:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1c2330;
  --muted: #6b7686;
  --line: #e3e7ee;
  --primary: #1f6feb;
  --primary-soft: #e8f0fe;
  --ok: #1a7f37;
  --ok-soft: #e3f6e8;
  --late: #b35900;
  --late-soft: #fff1df;
  --bad: #c62828;
  --bad-soft: #fde8e8;
  --none: #8a94a3;
  --none-soft: #eef0f4;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Rubik", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  -webkit-tap-highlight-color: transparent;
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--primary); }

.topbar {
  position: sticky; top: 0; z-index: 20;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px;
  display: flex; align-items: center; gap: 12px;
}
.topbar h1 { font-size: 18px; margin: 0; flex: 1; }
.topbar .sub { color: var(--muted); font-size: 14px; }
.wrap { max-width: 980px; margin: 0 auto; padding: 16px; }
.narrow { max-width: 560px; }

.card {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 16px; margin-bottom: 12px;
}
.card h2, .card h3 { margin: 0 0 8px; font-size: 17px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.right { margin-inline-start: auto; }
.hidden { display: none !important; }
.center { text-align: center; }

.btn {
  border: 1px solid var(--line); background: var(--card);
  border-radius: 10px; padding: 9px 14px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 40px; text-decoration: none; color: var(--text);
}
.btn:hover { border-color: #c9d0db; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.btn.late { background: var(--late); border-color: var(--late); color: #fff; }
.btn.bad { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.big { min-height: 54px; font-size: 18px; font-weight: 600; border-radius: 12px; }
.btn.block { width: 100%; }
.btn.sm { min-height: 32px; padding: 4px 10px; font-size: 14px; }

.chip {
  display: inline-flex; align-items: center; gap: 4px;
  border-radius: 999px; padding: 2px 10px; font-size: 13px; font-weight: 600;
  background: var(--none-soft); color: var(--none); white-space: nowrap;
}
.chip.on_time { background: var(--ok-soft); color: var(--ok); }
.chip.late { background: var(--late-soft); color: var(--late); }
.chip.absent { background: var(--bad-soft); color: var(--bad); }
.chip.info { background: var(--primary-soft); color: var(--primary); }
.chip.warn { background: var(--late-soft); color: var(--late); }

.tabs { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  border: 1px solid var(--line); background: var(--card); border-radius: 999px;
  padding: 6px 14px; cursor: pointer; white-space: nowrap; font-size: 15px;
}
.tab.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.tab .d { font-size: 12px; opacity: .8; margin-inline-start: 4px; }

.lesson {
  display: flex; gap: 12px; align-items: center;
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 12px 14px; margin-bottom: 10px; cursor: pointer; border: 2px solid transparent;
  width: 100%; text-align: start;
}
.lesson:hover { border-color: var(--primary-soft); }
.lesson.cancelled { opacity: .55; cursor: default; }
.lesson.cancelled .subj { text-decoration: line-through; }
.lesson.disabled { cursor: default; }
.lesson .num {
  width: 42px; height: 42px; border-radius: 12px; background: var(--primary-soft); color: var(--primary);
  display: grid; place-items: center; font-weight: 700; font-size: 18px; flex: none;
}
.lesson .subj { font-weight: 600; }
.lesson .meta { color: var(--muted); font-size: 14px; }
.lesson .note { color: var(--late); font-size: 13px; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; margin-bottom: 12px; }
.kpi { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 12px 14px; }
.kpi .v { font-size: 26px; font-weight: 700; }
.kpi .l { color: var(--muted); font-size: 13px; }
.kpi.ok .v { color: var(--ok); } .kpi.late .v { color: var(--late); } .kpi.bad .v { color: var(--bad); }

.bar { display: flex; height: 8px; border-radius: 99px; overflow: hidden; background: var(--none-soft); margin-top: 6px; }
.bar span { display: block; height: 100%; }
.bar .on_time { background: var(--ok); } .bar .late { background: #e69a3b; } .bar .absent { background: var(--bad); }

table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th, table.tbl td { padding: 8px 8px; border-bottom: 1px solid var(--line); text-align: start; vertical-align: middle; }
table.tbl th { color: var(--muted); font-weight: 600; font-size: 13px; background: #fafbfc; position: sticky; top: 0; }
.tbl-wrap { overflow-x: auto; }
td.num, th.num { text-align: center; }

label.f { display: block; margin-bottom: 10px; }
label.f > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input[type=text], input[type=email], input[type=tel], input[type=date], input[type=time], input[type=number], input[type=password], select, textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; background: #fff; min-height: 40px;
}
textarea { min-height: 70px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary-soft); border-color: var(--primary); }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px; }
.checks label { display: flex; gap: 6px; align-items: center; padding: 6px 8px; border: 1px solid var(--line); border-radius: 8px; cursor: pointer; font-size: 14px; }

/* חלונות קופצים */
.overlay {
  position: fixed; inset: 0; background: rgba(15, 20, 30, .45); z-index: 100;
  display: flex; align-items: flex-end; justify-content: center;
}
.sheet {
  background: var(--card); width: 100%; max-width: 620px; max-height: 92vh; overflow: auto;
  border-radius: 18px 18px 0 0; padding: 18px 16px calc(18px + env(safe-area-inset-bottom));
  animation: up .18s ease-out;
}
@media (min-width: 700px) {
  .overlay { align-items: center; }
  .sheet { border-radius: 18px; }
}
@keyframes up { from { transform: translateY(30px); opacity: .5; } to { transform: none; opacity: 1; } }
.sheet h2 { margin: 0 0 6px; font-size: 20px; }
.sheet .actions { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.sheet .actions .btn { flex: 1; }

.toast {
  position: fixed; top: calc(14px + env(safe-area-inset-top)); left: 50%; transform: translateX(-50%);
  background: #1c2330; color: #fff; padding: 10px 18px; border-radius: 12px; z-index: 200;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .2); max-width: 90vw; text-align: center;
}
.toast.bad { background: var(--bad); } .toast.ok { background: var(--ok); }

.empty { text-align: center; color: var(--muted); padding: 30px 10px; }
.err-page { max-width: 480px; margin: 15vh auto; text-align: center; padding: 16px; }
.alert { border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; }
.alert.ok { background: var(--ok-soft); color: var(--ok); }
.alert.bad { background: var(--bad-soft); color: var(--bad); }
.alert.warn { background: var(--late-soft); color: var(--late); }
.alert ul { margin: 6px 0 0; padding-inline-start: 18px; }
pre.report { white-space: pre-wrap; background: #fafbfc; border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-family: inherit; font-size: 14px; max-height: 50vh; overflow: auto; }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.seg button { border: 0; background: var(--card); padding: 7px 16px; cursor: pointer; }
.seg button.active { background: var(--primary); color: #fff; }