:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1c1f24;
  --muted: #5b636e;
  --accent: #1a5fd0;
  --accent-text: #ffffff;
  --border: #d9dde3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --card: #1e2127;
    --text: #e8eaed;
    --muted: #a0a7b1;
    --accent: #6b9cf0;
    --accent-text: #0d1117;
    --border: #353a42;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  width: 100%;
  max-width: 400px;
  padding: 32px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
}

h1 { margin: 0 0 20px; font-size: 28px; line-height: 0; }
.logo { width: 240px; max-width: 100%; height: auto; }
p { margin: 0 0 16px; color: var(--muted); }
.name { margin-bottom: 4px; color: var(--text); font-weight: 600; }
.email { overflow-wrap: anywhere; }

button {
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button.secondary { background: transparent; color: var(--accent); }
button:disabled { opacity: 0.6; cursor: wait; }
button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }