* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f5f6f8;
  color: #1a1a1a;
  margin: 0;
  padding: 0;
}

header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: #1f2937;
  color: white;
}

header h1 {
  font-size: 20px;
  margin: 0;
  flex: 1;
}

#userInfo {
  font-size: 14px;
  opacity: 0.85;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 14px;
  background: #374151;
  color: white;
}

button:hover {
  background: #4b5563;
}

main {
  padding: 24px;
  max-width: 900px;
  margin: 0 auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

th, td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid #eee;
  font-size: 14px;
}

th {
  background: #f0f1f3;
  font-weight: 600;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-todo { background: #fee2e2; color: #991b1b; }
.badge-in_progress { background: #fef3c7; color: #92400e; }
.badge-done { background: #d1fae5; color: #065f46; }

#emptyState {
  text-align: center;
  color: #666;
  padding: 40px;
}

.login-box {
  max-width: 340px;
  margin: 120px auto;
  background: white;
  padding: 32px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.login-box h1 {
  margin-top: 0;
  font-size: 22px;
}

.login-box form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}

.login-box input {
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
}

.login-box button {
  background: #2563eb;
  padding: 10px;
}

.login-box button:hover {
  background: #1d4ed8;
}

.error {
  color: #b91c1c;
  font-size: 13px;
  min-height: 18px;
}