:root {
  --bg:       #0F1117;
  --surface:  #171B26;
  --surface2: #1E2333;
  --surface3: #252B3D;
  --border:   rgba(255,255,255,.08);
  --border2:  rgba(255,255,255,.14);
  --ink:      #E8EAF2;
  --ink2:     #9EA3B8;
  --ink3:     #636880;
  --ink4:     #3D4257;
  --accent:   #4F7EFF;
  --accent2:  rgba(79,126,255,.15);
  --accent3:  #7BA3FF;
  --green:    #34D399;
  --green2:   rgba(52,211,153,.15);
  --amber:    #FBBF24;
  --amber2:   rgba(251,191,36,.15);
  --red:      #F87171;
  --red2:     rgba(248,113,113,.15);
  --purple:   #A78BFA;
  --purple2:  rgba(167,139,250,.15);
  --teal:     #22D3EE;
  --teal2:    rgba(34,211,238,.15);
  --orange:   #FB923C;
  --orange2:  rgba(251,146,60,.15);
  --font:     'Epilogue', sans-serif;
  --head:     'Syne', sans-serif;
  --mono:     'JetBrains Mono', monospace;
  --r:        8px;
  --r-lg:     12px;
  --r-xl:     16px;
}
*,*::before,*::after { box-sizing: border-box; margin:0; padding:0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  font-size: 13px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ═══ SHELL ═══ */
.shell { display: flex; min-height: 100vh; }

/* ═══ SIDEBAR ═══ */
.sidebar {
  width: 224px; flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sb-logo { padding: 20px 18px 16px; border-bottom: 1px solid var(--border); }
.sb-logo-name { font-family: var(--head); font-size: 15px; font-weight: 700; color: var(--ink); letter-spacing: -.3px; }
.sb-logo-mod  { font-size: 11px; color: var(--ink3); margin-top: 2px; }
.sb-grp { padding: 14px 16px 4px; font-size: 9.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--ink4); }
.sb-item {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 12px 7px 16px; margin: 1px 6px;
  border-radius: 6px; cursor: pointer;
  color: var(--ink3); font-size: 12.5px; font-weight: 400;
  transition: all .12s; user-select: none;
}
.sb-item:hover { background: var(--surface2); color: var(--ink2); }
.sb-item.active { background: var(--accent2); color: var(--accent3); font-weight: 500; }
.sb-ic { font-size: 13px; width: 15px; text-align: center; flex-shrink: 0; }
.sb-badge {
  margin-left: auto; background: var(--red); color: #fff;
  font-size: 9px; font-weight: 700; padding: 1px 5px; border-radius: 10px;
}
.sb-ok { margin-left: auto; width: 14px; height: 14px; border-radius: 50%; background: var(--green); display: flex; align-items: center; justify-content: center; font-size: 9px; color: #000; }
.sb-warn { margin-left: auto; width: 14px; height: 14px; border-radius: 50%; background: var(--amber); display: flex; align-items: center; justify-content: center; font-size: 9px; color: #000; }

/* ═══ MAIN ═══ */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

/* TOPBAR */
.topbar {
  height: 54px; background: var(--surface); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 24px; gap: 12px; flex-shrink: 0;
}
.topbar-title { font-family: var(--head); font-size: 16px; font-weight: 600; color: var(--ink); letter-spacing: -.2px; }
.topbar-period {
  background: var(--surface2); border: 1px solid var(--border2);
  border-radius: 6px; padding: 4px 12px; font-size: 12px; color: var(--accent3); font-weight: 500;
  display: flex; align-items: center; gap: 6px;
}
.topbar-actions { margin-left: auto; display: flex; gap: 8px; }

/* SUB-NAV TABS */
.subnav {
  display: flex; background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0 24px; gap: 0; flex-shrink: 0; overflow-x: auto;
}
.subnav::-webkit-scrollbar { height: 0; }
.snav-tab {
  display: flex; align-items: center; gap: 6px;
  padding: 11px 16px; font-size: 12.5px; font-weight: 500; color: var(--ink3);
  cursor: pointer; border-bottom: 2px solid transparent;
  transition: all .12s; user-select: none; white-space: nowrap;
}
.snav-tab:hover { color: var(--ink2); }
.snav-tab.active { color: var(--accent3); border-bottom-color: var(--accent); }
.snav-dot {
  width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
}

