:root {
  color-scheme: light dark;
  --bg: #0f1115;
  --panel: #171a21;
  --border: #2a2e38;
  --text: #e6e8ec;
  --muted: #9aa1ac;
  --accent: #5b8cff;
  --danger: #e5484d;
}

* { box-sizing: border-box; }

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

.hidden { display: none !important; }

.screen { min-height: 100vh; }

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  width: 300px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.login-box h1 { font-size: 1.1rem; margin: 0 0 0.5rem; }

input[type="password"], input[type="text"] {
  background: #0d0f14;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.7rem;
  border-radius: 6px;
  font-size: 0.95rem;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  background: var(--accent);
  color: white;
}

button:hover { filter: brightness(1.1); }

.link-btn {
  background: none;
  color: var(--muted);
  padding: 0.3rem 0.6rem;
}

.danger-btn { background: var(--danger); }

.error { color: var(--danger); min-height: 1.2em; font-size: 0.85rem; margin: 0; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

header h1 { font-size: 1.1rem; margin: 0; }

.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 1rem 1.5rem 0;
}

.tab-btn {
  background: var(--panel);
  color: var(--muted);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
}

.tab-btn.active {
  color: var(--text);
  background: var(--bg);
  border-color: var(--accent);
}

main { padding: 0 1.5rem 2rem; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0 8px 8px 8px;
  padding: 1.5rem;
  max-width: 640px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-header h2 { margin: 0; }

h3 { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin: 1.5rem 0 0.5rem; }

.vars-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.vars-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #0d0f14;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.7rem;
}

.vars-list .key {
  font-family: ui-monospace, monospace;
  flex: 1;
}

.vars-list .set-badge {
  font-size: 0.75rem;
  color: var(--muted);
}

.vars-list input {
  flex: 1;
  padding: 0.35rem 0.5rem;
}

.vars-list button {
  padding: 0.35rem 0.6rem;
  font-size: 0.8rem;
}

.add-var-form {
  display: flex;
  gap: 0.5rem;
}

.add-var-form input { flex: 1; }

.deploy-output {
  background: #0d0f14;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  margin: 1rem 0;
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
  max-height: 300px;
  overflow-y: auto;
}