*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
:root{
  --bg:#f7f7f3;
  --surface:#ffffff;
  --surface-2:#f0f0eb;
  --surface-hover:#e9e9e1;
  --border:#deddd2;
  --border-strong:#c7c5b7;
  --ink:#1b1c18;
  --ink-2:#57584c;
  --ink-muted:#8c8d7e;
  --accent:#0e7c66;
  --accent-strong:#0a5f4e;
  --accent-soft:#e1f1eb;
  --accent-ink:#ffffff;
  --danger:#b3392b;
  --danger-soft:#f6e2de;
  --off-bg:#fbecc8;
  --off-ink:#7a5300;
  --off-border:#e6c477;
  --shadow:0 1px 2px rgba(20,20,15,0.06), 0 8px 24px -12px rgba(20,20,15,0.22);
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:20px;
  --font-display:'Manrope',system-ui,-apple-system,sans-serif;
  --font-body:'IBM Plex Sans',system-ui,-apple-system,sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#171813;
    --surface:#1f211b;
    --surface-2:#262820;
    --surface-hover:#2c2e25;
    --border:#383a30;
    --border-strong:#4a4c40;
    --ink:#f3f2ea;
    --ink-2:#c7c6b8;
    --ink-muted:#8f9082;
    --accent:#2fb394;
    --accent-strong:#45c9a9;
    --accent-soft:rgba(47,179,148,0.16);
    --accent-ink:#06231c;
    --danger:#e2786a;
    --danger-soft:rgba(226,120,106,0.16);
    --off-bg:rgba(230,170,40,0.16);
    --off-ink:#e6b73f;
    --off-border:rgba(230,170,40,0.4);
    --shadow:0 1px 2px rgba(0,0,0,0.4), 0 12px 28px -14px rgba(0,0,0,0.65);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#171813;
  --surface:#1f211b;
  --surface-2:#262820;
  --surface-hover:#2c2e25;
  --border:#383a30;
  --border-strong:#4a4c40;
  --ink:#f3f2ea;
  --ink-2:#c7c6b8;
  --ink-muted:#8f9082;
  --accent:#2fb394;
  --accent-strong:#45c9a9;
  --accent-soft:rgba(47,179,148,0.16);
  --accent-ink:#06231c;
  --danger:#e2786a;
  --danger-soft:rgba(226,120,106,0.16);
  --off-bg:rgba(230,170,40,0.16);
  --off-ink:#e6b73f;
  --off-border:rgba(230,170,40,0.4);
  --shadow:0 1px 2px rgba(0,0,0,0.4), 0 12px 28px -14px rgba(0,0,0,0.65);
  color-scheme:dark;
}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
h1,h2,h3{font-family:var(--font-display);font-weight:800;letter-spacing:-0.01em;text-wrap:balance;margin:0;}
a{color:inherit;}
button{font-family:inherit;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.app-shell{max-width:1120px;margin:0 auto;padding:20px 20px 64px;}

/* Header */
.topbar{
  position:sticky;top:0;z-index:20;
  background:var(--bg);
  border-bottom:1px solid var(--border);
  padding:14px 0;
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  margin-bottom:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:800;font-size:19px;}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--accent);display:flex;align-items:center;justify-content:center;color:var(--accent-ink);font-size:15px;flex-shrink:0;}
.month-nav{display:flex;align-items:center;gap:6px;margin-left:4px;}
.month-label{font-family:var(--font-display);font-weight:700;font-size:16px;min-width:150px;text-align:center;}
.topbar-spacer{flex:1;}
.status-pill{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-muted);padding:5px 10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);}
.status-pill.is-saving{color:var(--accent-strong);}
.status-dot{width:6px;height:6px;border-radius:50%;background:currentColor;}
@media (prefers-reduced-motion: no-preference){
  .status-pill.is-saving .status-dot{animation:pulse 1s ease-in-out infinite;}
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.25;}}
.status-pill.is-readonly{color:var(--danger);background:var(--danger-soft);border-color:transparent;}
.user-chip{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);padding:5px 8px 5px 5px;border-radius:999px;}
.user-chip .avatar{width:26px;height:26px;font-size:11px;}
.user-name{font-weight:600;font-size:13.5px;}

