:root {
  color-scheme: light;
  --background: #f5f7f8;
  --panel: #ffffff;
  --text: #172126;
  --muted: #5b6970;
  --line: #d8e0e4;
  --primary: #176c5f;
  --primary-hover: #11564b;
  --danger: #a52828;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    linear-gradient(135deg, rgba(23, 108, 95, 0.12), transparent 34%),
    linear-gradient(315deg, rgba(201, 87, 60, 0.1), transparent 32%),
    var(--background);
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.panel {
  width: min(100%, 420px);
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 24px 60px rgba(23, 33, 38, 0.12);
}

.app-panel {
  text-align: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(2rem, 10vw, 3.25rem);
  line-height: 1;
  letter-spacing: 0;
}

.stack {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  font: inherit;
}

input:focus {
  border-color: var(--primary);
  outline: 3px solid rgba(23, 108, 95, 0.18);
}

button {
  min-height: 46px;
  border: 0;
  border-radius: 6px;
  padding: 10px 16px;
  color: #ffffff;
  background: var(--primary);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--primary-hover);
}

button:disabled {
  cursor: wait;
  opacity: 0.68;
}

button.secondary {
  color: var(--primary);
  border: 1px solid var(--line);
  background: #ffffff;
}

button.secondary:hover {
  background: #edf5f3;
}

.message {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
}

.message.error {
  color: var(--danger);
}

.signed-in {
  margin: -8px 0 24px;
  color: var(--muted);
}

[hidden] {
  display: none !important;
}