:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: rgba(10, 19, 35, 0.92);
  --panel-border: rgba(255, 255, 255, 0.12);
  --text: #f5f7fb;
  --muted: rgba(245, 247, 251, 0.72);
  --accent: #39d98a;
  --accent-strong: #22b46d;
  --warn: #ffb347;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", "Avenir Next", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(57, 217, 138, 0.22), transparent 32%),
    radial-gradient(circle at bottom right, rgba(65, 140, 255, 0.24), transparent 28%),
    linear-gradient(160deg, #040b16 0%, #07111f 45%, #081526 100%);
  color: var(--text);
}

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

.panel {
  width: min(100%, 460px);
  padding: 32px;
  border-radius: 28px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(18px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(57, 217, 138, 0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 18px 0 12px;
  font-size: 32px;
  line-height: 1.1;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.stack {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 16px;
  padding: 16px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 120ms ease, opacity 120ms ease, background 120ms ease;
}

.button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #04110b;
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.meta {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  color: rgba(245, 247, 251, 0.62);
  display: grid;
  gap: 8px;
}

.status {
  margin-top: 18px;
  min-height: 24px;
  font-size: 14px;
  color: var(--muted);
}

.status.error {
  color: var(--warn);
}

.spinner {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 3px solid rgba(255, 255, 255, 0.18);
  border-top-color: var(--accent);
  animation: spin 900ms linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.row {
  display: flex;
  align-items: center;
  gap: 12px;
}