:root {
  color-scheme: light;
  font-family: Arial, sans-serif;
  background: #f5f7f6;
  color: #1d2520;
  --border: #d7ded8;
  --muted: #66756b;
  --panel: #ffffff;
  --primary: #1f6f43;
  --primary-dark: #14532f;
  --soft: #edf4ef;
  --danger: #b42318;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: #f5f7f6; }
.app-shell { min-height: 100vh; }
body.logged-in .app-shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); }

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 18px;
  background: #ffffff;
  border-right: 1px solid var(--border);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 18px;
}

.brand { display: grid; gap: 6px; }
.brand strong { font-size: 20px; }
.brand span { color: var(--muted); font-size: 13px; line-height: 1.4; }
.side-nav { display: grid; align-content: start; gap: 8px; }
.side-nav button { text-align: left; background: #ffffff; color: #1d2520; border-color: transparent; }
.side-nav button:hover, .side-nav button.active { background: var(--soft); color: var(--primary-dark); border-color: #b7d0c0; }
.sidebar-actions { display: grid; gap: 8px; }

.content { max-width: 1240px; width: 100%; padding: 24px; }
.auth-screen { max-width: 980px; margin: 0 auto; padding-top: 28px; }
.screen { display: none; }
.screen.active { display: block; }
.screen-head { margin-bottom: 18px; display: grid; gap: 6px; }

h1, h2, h3, p { margin: 0; letter-spacing: 0; }
h1 { font-size: 28px; }
h2 { font-size: 18px; margin-bottom: 12px; }
p { color: var(--muted); line-height: 1.45; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
  min-width: 0;
}

.grid { display: grid; gap: 14px; }
.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.compact { gap: 10px; }
.stack { display: grid; gap: 14px; }
.crud-layout { display: grid; grid-template-columns: minmax(280px, 360px) minmax(0, 1fr); gap: 16px; align-items: start; }

form { display: grid; gap: 12px; align-content: start; }
label { display: grid; gap: 6px; font-size: 14px; color: #34443a; font-weight: 700; }
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 12px; display: grid; gap: 8px; }
legend { padding: 0 4px; font-weight: 700; color: #34443a; }

input, select, textarea, button {
  font: inherit;
  border-radius: 6px;
  border: 1px solid #c8d2ca;
  padding: 10px 11px;
  width: 100%;
  background: #ffffff;
  color: #1d2520;
}

textarea { min-height: 170px; resize: vertical; font-family: Consolas, monospace; font-size: 13px; }
button { background: var(--primary); color: #ffffff; border-color: var(--primary); cursor: pointer; font-weight: 700; }
button:hover { background: var(--primary-dark); }
button.secondary { background: #ffffff; color: var(--primary); border-color: #9bbda8; }
button.secondary:hover { background: var(--soft); }
button.danger { background: #ffffff; color: var(--danger); border-color: #e2a39e; }
button.danger:hover { background: #fff1f0; }
button.small { width: auto; padding: 7px 9px; font-size: 13px; }

.button-row, .panel-head, .row-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.panel-head { justify-content: space-between; margin-bottom: 12px; }
.summary-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 14px; }
.summary-card { background: #ffffff; border: 1px solid var(--border); border-radius: 8px; padding: 14px; display: grid; gap: 6px; }
.summary-card span { color: var(--muted); font-size: 13px; }
.summary-card strong { font-size: 28px; }

.table-wrap { width: 100%; overflow-x: auto; }
.list-panel { display: grid; gap: 14px; }
.table-toolbar { display: flex; justify-content: flex-end; gap: 12px; }
.table-toolbar label { width: min(320px, 100%); }
.availability-admin-toolbar { justify-content: flex-start; flex-wrap: wrap; }
.availability-admin-toolbar label { flex: 1 1 190px; }
.weekday-groups { display: grid; gap: 18px; }
.weekday-group { display: grid; gap: 8px; }
.weekday-group h3 { font-size: 16px; color: var(--primary-dark); }
table { width: 100%; border-collapse: collapse; min-width: 700px; }
th, td { border-bottom: 1px solid var(--border); padding: 10px; text-align: left; vertical-align: top; }
th { background: #f0f4f1; color: #34443a; font-size: 13px; }
tr:last-child td { border-bottom: 0; }

.shift-list { display: grid; gap: 10px; }
.availability-toolbar {
  display: grid;
  grid-template-columns: repeat(4, minmax(130px, 1fr)) auto;
  gap: 10px;
  align-items: end;
}
.availability-toolbar button { width: auto; min-height: 41px; }
.availability-range-list { display: grid; gap: 10px; }
.availability-range {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
  display: grid;
  gap: 10px;
}
.availability-range-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.availability-range-head span, .availability-match-list span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }
.availability-match-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 6px 12px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.shift-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 16px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  background: #fbfdfb;
}
.shift-row span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }
.range-label { grid-template-columns: 82px minmax(130px, 1fr) 92px; align-items: center; gap: 10px; }
input[type="range"] { padding: 0; accent-color: var(--primary); }
output { color: var(--primary-dark); font-weight: 700; }
.check-row { display: flex; align-items: center; gap: 8px; font-weight: 600; color: #1d2520; }
.check-row input { width: 18px; height: 18px; flex: 0 0 auto; }
.inline-checks { display: grid; gap: 6px; min-width: 150px; }
.compact-check { font-size: 13px; font-weight: 600; }

.preview-panel { margin-top: 14px; }
.schedule-preview.empty, .empty-box { color: var(--muted); background: #f7faf8; border: 1px dashed var(--border); border-radius: 8px; padding: 18px; }
.schedule-preview { display: grid; gap: 18px; }
.schedule-matrix-group { display: grid; gap: 8px; }
.schedule-matrix-group h3 { color: var(--primary-dark); font-size: 16px; }
.schedule-matrix { min-width: 980px; table-layout: fixed; }
.schedule-matrix th:first-child, .schedule-matrix td:first-child { width: 150px; }
.schedule-matrix td { line-height: 1.45; }
.hidden { display: none !important; }

@media (max-width: 980px) {
  body.logged-in .app-shell { display: block; }
  .sidebar { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--border); }
  .side-nav { display: flex; overflow-x: auto; padding-bottom: 4px; }
  .side-nav button { white-space: nowrap; text-align: center; width: auto; }
  .sidebar-actions { grid-template-columns: repeat(2, 1fr); }
  .content { padding: 16px; }
  .two, .summary-grid, .crud-layout, .shift-row, .availability-toolbar { grid-template-columns: 1fr; }
  .availability-toolbar button { width: 100%; }
  .availability-range-head { align-items: flex-start; flex-direction: column; }
  .range-label { grid-template-columns: 1fr; }
  .button-row button { flex: 1; }
}