/* ═══ CONTENT ═══ */
.content { flex: 1; overflow-y: auto; padding: 22px 24px 60px; }
.content::-webkit-scrollbar { width: 4px; }
.content::-webkit-scrollbar-thumb { background: var(--surface3); border-radius: 2px; }

/* VIEWS */
.view { display: none; }
.view.active { display: block; }

/* ═══ BUTTONS ═══ */
.btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 7px 14px; border-radius: var(--r);
  font-family: var(--font); font-size: 12.5px; font-weight: 500;
  cursor: pointer; border: none; transition: all .13s; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #3B6AEE; }
.btn-secondary { background: var(--surface2); color: var(--ink); border: 1px solid var(--border2); }
.btn-secondary:hover { background: var(--surface3); }
.btn-ghost { background: transparent; color: var(--ink2); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--surface2); }
.btn-success { background: var(--green); color: #000; font-weight: 600; }
.btn-success:hover { background: #28C587; }
.btn-danger { background: var(--red2); color: var(--red); border: 1px solid rgba(248,113,113,.3); }
.btn-danger:hover { background: rgba(248,113,113,.25); }
.btn-amber { background: var(--amber2); color: var(--amber); border: 1px solid rgba(251,191,36,.3); }
.btn-sm { padding: 5px 11px; font-size: 12px; }
.btn-xs { padding: 3px 8px; font-size: 11px; }

.icon-btn {
  width: 30px; height: 30px; border-radius: 7px;
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--ink3); cursor: pointer; display: inline-flex;
  align-items: center; justify-content: center; font-size: 14px; transition: all .1s;
}
.icon-btn:hover { background: var(--surface3); color: var(--ink); border-color: var(--border2); }

/* ═══ BADGES ═══ */
.badge {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 500; white-space: nowrap;
}
.b-green  { background: var(--green2);  color: var(--green); }
.b-amber  { background: var(--amber2);  color: var(--amber); }
.b-red    { background: var(--red2);    color: var(--red); }
.b-accent { background: var(--accent2); color: var(--accent3); }
.b-purple { background: var(--purple2); color: var(--purple); }
.b-teal   { background: var(--teal2);   color: var(--teal); }
.b-orange { background: var(--orange2); color: var(--orange); }
.b-gray   { background: var(--surface3); color: var(--ink2); }

/* ═══ CARD ═══ */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-xl); overflow: hidden;
}
.card-header {
  padding: 13px 18px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--surface2);
}
.card-title { font-family: var(--head); font-size: 13px; font-weight: 600; color: var(--ink); }
.card-sub   { font-size: 11.5px; color: var(--ink3); margin-top: 1px; }
.card-body  { padding: 18px; }

/* ═══ STAT CARDS ═══ */
.stat-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 12px; margin-bottom: 20px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 14px 16px;
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
}
.sc-green::before  { background: var(--green); }
.sc-amber::before  { background: var(--amber); }
.sc-red::before    { background: var(--red); }
.sc-accent::before { background: var(--accent); }
.sc-purple::before { background: var(--purple); }
.sc-teal::before   { background: var(--teal); }
.sc-orange::before { background: var(--orange); }
.stat-lbl { font-size: 11px; color: var(--ink3); font-weight: 500; letter-spacing: .03em; }
.stat-val { font-family: var(--head); font-size: 24px; font-weight: 700; color: var(--ink); margin-top: 4px; letter-spacing: -.5px; }
.stat-sub { font-size: 11px; color: var(--ink3); margin-top: 3px; }
.stat-delta { display: inline-flex; align-items: center; gap: 3px; font-size: 11px; margin-top: 3px; }
.delta-up   { color: var(--red); }
.delta-down { color: var(--green); }
.delta-ok   { color: var(--green); }

