:root{
  --paper:#eef1f4; --surface:#fff; --surface-2:#f5f7f9; --ink:#101820;
  --muted:#5c6b7a; --faint:#8996a3; --line:#d5dbe1; --line-strong:#c2cad2;
  --accent:#0e7c8b; --accent-2:#0a6270; --on-accent:#fff;
  --closed:#c0453b; --closed-bg:#f7e4e2; --ok:#2f7a57;
  --warn:#b06f22; --warn-bg:#f6ebda; --today-bg:#e0eef1;
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#0b1015; --surface:#141b22; --surface-2:#0f161d; --ink:#e6edf3;
    --muted:#94a3b1; --faint:#6b7b8a; --line:#26313b; --line-strong:#32404c;
    --accent:#2bb6c9; --accent-2:#54cdde; --on-accent:#04222a;
    --closed:#e2726a; --closed-bg:#33211f; --ok:#5cc08c;
    --warn:#d99f52; --warn-bg:#2a2216; --today-bg:#16303a;
  }
}
*{box-sizing:border-box}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font:16px/1.5 "IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
}
.mono{font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.hidden{display:none !important}
h1{font-size:1.5rem;margin:0 0 4px}

.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;border-bottom:1px solid var(--line);background:var(--surface);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:600}
.brand small{color:var(--muted);font-weight:500}
.dot{width:11px;height:11px;border-radius:50%;background:var(--accent)}
.whoami{display:flex;align-items:center;gap:12px;font-size:14px}

main{max-width:920px;margin:0 auto;padding:28px 24px}

.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:0 8px 28px rgba(16,24,32,.06)}
.login{max-width:440px;margin:40px auto}
.login form{display:flex;flex-direction:column;gap:12px;margin-top:16px}
input,select{
  font:inherit;padding:10px 12px;border:1px solid var(--line-strong);
  border-radius:9px;background:var(--surface-2);color:var(--ink);
}
input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}

.btn{font:inherit;font-weight:600;font-size:14px;border-radius:9px;padding:9px 15px;cursor:pointer;border:1px solid transparent}
.btn.primary{background:var(--accent);color:var(--on-accent)}
.btn.primary:hover{background:var(--accent-2)}
.btn.ghost{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}
.btn.ghost:hover{border-color:var(--accent)}

.week-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.weeknav{display:flex;align-items:center;gap:8px;color:var(--muted)}
.weeknav .btn{width:34px;height:34px;padding:0}

.grid-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
table.grid{border-collapse:collapse;width:100%;min-width:640px;font-size:14px}
table.grid th,table.grid td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:center}
table.grid thead th{background:var(--surface-2);color:var(--muted);font-family:"IBM Plex Mono",monospace;font-size:11px;text-transform:uppercase;letter-spacing:.03em}
table.grid th.proj,table.grid td.proj{text-align:left;position:sticky;left:0;background:var(--surface);min-width:220px}
table.grid thead th.proj{background:var(--surface-2)}
td.proj .code{font-family:"IBM Plex Mono",monospace;color:var(--muted);margin-right:8px}
th.we,td.we{color:var(--faint)}
tr.total td{border-top:2px solid var(--line-strong);font-weight:700;font-family:"IBM Plex Mono",monospace}
tr.total td.proj{font-family:"IBM Plex Sans"}
.cell{width:54px;text-align:center;padding:6px;background:transparent;border:1px solid transparent;border-radius:6px}
.cell:hover{border-color:var(--line)}
.cell:focus{background:var(--surface-2)}
.rm{border:none;background:none;color:var(--faint);cursor:pointer;font-size:15px}
.rm:hover{color:var(--closed)}

.week-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:16px}
.total{font-size:15px}
.total b{font-size:1.15rem}

.error{color:var(--closed);margin-top:12px}

/* current-day column highlight (TR-33) */
table.grid th.today, table.grid td.today{background:var(--today-bg)}
table.grid thead th.today{box-shadow:inset 0 -2px 0 var(--accent)}

/* inconsistency flags (TR-32): >8h day total, >40h week total */
tr.total td.over, #week-total-val.over, .mday-total b.over{
  color:var(--warn); background:var(--warn-bg); border-radius:6px; padding:0 6px;
}
#week-total-val.over{outline:1px solid var(--warn)}

