bottom:1px solid var(--separator)}
.txn-mini .num{text-align:right;font-variant-numeric:tabular-nums}

.pill{
  display:inline-flex;align-items:center;gap:4px;
  background:var(--accent-soft);color:var(--accent);
  padding:1px 7px;border-radius:10px;font-size:11px;font-weight:500;
}
.pill.unassigned{background:var(--warn-soft);color:var(--warn)}

/* ---- back-nav strip ---- */
.back-strip{display:flex;align-items:center;gap:8px;margin-bottom:12px;color:var(--text-mute);font-size:12.5px}
.back-strip .crumb-sep{color:var(--text-soft)}
h1.page-title{font-size:22px;font-weight:600;letter-spacing:-0.01em;margin:0 0 14px}

/* ---- buckets view ---- */
.buckets-layout{display:grid;grid-template-columns:2fr 1fr;gap:16px;align-items:flex-start}
.suggestions-panel{
  background:var(--accent-soft);border:1px solid var(--accent-border);border-radius:var(--radius-lg);
  padding:12px 14px;margin-bottom:14px;
}
.suggestions-panel h3{margin:0 0 8px;font-size:13px;color:var(--accent-hover)}
.suggestion{background:var(--surface);border:1px solid var(--border-soft);border-radius:8px;padding:8px 10px;margin-top:6px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.suggestion .aliases{font-size:12px;color:var(--text-mute)}
.unassigned-panel{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);padding:14px;box-shadow:var(--shadow-sm)}
.unassigned-panel h3{margin:0 0 8px;font-size:13px}
.unassigned-search{width:100%;border:1px solid var(--border);border-radius:6px;padding:6px 8px;font:inherit;font-size:12.5px;margin-bottom:8px}
.unassigned-list{max-height:520px;overflow:auto;border:1px solid var(--border-soft);border-radius:8px;background:var(--surface-soft)}
.unassigned-item{display:flex;align-items:center;gap:8px;padding:5px 8px;font-size:12.5px;border-bottom:1px solid var(--separator);cursor:pointer}
.unassigned-item:last-child{border-bottom:0}
.unassigned-item:hover{background:var(--surface-hover)}
.unassigned-item.selected{background:var(--accent-soft);color:var(--accent-hover)}
.unassigned-actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}

/* Aliases inline editor */
.alias-chip{display:inline-flex;align-items:center;gap:4px;background:var(--surface-soft);border:1px solid var(--border-soft);border-radius:12px;padding:2px 8px;font-size:11.5px;margin:2px}
.alias-chip .x{cursor:pointer;color:var(--text-soft);border:0;background:none;padding:0 2px;font-size:12px;line-height:1}
.alias-chip .x:hover{color:var(--danger)}

.empty-state{text-align:center;padding:60px 20px;color:var(--text-mute)}

/* ---- undo bar ---- */
.undo-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:40;
  height:var(--undo-h);
  background:rgba(29,29,31,0.92);color:#fff;
  display:flex;align-items:center;gap:10px;padding:0 16px;
  box-shadow:0 -4px 12px rgba(0,0,0,0.12);
}
.undo-bar[hidden]{display:none}
.undo-msg{flex:1;font-size:12.5px}
.undo-bar .btn{background:rgba(255,255,255,0.12);color:#fff;border-color:transparent}
.undo-bar .btn:hover{background:rgba(255,255,255,0.20)}
.undo-bar .btn.ghost{background:transparent}

/* ---- toast ---- */
.toast{
  position:fixed;top:calc(var(--topbar-h) + 12px);left:50%;transform:translateX(-50%);
  z-index:50;background:var(--surface);border:1px solid var(--border);border-radius:8px;
  padding:8px 14px;box-shadow:var(--shadow-card);font-size:12.5px;
}
.toast.err{border-color:var(--danger-border);background:var(--danger-soft);color:var(--danger)}
.toast[hidden]{display:none}

@media (max-width:820px){
  .buckets-layout{grid-template-columns:1fr}
  .topbar{flex-wrap:wrap;height:auto;padding:8px 12px}
  .topbar-right{width:100%;justify-content:space-between}
}