/* ═══ TABLE ═══ */
.tbl-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-xl); overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--surface2); padding: 10px 14px;
  text-align: left; font-size: 11px; font-weight: 600; color: var(--ink3);
  letter-spacing: .05em; text-transform: uppercase; border-bottom: 1px solid var(--border); white-space: nowrap;
}
thead th:first-child { padding-left: 18px; }
tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--surface2); }
td { padding: 11px 14px; vertical-align: middle; font-size: 13px; color: var(--ink); }
td:first-child { padding-left: 18px; }

.emp-cell { display: flex; align-items: center; gap: 9px; }
.emp-av {
  width: 30px; height: 30px; border-radius: 8px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; font-family: var(--head);
}
.emp-name { font-weight: 500; color: var(--ink); font-size: 13px; }
.emp-dept { font-size: 11px; color: var(--ink3); }

.mono { font-family: var(--mono); font-size: 12px; }
.num-good { color: var(--green); font-weight: 600; }
.num-warn { color: var(--amber); font-weight: 600; }
.num-bad  { color: var(--red);   font-weight: 600; }
.num-mute { color: var(--ink3); }

.day-chip {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 22px; border-radius: 5px; font-size: 11px; font-weight: 600;
  font-family: var(--mono);
}
.dc-present { background: var(--green2);  color: var(--green); }
.dc-absent  { background: var(--red2);    color: var(--red); }
.dc-half    { background: var(--amber2);  color: var(--amber); }
.dc-leave   { background: var(--purple2); color: var(--purple); }
.dc-holiday { background: var(--teal2);   color: var(--teal); }
.dc-woff    { background: var(--surface3); color: var(--ink3); }
.dc-late    { background: var(--orange2); color: var(--orange); }

/* mini progress bar */
.mini-bar { height: 4px; background: var(--surface3); border-radius: 2px; overflow: hidden; width: 80px; }
.mini-fill { height: 100%; border-radius: 2px; }

/* Exception badge */
.exc-row { background: rgba(248,113,113,.04) !important; }

/* row action */
.row-act { display: flex; gap: 4px; opacity: 0; transition: opacity .12s; }
tbody tr:hover .row-act { opacity: 1; }

/* ═══ FORM CONTROLS ═══ */
.fld {
  height: 33px; padding: 0 10px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--r); color: var(--ink); font-family: var(--font); font-size: 13px;
  outline: none; transition: border-color .15s, box-shadow .15s; width: 100%;
}
.fld:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent2); }
.fld::placeholder { color: var(--ink4); }
select.fld {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23636880' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center; padding-right: 26px; cursor: pointer;
}
textarea.fld { height: auto; padding: 8px 10px; resize: vertical; }

.fld-label { font-size: 11.5px; font-weight: 500; color: var(--ink2); margin-bottom: 4px; display: block; }
.fld-hint  { font-size: 11px; color: var(--ink3); margin-top: 3px; }

.form-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.form-grp { display: flex; flex-direction: column; flex: 1; min-width: 120px; }
.form-grp.w160 { flex: 0 0 160px; }
.form-grp.w200 { flex: 0 0 200px; }
.form-grp.w120 { flex: 0 0 120px; }
.form-grp.full { flex: 1 1 100%; }

/* Mini toggle */
.tog { position: relative; width: 34px; height: 18px; display: inline-block; cursor: pointer; flex-shrink: 0; }
.tog input { opacity: 0; width: 0; height: 0; position: absolute; }
.tog-track { position: absolute; inset: 0; background: var(--surface3); border-radius: 9px; transition: background .2s; border: 1px solid var(--border); }
.tog input:checked + .tog-track { background: var(--accent); border-color: var(--accent); }
.tog-thumb { position: absolute; top: 2px; left: 2px; width: 12px; height: 12px; background: #fff; border-radius: 50%; box-shadow: 0 1px 2px rgba(0,0,0,.3); transition: transform .2s; }
.tog input:checked ~ .tog-thumb { transform: translateX(16px); }

/* Toggle row */
.tog-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.tog-row:last-child { border-bottom: none; }
.tog-label { font-size: 13px; color: var(--ink); }
.tog-hint  { font-size: 11px; color: var(--ink3); margin-top: 1px; }

