:root {
  color-scheme: light;
  --ink: #1d2733;
  --muted: #596879;
  --line: #d9e0e8;
  --panel: #ffffff;
  --soft: #eef5f7;
  --accent: #0f766e;
  --accent-dark: #0b5f59;
  --warn: #a74416;
  --danger: #b42318;
  --gold: #f6c453;
  --blue: #2f6fed;
  --green: #16a34a;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #f7fbfc 0%, #eef4f1 48%, #f8fafc 100%);
}

a {
  color: inherit;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  position: sticky;
  top: 0;
  z-index: 2;
}

.topbar div {
  display: grid;
  gap: 2px;
}

.topbar span {
  color: var(--muted);
  font-size: 13px;
}

nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

nav a,
.button,
button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  font: inherit;
  cursor: pointer;
}

.button.primary,
button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.button.primary:hover,
button.primary:hover {
  background: var(--accent-dark);
}

.trainer-layout,
.dashboard {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 56px;
}

.hero {
  min-height: calc(100vh - 152px);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: 28px;
  align-items: center;
}

.hero-copy h1,
.dashboard-heading h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 70px);
  line-height: 1.02;
  letter-spacing: 0;
  max-width: 820px;
}

.hero-copy p,
.dashboard-heading p {
  max-width: 700px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.qr-panel,
.login-card,
.explain-panel,
.learning-grid article,
.notes,
.debrief,
.capture-table-wrap {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(31, 45, 61, 0.09);
}

.qr-panel {
  padding: 18px;
}

.panel-heading,
.dashboard-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.panel-heading span {
  font-weight: 700;
}

.qr-code {
  width: 100%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  margin: 16px 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.qr-code svg {
  width: 100%;
  height: 100%;
}

label {
  display: block;
  margin: 14px 0 6px;
  font-weight: 650;
}

input {
  width: 100%;
  border: 1px solid #b8c3cf;
  border-radius: 6px;
  padding: 13px 12px;
  font: inherit;
  background: #fff;
}

.hint,
.empty-state {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.learning-grid article,
.notes,
.debrief {
  padding: 22px;
}

.step {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--gold);
  font-weight: 800;
}

h2 {
  margin: 14px 0 8px;
  font-size: 22px;
}

li {
  margin: 10px 0;
  color: var(--muted);
}

code {
  background: #edf2f7;
  padding: 2px 5px;
  border-radius: 5px;
}

.training-ribbon {
  background: #fff4df;
  color: #6e3f08;
  border-bottom: 1px solid #f0d7a6;
  padding: 12px 18px;
  text-align: center;
  font-weight: 700;
}

.login-body {
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(47, 111, 237, 0.16), transparent 34%),
    linear-gradient(315deg, rgba(15, 118, 110, 0.2), transparent 42%),
    #f6f8fb;
}

.login-shell {
  min-height: calc(100vh - 45px);
  display: grid;
  grid-template-columns: minmax(320px, 440px) minmax(280px, 420px);
  gap: 24px;
  align-items: center;
  justify-content: center;
  padding: 32px 18px;
}

.login-card {
  padding: 34px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 4px;
  margin-bottom: 22px;
}

.brand-mark span:nth-child(1) { background: var(--blue); }
.brand-mark span:nth-child(2) { background: var(--green); }
.brand-mark span:nth-child(3) { background: var(--gold); }
.brand-mark span:nth-child(4) { background: #ef4444; }

.login-card h1 {
  margin: 0;
  font-size: 32px;
}

.login-subtitle {
  color: var(--muted);
  margin-bottom: 24px;
}

.wide {
  width: 100%;
  margin-top: 18px;
}

.form-warning {
  min-height: 22px;
  color: var(--warn);
  font-size: 14px;
  margin-top: 10px;
}

.login-links {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 20px;
  font-size: 14px;
}

.login-links a {
  color: var(--blue);
  text-decoration: none;
}

.explain-panel {
  padding: 26px;
  max-width: 420px;
}

.dashboard-heading {
  align-items: flex-end;
  margin-bottom: 22px;
}

.capture-table-wrap {
  overflow-x: auto;
  padding: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #f4f8fa;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0;
}

.status-safe {
  color: var(--accent-dark);
  font-weight: 700;
}

.status-blocked {
  color: var(--danger);
  font-weight: 700;
}

.empty-state {
  padding: 20px;
}

.debrief {
  margin-top: 22px;
}

@media (max-width: 860px) {
  .topbar,
  .panel-heading,
  .dashboard-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .login-shell,
  .learning-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy h1,
  .dashboard-heading h1 {
    font-size: 40px;
  }
}

@media print {
  .topbar nav,
  .actions,
  .notes,
  .learning-grid,
  #refreshQr,
  #printBtn,
  label,
  input,
  .hint {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr 340px;
  }

  body {
    background: #fff;
  }
}