:root {
  --primary: #428BCA;
  --primary-dark: #357EBD;
  --bg: #eef1f5;
  --card: #ffffff;
  --text: #333;
  --muted: #888;
  --border: #dfe3e8;
  --success: #3aa657;
  --danger: #d9534f;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

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

/* ---- Top bar ---- */
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 20px;
}
.brand { font-size: 18px; font-weight: 700; color: var(--primary); }
.brand:hover { text-decoration: none; }
.mainnav { display: flex; gap: 6px; flex: 1; }
.mainnav a {
  padding: 6px 12px;
  border-radius: 6px;
  color: #555;
}
.mainnav a:hover { background: #f0f4f8; text-decoration: none; }
.mainnav a.active { background: var(--primary); color: #fff; }
.userbox { display: flex; align-items: center; gap: 10px; }
.username { font-weight: 600; }
.logout-form { margin: 0; }

/* ---- Layout ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 24px 20px; }
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.page-head h1 { font-size: 22px; margin: 0; }
.head-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 20px;
}
.card-title { font-size: 15px; margin: 0 0 14px; color: #555; }
.muted { color: var(--muted); }
.two-col { display: grid; grid-template-columns: 1fr 360px; gap: 20px; }

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14px;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  background: #e9eef3;
  color: #333;
  text-align: center;
}
.btn:hover { text-decoration: none; filter: brightness(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--border); }

/* ---- Forms ---- */
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; margin-bottom: 5px; font-weight: 600; color: #555; }
.field > span em { color: var(--danger); font-style: normal; }
.field input, .field select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--primary); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
.form-card { max-width: 760px; }
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ---- Alerts ---- */
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 18px; }
.alert-error { background: #fdecea; color: #a23c38; border: 1px solid #f5c6c3; }
.alert-info { background: #eaf3fb; color: #2c6395; border: 1px solid #c5ddf2; }
.alert-success { background: #e8f6ec; color: #2c7a43; border: 1px solid #bfe6cb; }

/* ---- Login ---- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #428BCA, #2c5d85);
}
.login-card {
  background: #fff;
  padding: 36px 32px;
  border-radius: 12px;
  width: 340px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}
.login-brand { text-align: center; margin: 0; font-size: 26px; color: var(--primary); }
.login-sub { text-align: center; color: var(--muted); margin: 6px 0 22px; }

/* ---- Dashboard stats ---- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.stat-card-accent { background: var(--primary); color: #fff; border-color: var(--primary-dark); }
.stat-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; opacity: 0.85; }
.stat-value { font-size: 30px; font-weight: 700; margin-top: 6px; }

/* ---- Bar chart ---- */
.bar-chart { display: flex; align-items: flex-end; gap: 14px; height: 180px; padding-top: 10px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; }
.bar-track { flex: 1; width: 100%; display: flex; align-items: flex-end; }
.bar-fill { width: 60%; margin: 0 auto; background: var(--primary); border-radius: 4px 4px 0 0; min-height: 2px; transition: height 0.3s; }
.bar-count { font-weight: 700; margin-top: 4px; }
.bar-day { font-size: 11px; color: var(--muted); }

/* ---- Tables ---- */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: 0.4px; }
.data-table tr:hover td { background: #f8fafc; }
.data-table .check-col { width: 34px; text-align: center; }
.data-table .row-check, #selectAll { width: 16px; height: 16px; cursor: pointer; }
.sel-count { font-size: 13px; font-weight: 400; color: var(--muted); margin-left: 6px; }

/* ---- Pills ---- */
.status-pill, .role-pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: capitalize;
}
.status-pending { background: #fdf0d5; color: #9a6a00; }
.status-completed { background: #e8f6ec; color: #2c7a43; }
.role-admin { background: #e7e0fb; color: #5b3bb5; }
.role-staff { background: #e2eefb; color: #2c6395; }

/* ---- Step indicator ---- */
.step-indicator { color: var(--muted); }
.step { padding: 3px 8px; border-radius: 5px; }
.step.active { background: var(--primary); color: #fff; }
.step.done { background: #e8f6ec; color: #2c7a43; }

/* ---- Capture: candidate summary + device ---- */
.candidate-summary { display: flex; flex-direction: column; gap: 4px; }
.device-panel .device-head { display: flex; align-items: center; justify-content: space-between; }
.device-status { font-weight: 600; }
.device-status.ok { color: var(--success); }
.device-status.err { color: var(--danger); }
.device-info { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 10px; color: #555; }

/* ---- Capture: hands grid (left hand stacked on top of right hand) ---- */
.hands { display: flex; flex-direction: column; gap: 24px; }
.hand + .hand { padding-top: 20px; border-top: 1px solid var(--border); }
.hand-title { font-size: 14px; color: #555; margin: 0 0 12px; }
.finger-row { display: flex; gap: 10px; }
.finger-card {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  text-align: center;
  position: relative;
  background: #fcfdfe;
}
.finger-card.is-thumb { border-color: var(--primary); background: #f4f9fd; }
.finger-card.captured { border-color: var(--success); background: #f3fbf5; }
.finger-check {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 22px;
  height: 22px;
  background: var(--success);
  color: #fff;
  border-radius: 50%;
  font-size: 14px;
  line-height: 22px;
  display: none;
}
.finger-card.captured .finger-check { display: block; }
.finger-img {
  height: 124px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 1px dashed var(--border);
  border-radius: 6px;
  margin-bottom: 6px;
  overflow: hidden;
}
.finger-img img {
  max-height: 100%;
  max-width: 100%;
  /* fingerprints are fine line detail — keep edges crisp when scaled */
  image-rendering: -webkit-optimize-contrast;
}
.finger-img-empty { font-size: 11px; color: #bbb; }
.finger-label { font-size: 12px; font-weight: 600; margin-bottom: 4px; }
.finger-label .req { color: var(--danger); }
.finger-meta { font-size: 11px; color: #777; margin-bottom: 6px; }
.capture-btn { width: 100%; }

/* Low-quality capture flag */
.finger-card.low-quality { border-color: #e0a800; background: #fffaf0; }
.finger-warn {
  position: absolute;
  top: -8px;
  left: -8px;
  width: 22px;
  height: 22px;
  background: #e0a800;
  color: #fff;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  line-height: 22px;
  text-align: center;
  display: none;
}
.finger-card.low-quality .finger-warn { display: block; }

/* ---- Toasts ---- */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #333;
  color: #fff;
  padding: 12px 18px;
  border-radius: 8px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.25s, transform 0.25s;
  z-index: 1000;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--primary); }

/* ---- Footer ---- */
.appfooter { text-align: center; color: var(--muted); padding: 20px; font-size: 12px; }
.error-card { text-align: center; }

@media (max-width: 900px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid, .two-col { grid-template-columns: 1fr; }
  .mainnav { flex-wrap: wrap; }
}