:root {
  color-scheme: light dark;
  --bg: #f5f6f8;
  --card-bg: #ffffff;
  --text: #1a1a1a;
  --muted: #666;
  --border: #e2e2e2;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --error: #d92d20;
  --ok: #067647;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14151a;
    --card-bg: #1e1f26;
    --text: #f0f0f0;
    --muted: #9a9a9a;
    --border: #2f303a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.view { max-width: 640px; margin: 0 auto; padding: 24px 16px 64px; }
.hidden { display: none; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 20px;
}

.login-card { margin-top: 15vh; }

h1 { margin: 0 0 4px; font-size: 1.6rem; }
h2 { margin-top: 0; font-size: 1.1rem; }
.subtitle { color: var(--muted); margin-top: 0; margin-bottom: 20px; }

header {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 16px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

label {
  display: block;
  margin-bottom: 14px;
  font-size: 0.9rem;
  color: var(--muted);
}

input, select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 1rem;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}
button:hover { background: var(--accent-hover); }
button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
button.small { padding: 6px 12px; font-size: 0.85rem; margin-top: 8px; }

.actions { display: flex; gap: 10px; margin: 14px 0; }

.error { color: var(--error); min-height: 1.2em; }
.msg { color: var(--ok); min-height: 1.2em; }
.hint { color: var(--muted); font-size: 0.85rem; margin-top: -8px; }

#status-box { font-size: 0.95rem; line-height: 1.6; }

#log-box {
  background: #0d0d10;
  color: #d0d0d0;
  padding: 14px;
  border-radius: 8px;
  max-height: 320px;
  overflow-y: auto;
  font-size: 0.8rem;
  white-space: pre-wrap;
  word-break: break-word;
}