:root {
  color-scheme: dark;
  --bg: #0f1115;
  --card: #171a21;
  --border: #262b36;
  --text: #e7e9ee;
  --muted: #9aa2b1;
  --accent: #5b8cff;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f4f8;
  --card: #ffffff;
  --border: rgba(20, 20, 40, 0.12);
  --text: #1c1c26;
  --muted: #5b5b6e;
  --accent: #3b6fe0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  padding: 24px;
}

.panel {
  width: 100%;
  max-width: 720px;
  text-align: center;
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 0.25rem;
}

.subtitle {
  color: var(--muted);
  margin-bottom: 2rem;
}

.google-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #fff;
  color: #1f1f1f;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.google-btn:hover {
  filter: brightness(0.96);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  text-align: left;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--card);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.theme-toggle-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

.user-info img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}

.logout-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
}

.logout-link:hover {
  color: var(--text);
  border-color: var(--accent);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.app-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: left;
  text-decoration: none;
  color: var(--text);
  display: block;
  transition: border-color 0.15s, transform 0.15s;
}

.app-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.app-icon {
  font-size: 1.8rem;
  margin-bottom: 0.6rem;
}

.app-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.app-desc {
  color: var(--muted);
  font-size: 0.85rem;
}

.empty-state {
  color: var(--muted);
  padding: 2rem 0;
}