:root {
  color-scheme: light;
  --bg: #f4f7f6;
  --ink: #18242c;
  --muted: #66747e;
  --line: #d7e0df;
  --surface: #ffffff;
  --accent: #176f6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, Segoe UI, Arial, sans-serif;
}

.platform-shell {
  width: min(920px, calc(100vw - 32px));
  display: grid;
  gap: 24px;
}

.identity {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.mark {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--accent);
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: 44px;
  line-height: 1.05;
}

p {
  max-width: 620px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.status-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.status-panel > div {
  min-height: 92px;
  display: grid;
  align-content: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 18px;
}

.label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

a {
  color: var(--accent);
  font-weight: 700;
}

.login-card {
  display: grid;
  gap: 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 20px;
}

.login-card h2 {
  margin: 6px 0 0;
  font-size: 22px;
}

.login-form {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(180px, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.field {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.field input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  background: var(--surface);
  color: var(--ink);
}

.primary-button,
.secondary-button {
  height: 40px;
  border-radius: 6px;
  cursor: pointer;
}

.primary-button {
  border: 0;
  padding: 0 18px;
  color: #ffffff;
  background: var(--accent);
}

.secondary-button {
  border: 1px solid var(--line);
  padding: 0 16px;
  color: var(--ink);
  background: var(--surface);
}

.primary-button:disabled,
.secondary-button:disabled,
.field input:disabled {
  cursor: wait;
  opacity: 0.62;
}

.bootstrap-panel summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 700;
}

.bootstrap-panel .login-form {
  margin-top: 12px;
}

.alert {
  min-height: 38px;
  display: grid;
  align-items: center;
  border: 1px solid var(--line);
  padding: 0 12px;
}

.alert.error {
  color: #a33b3b;
  border-color: #e2b8b8;
  background: #fff5f5;
}

.hidden {
  display: none;
}

@media (max-width: 640px) {
  body {
    place-items: start;
    padding: 32px 0;
  }

  .identity,
  .status-panel {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 36px;
  }
}

@media (max-width: 760px) {
  .login-form,
  .status-panel {
    grid-template-columns: 1fr;
  }
}