* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
  background: #0d1117;
  color: #c9d1d9;
  min-height: 100vh;
  padding: 1rem;
}
header {
  text-align: center;
  margin: 2rem 0 3rem;
}
header h1 {
  margin: 0;
  font-size: 2rem;
  color: #58a6ff;
}
.subtitle {
  color: #8b949e;
  margin: 0.25rem 0;
}
main {
  max-width: 900px;
  margin: 0 auto;
}
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.app-card {
  display: block;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 1.5rem;
  color: inherit;
  text-decoration: none;
  transition: transform 0.1s, border-color 0.1s;
}
.app-card:hover, .app-card:active {
  transform: translateY(-2px);
  border-color: #58a6ff;
}
.app-icon { font-size: 2.5rem; margin-bottom: 0.5rem; }
.app-card h2 { margin: 0.5rem 0; font-size: 1.2rem; }
.app-card p { margin: 0; color: #8b949e; font-size: 0.9rem; }
footer {
  text-align: center;
  margin: 3rem 0 1rem;
  color: #6e7681;
  font-size: 0.85rem;
}

.hidden { display: none !important; }

#login-view {
  max-width: 360px;
  margin: 0 auto;
}
#login-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
#login-form h2 {
  margin: 0 0 0.5rem;
  text-align: center;
  font-weight: 500;
  color: #c9d1d9;
}
#login-form input {
  font-size: 16px;
  padding: 0.75rem;
  border-radius: 6px;
  border: 1px solid #30363d;
  background: #161b22;
  color: #c9d1d9;
  caret-color: #58a6ff;
}
#login-form button {
  font-size: 16px;
  padding: 0.75rem;
  border-radius: 6px;
  border: none;
  background: #238636;
  color: white;
  font-weight: 600;
  cursor: pointer;
}
.error {
  color: #f85149;
  min-height: 1em;
  margin: 0;
  font-size: 0.9rem;
}

.user-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding: 0.5rem 1rem;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
}
.user-bar strong {
  color: #58a6ff;
}
#logout-btn {
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  border: 1px solid #30363d;
  background: transparent;
  color: #c9d1d9;
  cursor: pointer;
  font-size: 0.9rem;
}