:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #667085;
  --line: #d8dee8;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --accent: #b45309;
  --danger: #b42318;
  --ok: #027a48;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 16px;
}

.login-shell {
  min-height: 100vh;
  width: min(460px, calc(100vw - 32px));
  margin: 0 auto;
  display: grid;
  align-items: center;
  padding: 32px 0;
}

.login-panel h1 {
  font-size: clamp(34px, 7vw, 56px);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 10px 28px rgba(31, 41, 55, 0.06);
}

.key-panel {
  grid-row: span 2;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0 0 18px;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.02;
}

h2 {
  font-size: 20px;
}

.stack {
  display: grid;
  gap: 14px;
}

label,
.snippet,
.result {
  display: grid;
  gap: 8px;
}

label span,
.snippet span,
.result span,
.usage-grid span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--ink);
  font: inherit;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  background: var(--primary);
  color: #ffffff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

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

button.secondary {
  background: #eef2f6;
  color: var(--ink);
}

button.secondary:hover {
  background: #dde4ee;
}

.result {
  margin-top: 18px;
}

.copy-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

code,
pre {
  border-radius: 6px;
  background: #f2f4f7;
  color: #182230;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}

code {
  padding: 10px;
  overflow-wrap: anywhere;
}

pre {
  margin: 16px 0 0;
  padding: 14px;
  overflow-x: auto;
}

pre code {
  display: block;
  padding: 0;
}

.meter {
  margin-top: 18px;
}

.meter-track {
  height: 12px;
  background: #eef2f6;
  border-radius: 999px;
  overflow: hidden;
}

#meter-bar {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width 180ms ease;
}

.usage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.usage-grid div {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
}

.usage-grid strong {
  display: block;
  margin-top: 4px;
  font-size: 24px;
}

.status {
  grid-column: 1 / -1;
  min-height: 24px;
  margin: 0;
  color: var(--muted);
}

.status[data-tone="error"] {
  color: var(--danger);
}

.status[data-tone="success"] {
  color: var(--ok);
}

.hidden {
  display: none;
}

@media (max-width: 820px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .key-panel {
    grid-row: auto;
  }
}