/* Radio group */
.radio-grp { display: flex; gap: 10px; flex-wrap: wrap; }
.radio-opt {
  display: flex; align-items: center; gap: 7px;
  padding: 7px 12px; border: 1px solid var(--border);
  border-radius: var(--r); cursor: pointer; transition: all .12s;
  font-size: 12.5px; color: var(--ink2); background: var(--surface2);
}
.radio-opt.sel { border-color: var(--accent); background: var(--accent2); color: var(--accent3); }
.radio-opt input { accent-color: var(--accent); }

/* Callout */
.callout {
  display: flex; gap: 9px; padding: 10px 14px; border-radius: var(--r);
  font-size: 12.5px; line-height: 1.5; margin-bottom: 16px; align-items: flex-start;
}
.c-info   { background: var(--accent2); color: var(--accent3); border-left: 3px solid var(--accent); }
.c-warn   { background: var(--amber2);  color: var(--amber);   border-left: 3px solid var(--amber); }
.c-danger { background: var(--red2);    color: var(--red);     border-left: 3px solid var(--red); }
.c-ok     { background: var(--green2);  color: var(--green);   border-left: 3px solid var(--green); }

/* Slab table */
.slab-table { width: 100%; border-collapse: collapse; }
.slab-table th { background: var(--surface2); padding: 7px 12px; font-size: 11px; font-weight: 600; color: var(--ink3); text-align: left; border-bottom: 1px solid var(--border); letter-spacing: .04em; }
.slab-table td { padding: 7px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.slab-table tr:last-child td { border-bottom: none; }
.slab-table input { height: 28px; font-size: 12px; padding: 0 8px; background: var(--surface2); border: 1px solid var(--border); border-radius: 5px; color: var(--ink); font-family: var(--mono); width: 100%; outline: none; }
.slab-table input:focus { border-color: var(--accent); }

/* Section heading */
.sec-head {
  font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink3); padding: 0 0 8px; margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* Override panel */
.override-panel {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--r-xl); padding: 16px; margin-top: 14px; display: none;
}
.override-panel.open { display: block; }

/* Calendar mini heatmap */
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px; }
.cal-day {
  aspect-ratio: 1; border-radius: 4px; display: flex; align-items: center;
  justify-content: center; font-size: 10px; font-family: var(--mono);
  cursor: pointer; transition: all .1s; color: var(--ink3);
  position: relative;
}
.cal-day:hover::after {
  content: attr(data-tip);
  position: absolute; bottom: calc(100% + 4px); left: 50%; transform: translateX(-50%);
  background: var(--surface3); color: var(--ink); font-size: 10px; padding: 3px 7px;
  border-radius: 4px; white-space: nowrap; z-index: 10; pointer-events: none;
}
.cd-present { background: rgba(52,211,153,.25); color: var(--green); }
.cd-absent  { background: rgba(248,113,113,.25); color: var(--red); }
.cd-half    { background: rgba(251,191,36,.25);  color: var(--amber); }
.cd-leave   { background: rgba(167,139,250,.25); color: var(--purple); }
.cd-holiday { background: rgba(34,211,238,.2);   color: var(--teal); }
.cd-woff    { background: var(--surface3); color: var(--ink4); }
.cd-late    { background: rgba(251,146,60,.25);  color: var(--orange); }
.cd-future  { background: transparent; color: var(--ink4); opacity: .4; }

/* Lock banner */
.lock-banner {
  display: flex; align-items: center; gap: 12px; padding: 12px 18px;
  background: var(--green2); border: 1px solid rgba(52,211,153,.3);
  border-radius: var(--r-lg); margin-bottom: 18px;
}
.lock-banner.warn { background: var(--amber2); border-color: rgba(251,191,36,.3); }
.lock-banner.danger { background: var(--red2); border-color: rgba(248,113,113,.3); }

/* OT log row */
.ot-row {
  display: grid; grid-template-columns: 200px 90px 90px 100px 120px 120px auto;
  gap: 8px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border);
}
.ot-row:last-child { border-bottom: none; }
.ot-row.ot-header { font-size: 11px; color: var(--ink3); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; padding-bottom: 8px; }

