:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --border: #e2e8f0;
  --text: #1f2937;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --kid: #7c3aed;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.05), 0 4px 12px rgba(15, 23, 42, 0.06);
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 16px; }

/* Header */
header.app-header {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
header.app-header h1 {
  font-size: 18px;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.role-badge {
  font-size: 11px;
  background: #eef2ff;
  color: #3730a3;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.role-badge.kid { background: #f3e8ff; color: #6b21a8; }

nav.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
nav.tabs button {
  background: transparent;
  border: 1px solid transparent;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  color: var(--muted);
  position: relative;
}
nav.tabs button.active {
  background: var(--primary);
  color: white;
}
nav.tabs button:hover:not(.active) { background: #eef2ff; color: var(--primary); }

nav.tabs .badge {
  display: inline-block;
  margin-left: 6px;
  background: var(--warning);
  color: white;
  border-radius: 999px;
  font-size: 11px;
  padding: 1px 7px;
}

.user-controls { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); }
.user-controls strong { color: var(--text); }

/* Layout */
main { padding: 20px 16px; max-width: 1100px; margin: 0 auto; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.card h2 { margin-top: 0; font-size: 16px; }
.card h3 { margin-top: 0; font-size: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

/* Forms */
.form-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 8px; }
label { font-size: 12px; color: var(--muted); display: block; margin-bottom: 4px; }
input, select, textarea, button {
  font: inherit;
}
input[type=text], input[type=password], input[type=number], input[type=date], select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: white;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
.field { flex: 1 1 160px; }
.field.small { flex: 0 0 110px; }
.field.tiny { flex: 0 0 90px; }

button {
  cursor: pointer;
  border: 1px solid var(--border);
  background: white;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
}
button.primary { background: var(--primary); border-color: var(--primary); color: white; }
button.primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
button.success { background: var(--success); border-color: var(--success); color: white; }
button.warning { background: var(--warning); border-color: var(--warning); color: white; }
button.danger  { background: var(--danger); border-color: var(--danger); color: white; }
button.ghost { background: transparent; }
button:disabled { opacity: .5; cursor: not-allowed; }

button.icon-btn { padding: 4px 8px; font-size: 12px; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
tbody tr:hover { background: #f8fafc; }
td .actions { display: flex; gap: 6px; flex-wrap: wrap; }

.status-pending  { color: var(--warning); font-weight: 600; }
.status-approved { color: var(--success); font-weight: 600; }
.status-rejected { color: var(--danger);  font-weight: 600; }

/* Numbers / metrics */
.metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.metric .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.metric .value { font-size: 26px; font-weight: 700; }
.metric .sub { font-size: 12px; color: var(--muted); }
.metric.balance .value { color: var(--success); }
.metric.spent   .value { color: var(--danger); }
.metric.earned  .value { color: var(--primary); }

.kid-card {
  background: linear-gradient(135deg, #eef2ff 0%, #faf5ff 100%);
  border: 1px solid #ddd6fe;
}
.kid-card h2 { color: var(--kid); }
.kid-card .value { color: var(--kid); }

/* Login */
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #eef2ff, #fef3c7);
  padding: 16px;
}
.login-card {
  width: 100%;
  max-width: 360px;
  background: white;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.18);
}
.login-card h1 { margin-top: 0; }

/* Charts */
.chart-wrap { position: relative; height: 280px; }

/* Empty state */
.empty {
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* Toast */
#toasts {
  position: fixed; bottom: 16px; right: 16px;
  display: flex; flex-direction: column; gap: 8px;
  z-index: 1000;
  pointer-events: none;
}
.toast {
  background: var(--text); color: white;
  padding: 10px 14px; border-radius: 8px;
  box-shadow: var(--shadow);
  font-size: 14px;
  pointer-events: auto;
}
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }

.muted { color: var(--muted); }
.small { font-size: 12px; }
.row-flex { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* Tag */
.tag {
  display: inline-block;
  background: #eef2ff;
  color: #3730a3;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  margin-right: 4px;
}
.tag.gray { background: #f1f5f9; color: var(--muted); }

/* Quick buttons (Uusi kirjaus) */
.quick-picks {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #f8fafc;
  padding: 10px 12px;
  margin: 4px 0 14px;
}
.quick-head {
  display: flex;
  gap: 8px;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  font-size: 13px;
  margin-bottom: 8px;
}
.quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
}
.quick-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-height: 52px;
  padding: 8px 10px;
  text-align: left;
  background: white;
  border: 1px solid #c7d2fe;
  border-radius: 10px;
  line-height: 1.25;
}
.quick-btn:hover:not(:disabled) { background: #eef2ff; border-color: var(--primary); }
.quick-btn:active:not(:disabled) { transform: scale(.98); }
.quick-btn .qb-name { font-weight: 600; font-size: 13px; }
.quick-btn .qb-sub { font-size: 11px; color: var(--muted); }
.quick-log { font-size: 12px; color: var(--success); margin-top: 8px; }
.quick-log div { padding: 1px 0; }

/* Star toggle (Tehtävät) */
.star-btn {
  border: none;
  background: transparent;
  font-size: 18px;
  line-height: 1;
  padding: 2px 6px;
  filter: grayscale(1);
  opacity: .55;
}
.star-btn.on { filter: none; opacity: 1; }
.star-btn:hover:not(:disabled) { opacity: 1; }

.check-row { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); margin-bottom: 0; }
.check-row input[type=checkbox] { width: 18px; height: 18px; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, .55);
  display: grid; place-items: center;
  padding: 16px;
  z-index: 100;
}
.modal {
  background: white;
  border-radius: 12px;
  padding: 22px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.3);
}
.modal h2 { margin-top: 0; }

@media (max-width: 600px) {
  header.app-header h1 { font-size: 16px; }
  nav.tabs button { padding: 6px 10px; font-size: 13px; }
  th, td { padding: 6px 6px; font-size: 13px; }
}