.week-foot{align-items:center}
#add-project{max-width:340px}

/* ── mobile day view (TR-31) ── */
.daychips{display:flex;gap:6px;overflow-x:auto;padding-bottom:8px;margin-bottom:14px}
.chip{
  flex:1 0 auto;min-width:44px;display:flex;flex-direction:column;align-items:center;gap:2px;
  font:inherit;font-size:12px;font-weight:600;color:var(--muted);background:var(--surface);
  border:1px solid var(--line-strong);border-radius:10px;padding:8px 6px;cursor:pointer;
}
.chip span{font-family:"IBM Plex Mono",monospace;font-size:15px;color:var(--ink)}
.chip.sel{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 14%,var(--surface))}
.chip.today span{color:var(--accent)}
.mcards{display:flex;flex-direction:column;gap:10px}
.mcard{
  display:flex;align-items:center;gap:12px;background:var(--surface);
  border:1px solid var(--line);border-radius:12px;padding:12px 14px;
}
.minfo{flex:1;min-width:0;font-size:15px}
.minfo .code{font-family:"IBM Plex Mono",monospace;color:var(--muted);margin-right:8px}
.mcell{width:76px;height:46px;text-align:center;font-size:18px;border:1px solid var(--line-strong);
  border-radius:9px;background:var(--surface-2);color:var(--ink)}
.mcard .rm{flex:none}
.mday-total{margin-top:16px;font-family:"IBM Plex Mono",monospace;font-size:15px}
.mday-total b{font-size:1.15rem}

@media (max-width:719px){
  main{padding:18px 14px}
  .week-head{flex-direction:column;align-items:flex-start;gap:10px}
  .week-foot{flex-direction:column;align-items:stretch;gap:12px}
  #add-project{max-width:none}
}

/* ── nav (admin) ── */
.topbar{gap:16px}
.nav{display:flex;gap:4px;flex:1}
.navbtn{
  font:inherit;font-size:13.5px;font-weight:600;color:var(--muted);background:none;
  border:1px solid transparent;border-radius:8px;padding:7px 12px;cursor:pointer;
}
.navbtn:hover{color:var(--ink);background:var(--surface-2)}
.navbtn.active{color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent)}

/* ── admin pages ── */
.page h1{margin-bottom:18px}
.admin-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;
}
.admin-bar strong{font-size:13px;color:var(--muted);margin-right:4px}
.admin-bar label{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.inp{
  font:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--line-strong);
  border-radius:8px;background:var(--surface-2);color:var(--ink);width:110px;
}
.inp.grow{flex:1;min-width:160px;width:auto}
.inp[type=number]{width:90px}

.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
table.atable{border-collapse:collapse;width:100%;min-width:560px;font-size:14px}
table.atable th,table.atable td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left}
table.atable thead th{background:var(--surface-2);color:var(--muted);font-family:"IBM Plex Mono",monospace;font-size:11px;text-transform:uppercase;letter-spacing:.03em}
table.atable td.r,table.atable th.r{text-align:right;font-variant-numeric:tabular-nums}
table.atable tr.rowbad td{background:var(--closed-bg)}
.warn-cell{color:var(--warn);font-weight:700}

.pill-btn{font:inherit;font-size:12px;font-weight:600;font-family:"IBM Plex Mono",monospace;
  padding:4px 12px;border-radius:999px;cursor:pointer;border:1px solid transparent}
.pill-btn.open{color:var(--ok);background:var(--ok-bg);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}
.pill-btn.closed{color:var(--closed);background:var(--closed-bg);border-color:color-mix(in srgb,var(--closed) 30%,transparent)}

.badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.badge{font-size:13px;font-family:"IBM Plex Mono",monospace;padding:6px 12px;border-radius:8px;
  background:var(--surface-2);border:1px solid var(--line);color:var(--muted)}
.badge.ok{color:var(--ok);background:var(--ok-bg);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}
.badge.bad{color:var(--closed);background:var(--closed-bg);border-color:color-mix(in srgb,var(--closed) 30%,transparent)}

.msg{margin-top:12px;font-size:14px}
.msg.ok{color:var(--ok)}
.msg.error{color:var(--closed)}
.msg.warn{color:var(--warn)}
button.btn[disabled]{opacity:.45;cursor:not-allowed}

@media (max-width:719px){
  .topbar{flex-wrap:wrap}
  .nav{order:3;flex-basis:100%;overflow-x:auto}
}

/* monthly summary footer (TR-36) */
.month-summary{font-size:14px;color:var(--muted)}
.month-summary b{color:var(--ink);font-weight:700}
.month-summary .over{color:var(--warn);background:var(--warn-bg);border-radius:6px;padding:1px 8px;font-weight:700}
.month-summary .ok-text{color:var(--ok);font-weight:700}

/* range selection (TR-37) */
table.grid td.selcell{background:color-mix(in srgb,var(--accent) 20%,var(--surface))}
table.grid td.selcell.today{background:color-mix(in srgb,var(--accent) 28%,var(--surface))}
table.grid td.selcell input.cell{background:transparent}

/* weekends are read-only (TR-38) */
table.grid td.noedit{color:var(--faint);font-variant-numeric:tabular-nums}
.mcell:disabled{opacity:.5;cursor:not-allowed}
.wknd-note{margin:0 0 12px}