:root { --primary: #3b5bdb; --radius: 14px; --border: var(--line); --text: var(--ink); --panel: var(--surface); }
body { margin: 0; font-family: var(--font, ui-sans-serif, system-ui, sans-serif); }
button, .button, input, select, textarea { border-radius: var(--radius); }
.panel { padding: var(--space, 24px); }
form.panel, .form-grid { gap: var(--gap, 16px); }
th, td { padding: var(--cell-space, 14px) var(--space, 24px); }
* { box-sizing: border-box; }
.app-shell { display: grid; grid-template-columns: 240px minmax(0, 1fr); min-height: 100vh; }
.sidebar {
  display: block; min-width: 0; padding: 24px 18px;
  border-right: 1px solid var(--border); background: var(--panel);
}
.brand { font-size: 22px; font-weight: 800; letter-spacing: -.8px; margin-bottom: 6px; }
.brand-mark { color: white; border-radius: var(--radius); border-bottom: 3px solid var(--accent); }
.sidebar nav { display: grid; gap: 5px; margin-top: 30px; }
.sidebar nav a {
  padding: var(--cell-space, 14px); border-radius: var(--radius); text-decoration: none; color: var(--text);
}
.sidebar nav a.active { background: var(--primary); color: white; }
.workspace { padding: 26px 36px; min-width: 0; max-width: 1500px; width: 100%; }
.topbar { display: flex; gap: 12px; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.topbar .actions { margin: 0; }
h1 { font-size: clamp(25px, 4vw, 34px); letter-spacing: -1px; margin: 32px 0 6px; }
.subtitle { color: var(--muted); margin: 0 0 24px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: var(--gap, 16px); }
.card {
  padding: var(--space, 24px); border: 1px solid var(--border); background: var(--panel); border-radius: var(--radius);
}
.card strong { display: block; font-size: 32px; margin-top: 10px; }
.section-head {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; margin-top: 28px;
}
.status { display: inline-block; padding: 5px 10px; border-radius: 20px; background: var(--bg); }
.status.present { color: #087f5b; background: #d3f9d8; }
.status.absent { color: #c92a2a; background: #ffe3e3; }
.status.late, .status.half_day { color: #92400e; background: #fff3bf; }
.status.leave { color: #364fc7; background: #dbe4ff; }
.sheet-row { display: grid; grid-template-columns: 180px 1fr;
  gap: var(--gap, 16px); padding: var(--space, 24px) 0; border-bottom: 1px solid var(--border); }
.sheet-controls { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
.sheet-controls label { flex: 1; min-width: 95px; }
.sheet-controls input, .sheet-controls select { width: 100%; }
.status-buttons { display: flex; flex-wrap: wrap; gap: 5px; }
.status-buttons button { padding: 7px 10px; }
.status-buttons button[aria-pressed="false"] { background: var(--bg); color: var(--text); }
.two-columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--gap, 16px); }
form, input, select, textarea, svg { max-width: 100%; }
.filters input, .filters select { width: 100%; min-width: 0; }
.qr svg { width: 260px; background: white; padding: 12px; }
.meter { background: var(--border); border-radius: 8px; overflow: hidden; height: 12px; }
.meter span { display: block; height: 100%; background: var(--primary); }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; }
@media (max-width: 760px) {
  .app-shell { display: block; }
  .sidebar {
    display: block; min-width: 0; padding: 14px 16px; border-right: 0; border-bottom: 1px solid var(--border);
  }
  .sidebar nav { display: flex; overflow-x: auto; margin-top: 14px; }
  .sidebar nav a { white-space: nowrap; }
  .workspace { padding: 18px 16px; }
  .sheet-row { grid-template-columns: 1fr; }
  .two-columns { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 700px) {
  td { padding: 6px; }
}