/* Buttons */
.btn{
  appearance:none;border:1px solid var(--border-strong);background:var(--surface);color:var(--ink);
  font-weight:600;font-size:13.5px;padding:9px 14px;border-radius:var(--radius-sm);cursor:pointer;
  display:inline-flex;align-items:center;gap:6px;transition:background .12s ease, border-color .12s ease;
}
.btn:hover{background:var(--surface-hover);}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);}
.btn-primary:hover{background:var(--accent-strong);border-color:var(--accent-strong);}
.btn-ghost{background:transparent;border-color:transparent;color:var(--ink-2);}
.btn-ghost:hover{background:var(--surface-2);}
.btn-danger-text{background:transparent;border-color:transparent;color:var(--danger);font-size:12.5px;padding:4px 6px;}
.btn-danger-text:hover{background:var(--danger-soft);}
.btn-icon{width:34px;height:34px;padding:0;justify-content:center;border-radius:999px;}
.btn-sm{padding:6px 10px;font-size:12.5px;}
.btn-block{width:100%;justify-content:center;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* Cards & fields */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px;}
.field label{font-size:12.5px;font-weight:600;color:var(--ink-2);}
.field input{
  font-family:var(--font-body);font-size:14.5px;padding:10px 12px;border-radius:var(--radius-sm);
  border:1px solid var(--border-strong);background:var(--bg);color:var(--ink);
}
.field input:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent);}
.field-error{color:var(--danger);font-size:12.5px;font-weight:600;}
@media (prefers-reduced-motion: no-preference){
  .shake{animation:shake .32s ease;}
}
@keyframes shake{0%,100%{transform:translateX(0);}25%{transform:translateX(-6px);}75%{transform:translateX(6px);}}

/* Avatars */
.avatar{border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;flex-shrink:0;line-height:1;}

/* Login */
.login-wrap{max-width:480px;margin:8vh auto 0;padding:0 8px;}
.login-head{text-align:center;margin-bottom:28px;}
.login-head p{color:var(--ink-2);margin:8px 0 0;font-size:14.5px;}
.emp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:10px;margin-bottom:6px;}
.emp-tile{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px 10px;display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer;
  transition:border-color .12s ease, transform .12s ease;
}
.emp-tile:hover{border-color:var(--border-strong);transform:translateY(-1px);}
.emp-tile .avatar{width:42px;height:42px;font-size:16px;}
.emp-tile-name{font-size:13px;font-weight:600;text-align:center;}
.pin-card{padding:22px;}
.pin-card .avatar{width:38px;height:38px;font-size:15px;}
.pin-head{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.pin-head-name{font-weight:700;font-family:var(--font-display);}
.login-footnote{text-align:center;color:var(--ink-muted);font-size:12px;margin-top:22px;line-height:1.6;}
.add-emp-toggle{display:block;text-align:center;width:100%;margin-top:14px;color:var(--accent-strong);background:transparent;border:none;font-weight:600;font-size:13.5px;cursor:pointer;padding:8px;}
.add-emp-toggle:hover{text-decoration:underline;}

/* Main layout */
.stats-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px;}
.stat-chip{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:9px 14px;box-shadow:var(--shadow);}
.stat-chip .avatar{width:24px;height:24px;font-size:10.5px;}
.stat-text{display:flex;flex-direction:column;gap:1px;}
.stat-label{font-size:11px;color:var(--ink-muted);font-weight:600;text-transform:uppercase;letter-spacing:.03em;}
.stat-value{font-family:var(--font-mono);font-size:17px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;}
.stat-value.is-accent{color:var(--accent-strong);}
.stat-people{display:flex;gap:4px;flex-wrap:wrap;align-items:center;}
.main-grid{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start;}
@media (max-width:860px){.main-grid{grid-template-columns:1fr;}}

.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:4px;}
.section-head h2{font-size:20px;}
.section-hint{color:var(--ink-muted);font-size:12.5px;margin:2px 0 14px;}
.legend-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;padding-top:12px;border-top:1px solid var(--border);}
.legend-item{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--ink-2);}
.legend-swatch{width:12px;height:12px;border-radius:4px;flex-shrink:0;}
.legend-swatch.alert{background:var(--danger-soft);border:1px solid var(--danger);}
.legend-swatch.off{background:var(--off-bg);border:1px solid var(--off-border);}
.legend-swatch.mine{background:var(--accent-soft);border:1px solid var(--accent);}

