.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    visibility: hidden;
}

.login-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 3rem 2.5rem;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: var(--shadow);
}

.login-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    color: var(--primary);
}

.login-card h1 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
    color: var(--gray-900);
}

.login-subtitle {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.login-card .form-group {
    margin-bottom: 1.25rem;
    text-align: left;
}

.login-card .form-group label {
    display: block;
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.35rem;
}

.login-card .form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.925rem;
    font-family: inherit;
    color: var(--gray-800);
    transition: border-color var(--transition);
}

.login-card .form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.login-card .form-group input::placeholder {
    color: var(--gray-400);
}

.form-error {
    color: var(--danger);
    font-size: 0.825rem;
    margin-bottom: 1rem;
    padding: 8px 12px;
    background: var(--danger-light);
    border-radius: var(--radius-sm);
    text-align: left;
}

@media (max-width: 480px) {
    .login-card { padding: 2rem 1.5rem; }
}