/* Progress ring (small) */
.pring { width: 44px; height: 44px; }
.pring-track { fill: none; stroke: var(--surface3); stroke-width: 4; }
.pring-fill  { fill: none; stroke-width: 4; stroke-linecap: round; transform: rotate(-90deg); transform-origin: 50% 50%; transition: stroke-dashoffset .4s; }

/* Sync status indicator */
.sync-indicator {
  display: flex; align-items: center; gap: 8px; padding: 8px 14px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 8px; font-size: 12px; color: var(--ink2);
}
.sync-dot { width: 8px; height: 8px; border-radius: 50%; animation: pulse 2s infinite; }
.sync-dot.live  { background: var(--green); }
.sync-dot.stale { background: var(--amber); animation: none; }
.sync-dot.error { background: var(--red); animation: none; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }

/* Flow diagram */
.flow-diagram {
  display: flex; align-items: center; gap: 0;
  padding: 16px 20px; flex-wrap: wrap; background: var(--surface2);
  border-radius: var(--r-lg); border: 1px solid var(--border); margin-bottom: 18px;
}
.flow-node {
  display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 10px 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); min-width: 110px;
}
.flow-node.active-node { border-color: var(--accent); background: var(--accent2); }
.flow-icon { font-size: 20px; }
.flow-label { font-size: 11px; font-weight: 600; color: var(--ink2); text-align: center; }
.flow-sub   { font-size: 10px; color: var(--ink3); text-align: center; }
.flow-arrow { color: var(--ink4); font-size: 18px; padding: 0 6px; flex-shrink: 0; }

/* Detail split layout */
.detail-layout { display: grid; grid-template-columns: 1fr 300px; gap: 18px; align-items: start; }
.sticky-col { position: sticky; top: 16px; }

/* Override audit trail */
.audit-item { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.audit-item:last-child { border-bottom: none; }
.audit-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 4px; }
.audit-dot.ov { background: var(--amber); }
.audit-dot.ok { background: var(--green); }
.audit-time  { font-size: 11px; color: var(--ink3); white-space: nowrap; margin-top: 1px; }
.audit-msg   { font-size: 12.5px; color: var(--ink); }
.audit-user  { font-size: 11px; color: var(--ink3); }

/* LOP rule card */
.lop-rule {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 14px 16px; margin-bottom: 10px;
}
.lop-rule-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.lop-rule-name { font-size: 13px; font-weight: 600; color: var(--ink); font-family: var(--head); }
.lop-rule-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.lop-rule-cell { }
.lop-rule-lbl  { font-size: 10.5px; color: var(--ink3); font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
.lop-rule-val  { font-size: 13px; color: var(--ink); margin-top: 2px; }

/* Formula display */
.formula-box {
  font-family: var(--mono); font-size: 12px; color: var(--green);
  background: rgba(52,211,153,.08); border: 1px solid rgba(52,211,153,.2);
  border-radius: var(--r); padding: 8px 12px; display: inline-block;
}

/* Page header */
.page-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 20px; }
.page-title { font-family: var(--head); font-size: 18px; font-weight: 700; color: var(--ink); letter-spacing: -.3px; }
.page-sub   { font-size: 13px; color: var(--ink3); margin-top: 3px; }

/* Animations */
@keyframes fadeUp { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:translateY(0)} }
.view.active { animation: fadeUp .2s ease; }

/* action bar */
.action-bar {
  position: sticky; bottom: 0; left: 0; right: 0;
  background: var(--surface); border-top: 1px solid var(--border);
  padding: 12px 24px; display: flex; align-items: center; gap: 10px;
  box-shadow: 0 -4px 20px rgba(0,0,0,.3); z-index: 20;
  margin: 0 -24px -60px;
}

/* Add-row btn */
.add-row-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px; color: var(--accent); font-size: 12.5px;
  cursor: pointer; border-top: 1px dashed rgba(79,126,255,.3);
  background: var(--accent2); transition: background .1s;
}
.add-row-btn:hover { background: rgba(79,126,255,.2); }