/* Calendar */
.cal-card{padding:16px 16px 18px;}
.cal-weekdays{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin-bottom:6px;}
.cal-weekdays div{text-align:center;font-size:11.5px;font-weight:700;color:var(--ink-muted);text-transform:uppercase;letter-spacing:.04em;padding-bottom:4px;}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;}
.cal-cell{
  grid-column:span 1;border-radius:var(--radius-sm);border:1px solid var(--border);
  background:var(--surface-2);position:relative;transition:border-color .12s ease, background .12s ease;
}
.cal-cell.is-placeholder{visibility:hidden;}
.cal-cell-main{
  appearance:none;width:100%;min-height:86px;border:none;background:transparent;color:var(--ink);
  padding:6px;display:flex;flex-direction:column;gap:8px;align-items:flex-start;text-align:left;
  cursor:pointer;border-radius:inherit;
}
.cal-cell-main:hover{background:var(--surface-hover);border-radius:inherit;}
.cal-cell-main:disabled{cursor:default;}
.cal-cell.is-today{border-color:var(--accent);border-width:1.5px;}
.cal-daynum{font-family:var(--font-mono);font-size:12.5px;color:var(--ink-2);font-weight:500;}
.cal-cell.is-today .cal-daynum{color:var(--accent-strong);font-weight:700;}
.cal-cell.is-mine-marked{background:var(--accent-soft);}
.cal-cell.is-alert{background:var(--danger-soft);border-color:var(--danger);}
.cal-cell.is-alert .cal-daynum{color:var(--danger);font-weight:700;}
.cal-cell.is-off{background:var(--off-bg);border-color:var(--off-border);}
.cal-cell.is-off .cal-daynum{color:var(--off-ink);}
.cal-cell.is-sunday{background:transparent;border-style:dashed;}
.cal-cell.is-sunday .cal-daynum{color:var(--ink-muted);}
.cal-slots{display:flex;gap:4px;}
.cal-slot{width:22px;height:22px;font-size:9.5px;}
.cal-slot-empty{width:22px;height:22px;border-radius:50%;border:1.5px dashed var(--border-strong);flex-shrink:0;}
.cal-slot.is-mine{box-shadow:0 0 0 2px var(--surface), 0 0 0 3.5px var(--accent);}
.cal-off-note{font-size:10.5px;font-weight:700;color:var(--off-ink);}
.cal-sunday-note{font-size:10.5px;color:var(--ink-muted);}
.cal-off-toggle{
  position:absolute;top:5px;right:5px;width:15px;height:15px;border-radius:50%;
  border:1.5px solid var(--border-strong);background:var(--surface);padding:0;cursor:pointer;z-index:2;
}
.cal-off-toggle:hover{border-color:var(--off-ink);}
.cal-off-toggle.is-active{background:var(--off-ink);border-color:var(--off-ink);}
@media (max-width:600px){.cal-cell-main{min-height:62px;padding:4px;gap:5px;}.cal-daynum{font-size:11px;}.cal-slot,.cal-slot-empty{width:17px;height:17px;font-size:8px;}.cal-off-toggle{width:13px;height:13px;top:3px;right:3px;}}

/* Roster */
.roster-card{padding:16px;}
.roster-list{display:flex;flex-direction:column;gap:0;margin-top:8px;}
.roster-row{display:flex;flex-direction:column;gap:6px;padding:10px 4px;border-bottom:1px solid var(--border);}
.roster-row:last-child{border-bottom:none;}
.roster-top{display:flex;align-items:center;gap:10px;}
.roster-top .avatar{width:32px;height:32px;font-size:13px;flex-shrink:0;}
.roster-name-line{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-weight:600;font-size:13.5px;}
.roster-name-line .you-tag{font-size:10px;font-weight:700;color:var(--accent-strong);background:var(--accent-soft);padding:1px 6px;border-radius:999px;letter-spacing:.02em;}
.roster-name-line .admin-tag{font-size:10px;font-weight:700;color:var(--ink-2);background:var(--surface-2);border:1px solid var(--border);padding:1px 6px;border-radius:999px;letter-spacing:.02em;}
.roster-meter{height:5px;border-radius:999px;background:var(--border);overflow:hidden;margin-left:42px;}
.roster-meter-fill{height:100%;border-radius:999px;}
.roster-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-left:42px;flex-wrap:wrap;}
.roster-count{font-family:var(--font-mono);font-size:12px;color:var(--ink-muted);white-space:nowrap;}
.roster-actions{display:flex;gap:2px;align-items:center;flex-wrap:wrap;justify-content:flex-end;}
.admin-toggle-btn{background:transparent;border:none;color:var(--ink-muted);font-size:11px;padding:4px 6px;cursor:pointer;border-radius:var(--radius-sm);white-space:nowrap;}
.admin-toggle-btn:hover{background:var(--surface-2);}
.admin-toggle-btn.is-active{color:var(--accent-strong);font-weight:700;}
.add-emp-panel{margin-top:12px;padding-top:12px;border-top:1px solid var(--border);}
.inline-form-actions{display:flex;gap:8px;margin-top:4px;}
.empty-note{color:var(--ink-muted);font-size:13px;padding:8px 4px;}
footer.app-foot{text-align:center;color:var(--ink-muted);font-size:11.5px;margin-top:40px;line-height:1.7;}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:999px;font-size:13px;font-weight:600;box-shadow:var(--shadow);z-index:50;max-width:90vw;text-align:center;}